Short Setae Research Articles

A new species of the genus Lefroyothrips (Thysanoptera: Thripidae) from India

An identification key is provided to three species of Lefroyothrips recorded from India, including a new species L. varatharajani collected from flowers of Mimusops elengi. Although similar to L. lefroyi in having short ocellar setae on the head, the new species has only a single row of postocular setae.

Pedicelliops gen. nov., a new genus from West Africa with striking antennae (Ephemeroptera, Baetidae)

A new genus of Baetidae, Pedicelliopsgen. nov., and a new species, P. capillifersp. nov., are described from Guinea (West Africa) based on larvae. The new genus is characterized by having strongly enlarged pedicelli and very short flagella, a brush of dense, short setae between prostheca and mola of both mandibles, a small rectangular labrum, an apicolaterally pointed maxillary palp, a labial palp with a small distolateral protuberance and long setae ventrally on glossae and paraglossae. The femora of all legs are covered with numerous long, fine setae. The patellotibial suture is absent on the fore tibia and present on middle and hind tibiae. The claw is pointed with two rows of denticles. No spines are present on the posterior margins of the abdominal tergites. The imago remains unknown and the relationships with other African genera of Baetidae remains tentative. Despite being easily identifiable and of a fairly large size (body length ca. 5 mm), only two larvae were found in two highly sampled localities in West Africa.

Description of the larva of Protaetia (Cetonischema) speciosa speciosa (Adams, 1817) (Coleoptera: Scarabaeidae)

The larva of Protaetia (Cetonischema) speciosa speciosa (Adams, 1817) is described and illustrated for the first time. The larvae of the subgenus Cetonischema Reitter, 1899 have a thoracic spiracle same size as a spiracle of abdominal segments VII–VIII, larger than spiracles of abdominal segments I–VI; spiracles of abdominal segments I–VI are the same size; venter of last abdominal segment with short setae and a single of long to short setae on the lateral sides and at the apex, as well as areas without setae and spines in median part. The larva of Protaetia s. speciosa differs from larva of P. speciosissima (Scopoli, 1786) by a number of pali and it chaetotaxy in the row in palidia, and by a chaetotaxy of head capsula.

Revision of the whitefly genus, Asterochiton Maskell (Hemiptera: Aleyrodidae) from New Zealand, a study of intraspecific variation.

All the specimens of Asterochiton species (Hemiptera: Aleyrodidae) on slides in the New Zealand Arthropod Collection, Auckland, were examined. The study reveals that the genus is currently restricted to New Zealand and is redescribed here. Obvious generic characters are the sub-elliptical to sub-circular puparium with distinct invaginations at the thoracic and caudal pores. Seven species are described: Asterochiton asteliae sp. n. from Astelia trinervia (Asteliaceae), and A. arboreae sp. n., A. areolatae sp. n., A. foetidissimae sp. n., A. propinqua sp. n., A. rhamnoidis sp. n., and A. rotundifoliae sp. n. from small-leaved Coprosma spp. (Rubiaceae). There are now 12 named species of Asterochiton, but the Brazilian species, Asterochiton auricolor (Bondar, 1923), does not belong in the genus. Details of minute setae, previously overlooked in described species, are provided. The setae length was found to vary at specific positions. Two species infesting three species of Pittosporum (Pittosporaceae) were observed having long and short setae on the abdomen, sometimes varying within a population from a single tree/host. Asterochiton pittospori Dumbleton is therefore synonymized with A. simplex. Additionally, the location of some setae varied on the subdorsal/submarginal area within a puparium. Chaetotaxy for Asterochiton species is proposed. A key to the puparia of Asterochiton species is provided.

<p><strong><em>Fuscoporia ambigua</em></strong><strong> <em>sp. nov</em>., a new species from America and China</strong></p>

A new species of Hymenochaetaceae, Fuscoporia ambigua sp. nov., is described based on specimens from the USA and China. The phylogeny, based on the ITS+nLSU+RPB2+TEF1 dataset, revealed that it nested within the Fuscoporia clade, and all the American and Chinese specimens of the new species clustered in a lineage with good support. The new species is characterized by its annual, resupinate basidiocarps with pores measuring 5–6 per mm, aseptate skeletal hyphae, presence of mycelial setae and cystidioles, long hymenial setae (45–75 μm) which are occasionally septate, presence of cystidioles, and ellipsoid basidiospores measuring 4.2–5.2 × 2.8–3.3 μm. Fuscoporia ambigua is very similar and closely related to F. ferruginosa, but the latter species has a perennial growth habit, and short and aseptate hymenial setae (30–44 μm).

<p class="Body"><strong>Two new species of </strong><strong><em>Pilobates</em></strong><strong> (Acari, Oribatida, Haplozetidae) from Madagascar</strong></p>

Two new species of oribatid mites of the genus Pilobates (Oribatida, Haplozetidae) are described on the basis of adult specimens sampled from Andasibe-Mantadia National Park of eastern Madagascar. Pilobates staryi sp. nov. differs from Pilobates africanus Ermilov & Starý, 2020 by the presence of long tutoria, comparatively short interlamellar setae, minute and setiform notogastral setae, 15 pairs of notogastral setae including c3 on pteromorphs, elongate notogastral sacculi, and anterodorsal process on leg trochanters IV. Pilobates parastaryi sp. nov. differs from P. staryi sp. nov. by having long interlamellar setae, adanal setae ad1 and ad2 and anal setae an1 with curved tips, heavily sculptured notogaster, and well developed triangular ventrobasal tubercle on leg tibiae I. A revised generic diagnosis of Pilobates is presented.

A new species of Paratrigona Schwarz, 1938 from northeastern Brazil, with notes on the type material of Melipona lineata Lepeletier, 1836 (Hymenoptera: Anthophila: Apidae)

ABSTRACT A distinctive new species of the Neotropical stingless bee genus Paratrigona Schwarz from northeastern Brazil, previously considered as a variation within P. lineata by Camargo and Moure (1994), is described and illustrated. Paratrigona intermedia Oliveira, Madella-Auricchio & Freitas sp. nov. belongs to the lineata group. It is easily distinguished from its congeners by the pattern of body pubescence, especially by the absence of erect setae on the mesoscutum and disc of the mesoscutellum, and the presence of erect setae on the apical border of the mesoscutellum (dorsal and ventral surfaces) and sparse short erect setae on the upper 2/3 of the mesepisternum. The lectotype designation for Melipona lineata Lepeletier, 1836 is provided along with notes on its morphology and the concept of Paratrigona lineata is changed to differentiate it from the new species described here. Paratrigona lineata (Lepeletier, 1836), P. glabella Camargo & Moure, 1994 and P. incerta Camargo & Moure, 1994 are illustrated to facilitate comparisons with the new species. An updated key to the lineata species group, including the new species, is also provided. http://www.zoobank.org/urn:lsid:zoobank.org:pub:3FA139B8-1FDA-459A-8189-F3785AE25BF1 http://www.zoobank.org/urn:lsid:zoobank.org:act:9D6A8CD7-D8F6-44B2-81CF-E12C01FA0DCD

Two new species of Antomicron Cobb, 1920 (Nematoda: Leptolaimidae) from Jiaozhou Bay, China

ABSTRACT Two new free-living marine nematode species of the genus Antomicron Cobb, 1920 belonging to the family Leptolaimidae are described from the seabed sediment of Jiaozhou Bay of the Yellow Sea. Antomicron holovachovi sp. nov. is characterised by loop-shaped amphideal fovea; male with five straight tubular and 41 alveolar supplements; short cephalic setae; slightly curved slender spicule with cephalated proximal end and tapered distal end; and rectangular gubernaculum with a short dorsal caudal apophysis. Antomicron chinensis sp. nov. is particularly characterised by loop-shaped amphideal fovea; male with only alveolar supplements, without tubular supplement; slender and slightly inverted S-shaped spicule with cephalated proximal end and tapered distal end; and rectangular gubernaculum with a slender dorsal caudal apophysis. An updated identification key to species of the genus Antomicron is also provided. http://www.zoobank.org/urn:lsid:zoobank.org:pub:D7DB980D-4BD5-4966-8756-D7FC2A46DAAA http://www.zoobank.org/urn:lsid:zoobank.org:act:C3142083-6B72-4797-BE50-F8FFC412ACE4 http://www.zoobank.org/urn:lsid:zoobank.org:act:5393CA61-1BE5-4F3B-88AA-501B36472A04

A new species of Pereionotus (Amphipoda, Senticaudata, Phliantidae) from Pulau Tinggi, Sultan Iskandar Marine Park, Malaysia

A new species of Pereionotus Spence Bate & Westwood, 1861 from Pulau Tinggi, Sultan Iskandar Marine Park (SIMP) is described and the first record of the genus from Malaysia. It was collected from Kg. Tg. Balang, Pulau Tinggi, Johor, Malaysia (2°16'59.5"N, 104°07'21.9"E) and can be distinguished by having wide and dorsally truncate carinae of pereonites 2–7, maxillipedal palp as long as the outer plate, lacking additional robust seta in the middle of propodi of pereopods 1–4, and the absence of short robust setae on the anterodistal corner of merus and carpus of pereopods 6–7. An updated identification key for the 11 known species in the genus is also presented.

A new cypridopsine genus (Crustacea, Ostracoda) from Thailand

A new cypridopsine genus, Cyprettadopsis gen. nov., described here, is principally characterized by the reduced caudal ramus, the strongly serrated claw G2 of the antenna (A2), the A2 subquadrate terminal segment, the undivided penultimate segment of the second thoracopod (T2), the morphology of the third thoracopod bearing a distinctly separated terminal segment, the complete septa on the posteroventral margin and the incomplete septa on the anterior margin of both valves. Based on a combination of these characters, a new tribe, Cyprettadopsini trib. nov., is created in the subfamily Cypridopsinae Kaufmann, 1900 to accommodate this new genus, and one new species, Cyprettadopsis sutura gen. et sp. nov., is described as the type species. Apart from the above generic characters, the following features are also typical of the new species: the tiny needlepoint-like pores along the anterior and ventral margins of both valves, the remarkably large β-seta on the mandibular palp and the considerably short d2 seta on the T2. The presence of marginal septa in the new genus is a distinctive character and constitutes the first record of this feature within Cypridopsinae. The taxonomically relevant characters in the new taxon and related taxa are briefly discussed.

Redescription of the larva, and description of the nymphal and adult stages of Ornithodoros peruvianus Kohls, Clifford & Jones, 1969 (Acari: Argasidae).

The soft tick Ornithodoros peruvianus Kohls, Clifford & Jones, 1969 was described as a parasite of bats in Peru upon the examination of engorged larvae only. Recently, larvae of this tick species were reported on bats from northern Chile. However, the adult and nymphal stages of O. peruvianus have remained undescribed. This study aimed to redescribe the larva of O. peruvianus based on unfed specimens, and to describe nymphs, the male and the female of this species. Ticks were collected on the walls inside three caves in northern Chile. Two females laid eggs in the laboratory. Part of the unfed larvae was separated for morphological and morphometrical analyses, and the remaining specimens were fed upon laboratory mice in order to obtain subsequent nymphal and adult stages. The first nymphal stage (N1) moulted either to male or to a second nymphal stage (N2) without feeding. Obtained N2 moulted either to male or female after one meal. PCR amplification of tick mitochondrial 16S rRNA of specimens from the three caves revealed almost identical sequences. The unfed larva of O. peruvianus has an elongated idiosoma, and fringed setae cover the ventral surfaces of coxae, palps and tarsi. Nymph 1 has a thin integument covered by incipient mammillae and barely noticeable dorsal disks; it lacks cheeks and possesses few short setae on the basis capitulum. Nymph 2 has a pair of small cheeks and resembles adult stages in its tegumentary traits and capitulum. Adult stages exhibit developed cheeks (larger in females) without the capacity to completely cover the capitulum. Very small and low mammillae cover the surface of the dorsal idiosoma in adults. As this feature also occurs in other bat-associated soft ticks, regardless of their phylogenetic relatedness, small mammillae in bat soft ticks are suggestive of convergent evolution.

How Does the Male Penisfilum Enter the Female Copulatory Pore in Hangingflies?

Hangingflies are characterized by the interesting nuptial feeding behavior and unusual belly-to-belly hanging mating position. However, the mating behavior and the copulatory mechanism remain poorly known for Bittacidae, especially how the elongated male penisfilum enters the copulatory pore of the female. In this study, the mating behavior and copulatory mechanism of Terrobittacus implicatus (Huang and Hua, 2006) were investigated to reveal the functional morphology of hangingfly genitalia. The results show that the male provides a prey as a nuptial gift to the female and twists his abdomen about 180° to form a belly-to-belly hanging mating position. During the penisfilum-entering process, the male epandrial lobes clamp the female subgenital plate with the aid of the female abdomen swelling. Then the male locates the female copulatory pore through his upper branch of the proctiger and inserts his penisfilum into the female spermathecal duct in cooperation with the short setae on the groove of the proctiger. The female subgenital plate where the epandrial lobes clamp is strongly sclerotized and melanized. The copulatory mechanism of Terrobittacus is briefly discussed.

Taxonomic studies on the genus Glyphodes Guenee (Lepidoptera: Crambidae: Spilomelinae) from Karnataka, India

The specimens collected and reared to an adult stage on their respective hosts utilized to characterize the species of the genus Glyphodes based on morphological and genital characters of adults, revealed three species of the genus Glyphodes and were documented from Karnataka viz., Glyphodes caesalis Walker, Glyphodes pulverulentalis Hampson and Glyphodes vertumnalis Guenee on jack-fruit, mulberry and jasmine, respectively. These three species differ morphologically in having entire body green colour in G. vertumnalis, abdomen with oblique lateral stripes in G. pulverulentalis wherein, G. caesalis having sub-marginal black edged patch on costa with four spots. In genitalia, uncus greatly curved and beak shaped in G. vertumnalis, uncus slim and slightly curved in G. caesalis, whereas in G. pulverulentalis uncus long, narrow and slightly curved with short setae at apex.

Mouthpart morphology and food habits of a Pampean population ofCloeondipterum(Linnaeus, 1761) (Ephemeroptera: Baetidae)

Knowledge of the feeding habits of aquatic insects and assignation to different functional feeding groups contributes to a better comprehension of aquatic ecosystems. The feeding habits of larval stages (4–6 mm) ofCloeondipterum(Linnaeus, 1761) were studied through mouthpart morphology, gut content and were tested in food particle size preference experiments. The description of the mouthparts consisted in the dissection of them and their observation in an optical microscope. Gut content analysis was carried out by ventral dissection of the thorax to isolate the digestive tract. The content of each larva was homogenized, mounted on slides and observed under an optical microscope at 400× magnification with a graduated eyepiece. Food preference experiments consisted on offering fine particulate organic matter (FPOM) and coarse (CPOM) leaves ofLaurus nobilissimultaneously. Mouthparts are characterized by robust mandibles with well-developed and asymmetric molar surfaces and maxillae and labium with developed palps, with short setae. Gut content ofC.dipterumwas dominated by fine detritus represented by 76.9% (SD = 25.7) of the covered area. Also, in the food preference experiments was detected that FPOM consumption was greater than CPOM. Consequently, we consider that the larval stages ofC.dipterumare functionally classified as collectors-gatherers preferring fine particle size, and secondary scrapers for CPOM manipulation.

Three new rotundabaloghid mites (Acari: Uropodina) from Hong Kong

Three new species of the family Rotundabaloghidae are described from Hong Kong. Angulobaloghia staryi sp. nov. differs from the other AngulobaloghiaHirschmann, 1979 species in the shape and ornamentation of the genital shield of the female. Rotundabaloghia (Rotundabaloghia) hongkongensis sp. nov. has three pairs of short setae (St1, V2 and V6) on the ventral idiosoma, which is unique in the subgenus Rotundabaloghia (Rotundabaloghia)Hirschmann, 1975a. The long, robust and curved setae in the big ventral cavity of Depressorotunda (Depressorotunda) taurina sp. nov. is a character so far unknown in the subgenus Depressorotunda (Depressorotunda)Kontschan, 2010a.

Morphological ontogeny, ecology and some biological parameters of Achipteria nitens (Acari: Oribatida: Achipteriidae).

The morphological ontogeny of Achipteria nitens (Nicolet, 1855) from Crimea peninsula is redescribed and illustrated, and ecology and some biological parameters of this species are investigated. The larva of this species has short, thick and barbed setae in and of c-series, and anterior part of prodorsum reticulate, whereas the nymphs have most gastronotal setae of medium size and barbed, except for shorter c3, and shorter, thick and smooth p2 and p3. A key to the larva and nymphs of eight species of Achipteria Berlese, 1885 is provided.

A new species in the genus Acartia Dana, 1846 (Crustacea, Copepoda, Calanoida, Acartiidae) from the South Pacific coastal waters of Nadi Bay, Fiji.

A new species in the genus Acartia, Acartia nadiensissp. nov., is described from Fijian coastal waters. This species belongs to the subgenus Odontacartia based on the following morphological features: presence of a rostral filaments, a pointed process on the last prosomite, a serrated terminal spine on female P5, and the absence of a protrusion on the basis of the male right P5. This new species can be differentiated from its congeners by the combination of the absence of a spine on the first segment of the antennules, the short outer seta of female P5, and a medial spine on the exp-2 of the left male P5. Phylogenetic analyses using mitochondrial COI partial sequences show that the new species is distinct from its congeners.

A new free-living marine nematode species of the genus <i>Phanoderma</i> Bastian, 1865 (Enoplida: Phanodermatidae) from the East Sea, Korea

A new species of free-living marine nematode is described from intertidal sediments of the East Sea, Korea. Phanoderma koreense sp. nov. is characterized by the presence of well-developed pharyngeal and cephalic capsule, six inner labial sensilla present as minute papillae around with circular groove, long and slender spicules with 4-5 serrated distal end, located at the base of the precloacal supplement, a series of eight to nine stout and short setae on the ventral cloacal region and conico-cylindrical tail with two pairs of blunt setae. In this study, we provide taxonomic descriptions and illustrations of a new species by differential interference contrast microscope and a pictorial key to the valid species of Phanoderma Bastian, 1865. This is the first record of the genus Phanoderma in the East Sea, Korea.

Description of a new species of Dermoergasilus Ho & Do, 1982 (Copepoda: Ergasilidae) from the redbelly tilapia Coptodon zillii (Gervais) (Perciformes: Cichlidae) in Basrah, southern Iraq

A new species of Dermoergasilus Ho & Do, 1982 (Copepoda: Ergasilidae) parasitic on the gills of the redbelly tilapia Coptodon zillii (Gervais) from Basrah, southern Iraq, is described. Dermoergasilus cichlidus n. sp. is morphologically similar to D. longiabdominalis El-Rashidy & Boxshall, 2001 in the body length to width ratio, the swimming legs armature, the shape of the urosome and the small slightly spiniform seta on the exopodal segment of leg 5. However, the main differences are the presence of long setae on the endopod of leg 1 in D. cichlidus n. sp. (vs relatively short setae); the inner apical spine on the tip of the endopod of leg 1 being only slightly longer than the outer apical spine (vs inner apical spine about twice as long as the outer); the first interpodal sternite ornamented with spinules (vs interpodal sternites not ornamented); and the caudal rami and anal somite of equal length (vs caudal rami length c.2/3 of the length of the anal somite). Dermoergasilus occidentalis can be distinguished from D. cichlidus n. sp. by the relative length of the antennal segments, the absence of a minute terminal spine on the digital process of the caudal ramus and by differences in the mouth parts.

Sabatieria sinica sp. nov. (Comesomatidae, Nematoda) from Jiaozhou Bay, China

A new free-living marine nematode species of the genus Sabatieria was documented from the sediment of the Jiaozhou Bay, Qingdao, China, and it has been named Sabatieria sinica sp. nov. It is characterized by homogeneous cuticle without lateral differentiation, relatively short cephalic setae, spiral amphideal fovea with 2–2.25 turns; thick spicules with a mid constriction or joint, gubernaculum with a long straight dorso-caudal apophyses, and 6–7 prominent papillar precloacal supplements. This new species could be distinguished from other congener species by the combination of its characteristics: body size, length of cephalic setae, number of amphid turns, structures of spicules and gubernaculum, and type and number of precloacal supplements. An update dichotomous key is provided for nine species of pulchra group of Sabatieria including the new species.