Abstract: The common pistachio psylla, Agonoscena pistaciae Burckhardt & Lauterer, 1989 (Hemiptera: Aphalaridae), is a key pest found in pistachio orchards in Iran. This pest has a high potential for developing resistance to insecticides due to its short life cycle and high reproductive potential. Intensive application of insecticides leads to excessive selection pressure followed by resistance to synthetic insecticides in some psylla populations. In this research, effects of four concentrations of three extensively used insecticides (spirotetramat, acetamiprid, and hexaflumuron) on energy resources (like sugar, lipid, glycogen, and protein contents), energy consumption, and cellular energy allocation were investigated in resistant and susceptible populations of the common pistachio psylla in the Kerman province of Iran. Energy resource contents in the susceptible population (133 331.2 mj/insect) were significantly more than in the resistant population (96 253.5 mj/insect), whereas energy consumption in the resistant population (38 630.4 mj energy/h/insect) was higher than in the susceptible population (31 276.8 mj energy/h/insect). Additionally, cellular energy allocation in the resistant population (2 400.9 mj energy/h/insect) was higher than in the susceptible population (2 126.13 mj energy/h/insect). Therefore, stress (especially toxicants) causes variations in metabolism, which influences the growth and reproduction of the pest.

The experiment was conducted to study the seasonal abundance of the most important insect pests of maize and its relation with natural enemies and weather factors in Assiut governorate during 2019 and 2020 seasons.The samples were examined from June to September to determine the population of Limothrips cerealium (Haliday, 1836), Rhopalosiphum maidis (Fitch, 1856) and Sesamia cretica Lederer, 1857 and its the associated predators. The population of L. cerealium recorded a peak in the 4th week of July 2019 and the 1st week of August 2020. The highest population of R. maidis occurred in 1st week of September at both seasons. The simple correlation and regression between L. cerealium population and three weather factors were insignificant in both seasons while S. cretica population were found to be significant with R.H%. The population of R. maidis in the 1st season was insignificant negative with temperatures but was significant in the 2nd season. The plant age was more effective than the weather factors on the population of the three insect pests. The common predators were Orius albidipennis (Reuter, 1884) and Scymnus interruptus (Goeze, 1777)which were highly significant with all three insect pests.

Butterflies are highly sensitive to habitat and climate changes, and are recognized as important indicators of the state of the environment. Therefore their diversity needs to be studied on a regional scale in order to take actions for their protection by national and international legislation. Here, the results of a butterfly survey in the northeastern part of Kosovo are presented. A total of 93 species were recorded from 2014 to 2017 in six localities, including seven Hesperiidae, four Papilionidae, 15 Pieridae, 25 Lycenidae, 41 Nymphalidae and a single species of Riodinidae. Six of them are listed in the Red List of European Butterflies, all as Near Threatened: Cupido decoloratus (Staudinger, 1886), Pseudophilotes vicrama (Moore, 1865), Hipparchia statilinus (Hufnagel, 1766), Melitaea aurelia (Nickerl, 1850), Melitaea diamina (Lang, 1789) and Parnassius mnemosyne (Linnaeus, 1758). Five species are listed in the recently published Red book of the fauna of Kosovo: two species as Vulnerable (VU), Lycaena dispar (Haworth, 1802) and Thecla betulae (Linnaeus, 1758) and three as Near Threatened, Cupido decoloratus (Staudinger, 1886), Papilio machaon (Linnaeus, 1758) and Zerynthia cerysi (Godart, 1824). From a zoogeographical point of view, the reported species represent eight faunal elements: 51 Euro-Siberian (ES), 27 Euro-Oriental (EO), six Euro-Meridional (EM), five Holarctic (Hol), two Tropical (Tro), one Boreo-Montane (BM), one Cosmopolitan (Cos) and one Mediterranean (Med). We conclude that 93 species of butterfly fauna recorded in this survey represent a relatively high diversity, but further surveys need to be organized in order to gather more data.

Many small Diptera adopted at some level endophilic life style, including man-made buildings. Stables create a specific type of microhabitat, which provides shady and relatively humid conditions in combination with excess of organic matter. Unlike the parasites (mosquitos, biting midges, etc.), the commensal fauna of stables is poorly studied. Moth flies (Psychodidae) were collected in cow stable located in Šenkvice, SW Slovakia. Special traps (derived from Malaise traps) were installed along the stable internal wall and in three different heights. In total, we recorded 6325 moth flies belonging to 8 species. The flight period lasted from spring to autumn. Seasonal dynamics was strongly influenced by rainfall and mean week temperature, e.g. high temperature in mid-summer caused drop in moth flies captures. The moth flies clearly preferred the ground and moderately preferred the interior of stable.

Based on the forest-pathological inventories for the last 30 years, the economic importance of the insect pests in the Bulgarian forests and its dynamics for the periods 1990–2002 and 2003–2018 were determined. Insect pest attacks have declined sharply in the last sixteen years- in coniferous forests they have decreased three times and in deciduous ones - almost six times. Generally, the health status of the forests, with regard to pest status, after 2003 is improving, and this is more clearly expressed in the deciduous forests. As a result of this development, the pest control measures areas gradually shifted from deciduous to coniferous forests. Since 2003, deterioration in the health status of ageing coniferous plantations has been identified, however, with the attacks of two major groups of pests escalating- pine sawflies and bark beetles.

Abstract: A soft scale, Pulvinaria hydrangeae Steinweden, 1946 has been observed in large numbers on various host species in urban areas and natural habitats in Central Poland, and may be noteworthy as a potential pest of commercial and forest plants. Basic diagnostic information on this scale, as well as information on its life cycle, host range and distribution are provided. Pulvinaria hydrangeae resembles the cosmopolitan P. floccifera (Westwood, 1870), and the main characteristics that distinguish these two species from each other are discussed. A key to adult females of the Pulvinaria species found outdoors in Poland is also included.

Lepidoptera are one of the largest order among insects. Their role and importance for ecosystems is essential, especially in forestry and agricultural communities. Among the butterflies there are a large number of representatives, whose larvae are typically phyllophagous and play a significant role in the defoliation of a number of deciduous tree species. Many of them are storage pests or pests of fruit trees and crops. With an increasing demand and use of biological control approaches, such as applying entomopathogens, the question of immune mechanisms in these insects and their contribution to the study of insect immunity have become very significant. This review presents a summary including more than 40 lepidopteran species, which have been the subject of studies related to basic defense mechanisms, namely, the presence of antimicrobial peptides, hemocytes, immune and antiviral responses and signaling pathways.

: The authors discuss the dragonfly fauna of Lublin based on fragmentary historical data and the results of their own research from the period 1992-2019. A total of 54 dragonfly species were recorded: 17 in the historical period and 53 contemporarily. Although the Lublin area is a hot spot of odonate species richness in both the Lublin Upland and central and eastern Poland, it is of little importance for habitat specialists and also endangered and protected species. The species composition of the fauna was analysed in three zones of the city: the outskirts, the urbanized area and the City Centre. The diversity and numbers of dragonflies decreased significantly along this urbanization gradient and some groups of stenotopic species disappeared. The importance of anthropogenic water bodies in maintaining the diversity of dragonflies in urban areas, in particular stormwater ponds and garden ponds, is emphasized.

Records of nine Pediciidae and 80 Limoniidae species (10 Limnophilinae, 38 Chioneinae, and 32 Limoniinae) are presented. Seventeen species are recorded for the first time from Azerbaijan and 14 from Georgia, of which 12 species are new to the whole of Transcaucasia. Three species are recorded for the first time since their original descriptions. Four subspecies of the genus Molophilus Curtis, 1833 are elevated to species rank, namely M. (M.) hebetatus Savchenko, 1976, n. stat., M. (M.) decoloratus Savchenko, 1978, n. stat., M. (M.) brachyurus Savchenko, 1978, n. stat., and M. (M.) cephaliger Savchenko, 1978, n. stat. Two synonymies are proposed, Gonomyia (Gonomyia) conoviensis Barnes, 1924 = G. (G.) oxybeles Alexander, 1975, n. syn. and Lipsothrix nobilis Loew, 1873 = L. iranica Alexander, 1975, n. syn.

The diversity of predatory insect fauna in nine districts of Kashmir was assessed. Collection was done in agroecosystem with the help of different collecting nets and handpicking methods. As a result of two-year study, a total of 50 species belonging to 14 families and 7 orders were identified. Hierodula patellifera Serville, 1839 of the order Mantodea was reported for the first time from the Kashmir valley. Also, different diversity indices used during the present study revealed the existence of considerable number of predatory species distributed evenly throughout the study area. Diversity of different study sites was correlated by Hutcheson’s t- test. Highest values of diversity indices were observed in the order Coleoptera.