Beetle Research Articles

Regularities in the formation of entomofauna in alfalfa agrocenosis

The field work was performed at the experimental field of the Institute of Forage Crops, Pleven, Bulgaria during the period of 2006-2009. The share distribution of the orders Coleoptera, Thysanoptera, Diptera, Orthoptera and Hemiptera, suborder Sternorrhyncha, Heteroptera, Fulgoromorpha and Cicadomorpha was established for every four alfalfa growth cycles during the vegetation period for four years. It was found that the share participation of orders was determined primarily by the population dynamics of the dominant insect species and it was closely dependent on plant development following a characteristic course over the years. Depending on the food specialization and the division of the species into harmful and beneficial, the share of predators in regrowth corresponded to that of their prey. A clear trend was observed of increasing the share of harmful species and reducing the beneficial ones (Coleoptera, Thysanoptera, Hemiptera: Heteroptera) with the alfalfa development over the years.

Pemantauan Keanekaragaman Hama dan Musuh Alami Tanaman Ubi Jalar dengan Pitfall Trap

The abundance of pest and natural enemy populations on a land can be given in the diversity and abundance of feeding sources and other available resources. The purpose of this study was to determine the diversity of pests and natural enemies of sweet potato plants. Research on land with three types of sweet potatoes, namely yellow sweet potatoes with narrow leaves, yellow sweet potatoes with broad leaves, and sweet potatoes with white leaves. Around the research area are long beans, papaya, guava, soursop, and durian. Sampling of pests and natural enemies by using a pitfall trap. The data analyzed was in the form of the Shannon-Weaver (H') diversity index. The index of pest diversity of the order Coleoptera on narrow-leaved yellow sweet potato, broad-leaved yellow sweet potato, and white sweet potato was 0,160; 0,1270; and 0,1300. The index of pest diversity of the order Orthoptera on narrow-leaved yellow sweet potato, broad-leaved yellow sweet potato, and white sweet potato was 0,3585; 0,3599; and 0,3632. The index of pest diversity of the order Hemiptera on narrow-leaved yellow sweet potato, broad-leaved yellow sweet potato, and white sweet potato was 0,0635; 0,0771; and 0,1300. Diversity index of natural enemies of the order Araneae on narrow-leaved yellow sweet potato, broad-leaved yellow sweet potato, and white sweet potato 0.2180; 0.3061; and 0.2705. The three sweet potato fields had a low diversity index.

The genome sequence of the black clock beetle, Pterostichus madidus (Fabricius, 1775).

We present a genome assembly from an individual female Pterostichus madidus (the black clock beetle; Arthropoda; Insecta; Coleoptera; Carabidae). The genome sequence is 705 megabases in span. The majority (99.96%) of the assembly is scaffolded into 19 chromosomal pseudomolecules, with the X sex chromosome assembled.

Growth and survivability of the black carpet beetle fed a whole feather diet

AbstractKeratin waste has become a significant side effect of meat production and processing that needs urgent addressing. In this study, we explore the potential of the black carpet beetle as one of the few species known to metabolize feather keratin. Rearing larvae on raw feathers revealed an increased mortality but no significant differences in the number of larval moults compared with the control diet, although growth was stunted. At the end of the study, up to 42% of the original feather mass was consumed by the larvae, with approximate digestibility varying between 68%–89%. Gut enzyme analysis confirmed keratinolytic activity in the larval digestive tract. Furthermore, protein content in larvae reared on a feather diet surpassed control‐fed larvae in overall protein content (0.790 mg/ml vs. 0.628 mg/ml per 1 mg of live larval weight). Our study demonstrated the black carpet beetle as a promising biological fermenter for sustainably converting feather protein into insect protein.

Fireflies in South East Asia: Species Diversity, Distribution, and Habitat (2015-2021)

Fireflies are one of the most famous luminous insects that emit bioluminescence. The most famous fireflies in Southeast Asia are Pteroptyx , of the order Coleoptera and the Lampyridae family. This review paper combined the data on the species diversity and firefly distribution in Southeast Asian countries such as Malaysia, the Philippines, Indonesia, Cambodia, Myanmar, Singapore, Sri Lanka, Papua New Guinea, Laos, Thailand, and Vietnam published in 2015-2021. Some countries have limited data and no studies to identify firefly species and their habitat from 2015 to 2021; the data before 2015 was used. Furthermore, the lack of studies by Southeast Asian researchers regarding the richness of firefly species has been reviewed. Malaysian and Thailand researchers are among the forerunners in the study related to fireflies in the Southeast Asian region compared to other Southeast Asian countries. Lastly, not much is known about the display trees or habitat of fireflies in many areas such as the Philippines, Indonesia, Cambodia, Myanmar, Singapore, Sri Lanka, Papua New Guinea, Laos, Thailand, and Vietnam. More studies are warranted to be conducted in the future on firefly species and their habitat.

Coleoptera fauna in forest ecosystem of Shivalik hills region of India - A mini Review

A review is given on documentation of important and major insect order coleoptera in forest ecosystem of Shivalik Hill regions of India. Shivalik Hills are situated in north Indian region to foot hills of North-West Himalaya due to position make itsunique bio geographic location, diversified climatic conditions and enormous eco-diversity and geo-diversity of flora and fauna. Several renowned workers contributed and documented number of species of coleoptera of the Shivalik Hills region of India. After reviewing the literature on coleoptera fauna in the Shivalik Hills areas indicates some fragmentary work on different aspects of coleoptera such as taxonomic, bioecology, species diversity, seasonal abundance, distribution and pest status. Though, it was found that some documents published but, it is needed to explore more coleopteran fauna and prepare consolidate documents from forest ecosystem of Shivalik Hills and detailed study on taxonomy, bioecology, species diversity, abundance and distribution in forest ecosystem due to current changing climatic condition

Rasgos funcionales de la especie invasora Thunbergia alata (Acanthaceae) y su importancia en la adaptación a bosques andinos

Antecedentes y Objetivos: Thunbergia alata es una de las diez especies de plantas invasoras más problemáticas de Colombia. Su rápida colonización y adaptación a los bosques andinos ha afectado la composición y estructura de las comunidades vegetales nativas. En esta investigación se realizó un análisis de rasgos funcionales, generando nueva información que podría explicar la rápida colonización, adaptación y potencial invasor de T. alata en este tipo de ambientes andinos. Métodos: Para obtener esta información se realizó una serie de observaciones sobre la morfología y anatomía de raíces, tallos, hojas, flores, frutos y semillas. Asimismo, se realizó una caracterización de sus visitantes florales y de las relaciones simbióticas con los microorganismos del suelo. Resultados clave: Se determinó que tanto los rasgos morfológicos como los fenómenos de interacción favorecen la adaptabilidad de T. alata en los bosques andinos y podrían contribuir en mayor medida a su colonización activa en este tipo de ambientes. Se encontró una asociación activa de T. alata con diferentes especies de visitantes florales nativos e introducidos, con un total de 2266 visitas florales realizadas durante nuestro estudio por siete especies de insectos pertenecientes a los órdenes Coleoptera e Hymenoptera. En todos los sitios de muestreo se encontraron esporas de hongos micorrizógenos asociadas a las poblaciones de T. alata. El número de esporas por 100 g de suelo variaba entre 300 y 424. Todas las raíces de T. alata, sin excepción, presentaban una alta colonización por hongos micorrizógenos arbusculares. Conclusiones: Creemos que la información obtenida en esta investigación contribuirá a la generación de estrategias integrales y efectivas para el control de esta especie en los bosques andinos.

Diversity of Soil Arthropods in Suranadi Nature Park, Lombok, and its role on science lesson in elementary and secondary school

The absence of data related to Arthropoda classes other than the orders Lepidoptera and Odonata in Suranadi Nature Park raises the need for studies on these fauna. This study aims to analyze the soil arthropod community and its role in science lessons in primary and secondary schools. This descriptive research was carried out from May to December 2019. Samples were collected in three paths, namely the forest edge, the middle of the forest and the waterway using the pit fall trap method. The collected samples were identified to species taxon at the Biology Laboratory of the Faculty of Teacher Training and Education, Mataram University. To obtain data on species diversity, an analysis was carried out using the Shannon-Wiener equation. There are 33 species of soil arthropods found. They consist of 3 species from the order Blattodea, 2 species from the order Orthoptera, 4 species from Araneae, 11 species from the order Coleoptera, 10 species from the order Hymenoptera, 1 species each from the orders Homoptera, Tysanura and Diptera. The most abundant species is Platidema sp of the order Coleoptera. Based on the results of the analysis, the diversity index of soil Arthtopoda species in Suranadi Nature Park is 2,628. The qualitative analysis shows that there are 2 elementary and junior high school science topics that are suitable to be taught using the concept of soil arthropod diversity at Suranadi Nature Park.

Single cultivation versus sweet potato and popcorn intercropping: benefits over edaphic fauna in ecological-based system

The objective of this study was to evaluate the diversity and abundance of edaphic fauna organisms in single and intercropped systems of sweet potato (Ipomoea batatas) and ecologically-based popcorn (Zea mays) in Red Oxisol, in the Northwest region of the state of Rio Grande do Sul, Brazil. Four sweet potato cultivars were used in single systems and intercropped with popcorn: BRS Amélia, BRS Rubissol, BRS Cuia and Crioula. The soil fauna assessment was carried out using PROVID-type traps. Richness, abundance and the dominance indices of Shannon (H’) and Simpson (D) were determined. The orders Coleoptera, Hymenoptera, Collembola and Orthoptera, were dominant in both cultivation systems. The single cultivation showed a greater number of organisms in the orders Isopoda and Collembola, whereas in the intercropped system, the orders Lepidoptera and Hymenoptera stood out. The intercropping cultivation of sweet potato and popcorn shows highest diversity and abundance of soil organisms compared to the single cultivation.

Abundance and diversity of insects associated with dry fish spoilage in three (3) selected markets in Yenagoa, Bayelsa State

The insect vectors associated with spoilage of dried fish in Yenagoa were studied. This was done in order to identify the diversity and abundance of Insects implicated in fish spoilage in order to suggest alternate storage means. Insect infested dry fish samples were procured from Three (3) markets (Swali (A), Kpansia (B) and Tombia (C)) and put into clean transparent plastic containers covered with little nets. They were moistened every day with water sprinkled into the containers for 1 week for insects to emerge. Insect vectors were identified to species level using standard keys. Result of the investigation reveal that a total of eleven Taxa and 156 individuals were found: 12 Calliphorid larvae, 1 crane fly larvae, 46 Musca domestica larvae, 5 Phaenicia sericate, 20 Piophilia casei, 20 Calliphorid pupa, 3 Tephritid larvae, 6 Necrobia fufipe larvae, 10 Dermestes maculatus pupae, 30 Phlorid pupa, 3 scatopsidae larvae. The dominant taxon was Musca domestica larvae followed by Phlorid pupa, and the least abundant was crane fly larvae. From the eleven (11) taxa seen, the abundance of Phlorid pupa was observed in station C (30). Piophilia casei and Musca domestica larvae were the only taxa present in the three sample stations. The Shannon index gotten in station B varied from station A and C. Shannon diversity index for station B was observed to be 1.535 and A and C were observed to be 0.918 and 1.466 respectively. Species evenness was greatest at station A (0.835). The insect vector of the order coleoptera (Beetles) were present only in fish samples from Swali and Tombia markets and absent from fish samples from Kpansia market. This may be due to the storage methods for dry fish in these markets and also due to environmental factors prevalent in these markets. The dominance of Musca domestica is indicative of possible health hazards as the consumption of insect infested dried fish in Yenagoa without washing may result in cholera and diarrhea. The study concluded that insects are the major vector pathogens causing spoilage in dried fish in Yenagoa, as indicated in similar studies in the Niger Delta. Therefore, more effort should be taken in the preservation and storage of dry fish to ensure food safety and security.

Observation and Seasonal Variation of Lady Bird Beetle (Coleoptera: Coccinellidae)

The Coccinellids, which are commonly called as lady bird beetles belong to the family Coccinellidae of the order Coleoptera. The year was divided into three season viz., summer, monsoon, winter and the diversity was calculated for each season in all the study sites. The highest seasonal diversity was observed during winter season in all the study sites followed by monsoon and summer season.

Species richness of beetle (Hexapoda: Coleoptera) in Suranadi Nature Recreation Park, Lombok Island

This study aimed to determine the species richness of Hexapoda: Coleoptera in Suranadi Nature Recreation Park (NRP), Lombok Island, Indonesia. It is an exploratory, descriptive study with a qualitative method. Sample collection was carried out during May – July 2019 in three different habitats consisting of waterways along with the middle and edges of the forest. Sample collection was conducted using the pitfall trap method. The samples were identified at Biology Laboratory, Faculty of Teacher Training and Education, University of Mataram to obtain the species richness data. It was revealed that there were 11 species from 8 families of the Order Coleoptera. The species are Agonum micans, Trycorinus rudepunctatus, Euspilotus assimilis, Paracymus subcupreus, Phanaeus vindex, Myrmex sp., Dinopelma leptaleum, Oxyporus maxillosus, Oxylobus maridionalis, Tachys blandus and Platydema violacea.

Insect faunal succession on buried goat carcass in Aligarh Region of Uttar Pradesh, India, with implications in forensic entomology

BackgroundStudies on the insect fauna of animal corpses, used as a vertebrate model, may help forensic investigation cases to estimate the post-mortem-interval (PMI), cause of death, and crime-scene location. Likewise, entomofauna of buried corpses can assist in determining the post-burial-interval (PBI), movement of the body or hiding of the crime. The bodies buried under the soil decompose at a slower rate than the body exposed. Also, there are fewer insects that can go underground to locate the corpse. Such types of studies on the insect fauna of buried carrion can help in forensic investigation cases. The current study aims to determine the succession of a goat carcass buried shallowly in an outdoor habitat of the Aligarh Region, North India.ResultsIn the present study, we examined a goat carcass buried at a depth of nine inches to determine the type of insects capable of colonizing buried animal carcass in the study area of Aligarh, Uttar Pradesh, India. We have found five species of Diptera, three species of Coleoptera, one Hemipteran species, and one Hymenopteran species. Adult Dipterans found during different samplings were Megaselia scalaris (Loew 1866), Chrysomya megacephala (Fabricius 1794), and Calliphora vicina (Robineau-Desvoidy, 1830). Dipterans’ immature stages were found to be of Synthesiomyia nudiseta (van der Wulp, 1883) and Hydrotaea capensis (Wiedemann, 1830) Megaselia scalaris. Adults of Saprinus quadriguttatus (Fabricius, 1798), Saprinus splendens (Paykull, 1811), and Onthophagous quadridentatus (Fabricius, 1798) of order Coleoptera. Adult Cydnus species (Fabricius, 1803) of Hemiptera and Dorylus species (Fabricius, 1793) of Hymenoptera have also been recorded. During the sampling, the authors reported the stages of carcass disintegration and the insects associated with it.ConclusionsFlies, beetles, and ants have been recorded in association with the buried goat carcass, which may add to the knowledge of colonization of buried bodies in India and around the globe. S. nudiseta, H. capensis, and M. scalaris, which are found on the goat carrion in the current study, have also been reported on human corpses in the past. Furthermore, M. scalaris found consistently on two sampling dates beneath the ground on the goat carcass and was also seen running on the grave’s surface. In addition, authors have reported several species belonging to different order and families, corresponding to various stages of decomposition of corpse which were earlier not known from buried corpses from India. So, it is crucial and may have implications in medicolegal cases.

Evaluation of Cellulolytic Endo-1,4-B-D-Glucanase Activity in the Digestive Fluid of Adult Phytophagous Beetle Hoplasoma unicolor

Insects of the taxonomic order Coleoptera are recognised for considerable cellulolytic activity in their digestive fluid. The cellulolytic activity of the gut fluid in Hoplasoma unicolor, a member of Coleoptera, however, remains unexplored. In this study, we, for the first time, report the qualitative and quantitative analysis of cellulolytic activity in the digestive fluid of this insect. The cellulolytic endo-1,4-β-D-glucanase activity was confirmed in the supernatant of the insect’s digestive fluid by agar plate assay using carboxymethyl cellulose as the substrate. To determine the optimum pH, enzyme activity was further assessed in an acidic pH range of 5 to 6, and the highest activity was observed at pH 5.3. For quantitative analysis, endoglucanase activity was measured using 3,5-dinitrosalicylic acid method which revealed that the specific activity of the gut sample was 0.69 (±0.01) units per mg of protein. For further characterisation of the cellulases in the sample, SDS-PAGE and zymogram analysis were carried out. Two active cellulolytic bands were detected on the zymogram suggesting the presence of two distinct endoglucanases which completely disappeared upon heating the sample at 55°C. Our study, therefore, highlights prospect of the gut fluid of H. unicolor as an important source of cellulase enzymes that merits further investigations into their extensive characterisation for potential industrial applications.

Survey of insects and Mites Associated with Stored Rice in Nigeria

Insect pest infestation causes quantitative or qualitative losses in stored Rice. Proper identification of the insect species infesting stored Rice is critical for making pest management decisions. This study assesses the species composition and abundance of insect pests of stored Rice in Nigeria. Imported and Local Rice samples each weighing one kilogram were obtained every 6 months from three randomly selected vendors in randomly selected markets in 14 towns in 14 states in Nigeria. 50g were weighed from each sample and kept in vials, covered, strapped with rubber band and kept in the laboratory. The Rice samples were sieved to collect all adult insects present after Six months in storage. Sampling lasted for two years (2016-2017). There were 11 species of insect pests and one Mite species in the stored Imported and Local Rice samples. Most of the species were from the order Coleoptera with the percentage occurrence of 80.9% in Imported Rice and 82% in Local Rice. The insect species composition includes Sitophilus oryzae, Cryptolestes ferrugineus, Sitophilus zeamais, Psocids, Sitotroga cerealella, Ahasverus advena, Tribolium castaneum Oryzeaphilus surinamensis, Oryzaephilus mercator and Rhyzopertha dominica. The Psocid and mite species could not be identified. Sitophilus oryzae was the main insect pest of Rice with the percentage occurrence of 39.23% in Imported Rice and 26.87% in Local Rice. The outcome of this study is very important in planning control measures as the knowledge of the species composition and abundance of insect pests is an important component of pest management in stored Rice in Nigeria.

Fallows and permanent grasslands conserve the species composition and functional diversity of carabid beetles and linyphiid spiders in agricultural landscapes

Abstract The European Union reformed the Common Agricultural Policy (CAP 2013) to include greening measures with the aim to decrease negative impacts of farming on the environment and biodiversity. The degree to which greening measures such as permanent grassland or fallows of different ages enhance biodiversity is still debated. We investigate the effect of fallows in two different age classes and permanent grassland in the surrounding landscape on the taxonomic and functional diversity of two numerically dominant groups of natural enemies in cereal fields: soil‐emerging carabid beetles (Family Carabidae, Order Coleoptera) and ground‐active linyphiid spiders (Family Linyphiidae, Order Araneae). The species richness, abundance and Hill–Shannon diversity of carabids and linyphiids did not differ significantly between fallows and cereal fields and was not significantly related to the proportion of permanent grassland in the surrounding landscape. The species composition of both communities differed significantly between cereal fields and fallows. The functional distinctness, as an index reflecting the similarity among species in terms of functional traits, of linyphiids was significantly higher in fallows than in cereal fields. The trait composition of carabids was significantly related to the proportion of permanent grassland depending on field type (cereal or fallow). Our results document considerable species turnover in natural enemy communities of adjacent cereal fields and fallows, and support the assumption that older fallows (>8 years) produce functionally more diverse natural enemy communities. Maintaining fallows for a long period is an important measure to promote the functional diversity in predaceous arthropod communities.

Evaluation on floral visitors of Zingiber spectabile (Zingiberaceae) at Gua Ikan, Kelantan, Peninsular Malaysia

Insects are the well-known pollinators of angiosperm plants. However, the discovery of specific insect pollinators of a specific plant is still lacking in many angiosperms. Family Zingiberaceae which is also known as a ginger family, is one of the least explored angiosperms in the aspect of plant-pollinator interaction. Hence, this study was conducted to understand the interaction between Zingiber spectabile and pollinators. The aims of the study are i) to determine the floral blooming period of Z. spectabile; ii) to identify floral visitor of Z. spectabile; iii) to identify the insect pollinators of Z. spectabile. The study was conducted in the limestone forest of Gua Ikan (Dabong, Kelantan) in September 2020. Direct observation method was used to achieve the above-mentioned objectives. Observation was performed from 0700 hours to 2000 hours. A floral visitor was counted as pollinator when the insect touches the sexual organs of the flower. This study reveals that flower of Z. spectabile have a lifespan of less than a day. Flower opening (anthesis) starts at 1000 hours while flower closure time starts at 2000 hours. An inflorescence of Z. spectabile produce one to three flowers per day. Insect order Coleoptera, Diptera, Hemiptera, Hymenoptera and Lepidoptera are the common floral visitors of the Z. spectabile. However, among the floral visitors, order Diptera, Hemiptera and Lepidoptera were found to play the role of pollinator for Z. spectabile. This study reveals the fundamental information about pollinators of Z. spectabile. Further detailed study is recommended to reveal the effects of floral scent in attracting the pollinators as further evaluation of Zingiberaceae-pollinator interaction.

CONTRIBUTIONS TO THE KNOWLEDGE OF THE STRUCTURE AND ECOLOGICAL INDICES OF COLEOPTERS POPULATIONS IN THE WALNUT ORCHARDS

The observations were made during 2019 and 2020 in a walnut orchard from Sârca farm, in Iasi County. The material was collected using Barber-type soil traps during the two years of research, at a time interval between 10 and 14 days from May to August inclusive, thus integrating a number of 10 or 8 harvests in 2019 and 2020. The biological material collected was cleaned of plant debris and then prepared for identification, at the level of order, and for the specimens of beetles we made the determination up to the species level. From the analysis of the collected material it results that the collected specimens belong to the Hexapoda Class, the Coleoptera order. The species of coleopters insects collected belong to the species: Anysodactilus binotatus, Harpalus pubescens, Otiorrhynchus pinastri, Dermestes laniarius, Harpalus tenebrosus, Amara crenata, Paramalus paralelipipedus, Colodera aethiops, Phyllotreta attra, Harpalus calceatus

Secondhand homes: The multilayered influence of woodpeckers as ecosystem engineers.

Ecosystem engineers alter, and can be influenced in turn by, the ecosystems they live in. Woodpeckers choose foraging and nesting sites based, in part, on food availability. Once abandoned, these cavities, particularly within areas of high forage, may be crucial to secondary cavity‐nesting birds otherwise limited by cavities formed through decay. Our study examined factors that influence the nesting success of primary cavity nesters and the subsequent impact on secondary cavity‐nesting birds. Using 5 years of point count data, we monitored the outcomes of cavity‐nesting birds in South Texas. We used logistic‐exposure models to predict daily survival rates based on cavity metrics and used woodpecker foraging trends and insect surveys to determine if nesting where woodpeckers actively forage benefits secondary cavity‐nesting birds. Both woodpeckers and secondary cavity nesters shared predictors of daily survival; nests were more successful in cavities with small openings in minimally decayed trees. All secondary cavity nesters had higher probabilities of success when nesting in an abandoned woodpecker cavity, opposed to ones formed by decay. Woodpeckers tended to forage in areas with higher‐than‐average levels of the insect orders Coleoptera, Hymenoptera, and Orthoptera, and secondary cavity nesters had higher rates of success when nesting in these areas. Our results suggest abandoned woodpecker cavities may be constructed in a way that directly benefit secondary cavity nesters. Additionally, we suggest an interplay between these ecosystem engineers, food availability, and secondary cavity nesters: Woodpeckers engineer superior nesting cavities in areas where food is more abundant, and the resultant cavities in areas of high forage may benefit local secondary cavity nesters. Our findings indicate that there is still much to be explored in the role of ecosystem engineers, and how they influence local communities on multiple trophic levels.

Blister beetle bites: a case report

Contacts with insects of the order coleoptera of the families Meloidae and Oedemeridae, in particular the bites of the abscess beetle, lead to acantholysis and the formation of intraepidermal blisters, as well as nonspecific skin damage. The family Meloidae (true abscess beetles) are distributed almost everywhere, with the exception of the territories of New Zealand, Antarctica and the Polynesian islands.
 Insect species of the Meloidea family have a unique life cycle. Meloidae females lay eggs not only on coleoptera larvae, but also on any other insects, such as crickets, mantises, wasps, bees, on which their metamorphosis continues in the future. Populations of abscess beetles number a large number of individuals, which increases the risk of their meeting with humans. These species have a highly toxic colorless and odorless poison of non-protein nature ― cantharidin.
 There is a rare clinical case of an abscess beetle bite. The debut of the disease occurred at the time of the patients trip to the island of Goa (India), where he noted insect bites with the appearance of the first blistering rashes and further progression of the skin process. The primary diagnosis was complicated by nonspecific changes detected during the pathomorphological examination of the skin, in the form of subacute dermatitis without classical manifestations of acantholysis with intradermal blisters due to delayed biopsy appointment. Against the background of ongoing treatment (prednisone; corrective therapy with potassium, magnesium, calcium, gastroprotectors; antibiotics; nonsteroidal anti-inflammatory and antimycotic drugs; combined topical glucocorticoids; a course of systemic autohemoozonotherapy) from the skin process, positive dynamics was noted in the form of relief of inflammatory phenomena, partial epithelization of wound defects.
 Secondary infection of rashes, accompanied, as in this case, by abscessing, is often found with bites of various insect families: cases up to the development of necrotic fasciitis with a fatal outcome are described.
 The described case is of clinical, scientific and epidemiological interest due to the isolated publications on this nosology and the complexity of diagnosis. Knowledge of the clinical picture of the disease will allow practitioners to develop tactics for managing patients with timely selection of effective therapy.