Two new species of the orientalis group of Rheocricotopus (Psilocricotopus) from China (Diptera: Chironomidae)

Rheocricotopus (Psilocricotopus) calviculus sp. n. and R. (P.) villiculus sp. n. from China are described as male imagines. The species are closely related to the previously described R. (P.) orientalis Wang forming a new group, the orientalis group, which eventually may deserve the rank of subgenus or even genus. The group is distinguished by lacking a humeral pit, numerous sensilla clavata on third palpomere, cuneiform wings, no or few setae on squama, long legs, banded abdomen, very long inferior volsella, gonocoxite with apical extensions, and gonostylus with a median triangular projection.     

A New Hairy-Winged Pseudorthocladius (Diptera: Chironomidae) from Luxemburg

Pseudorthocladius cristagus sp. n. is described as male imago. It differs from all other members of the genus Pseudorthocladius v. d. Wulp except P. pilosipennis Brundin by having setae on the wing membrane. It can be separated from P. pilosipennis by having a gonostylus with a prominent crista dorsalis and an outer corner or heel. The species was collected with emergence traps from a helocrene spring in northern Luxemburg.     

New species and records of Neotropical Cardiocladius Kieffer, 1912 (Diptera: Chironomidae,Orthocladiinae)

Cardiocladius moreloensis sp. n. is described and figured based on adult males collected in Morelos State in Mexico. Males of C. brasiliensis Oliveira, 1949 and C. travassosi Oliveira, 1951 are redescribed and figured based on new material from São Paulo State in Brazil. The generic diagnosis is expanded, and a key to the males of the Neotropical Cardiocladius species is presented.

http://zoobank.org/urn:lsid:zoobank.org:act:EE8B2267-3362-4A1F-BED6-0A1E35D7D480     

中国拟枝角摇蚊属一新种记述（双翅目：摇蚊科）

记述拟枝角摇蚊属Paracladopelma 1新种:短鞭拟枝角摇蚊P.demissum sp.nov.。该新种触角比AR低,为0.60;肛尖具中肋;第9背板后缘肩形;第9背板带V型;上附器远端膨大,向外侧成三角形突起状,亚顶端具2根大刚毛,且内侧密被小刚毛;抱器端节两侧平行,中部内弯。模式标本存放于南开大学生命科学学院摇蚊学研究室。     

Mariambera,a new genus of Orthocladiinae from Brazil (Insecta: Diptera,Chironomidae)

The genus Mariambera is erected based on the males of M. amazonica n. sp. from Amazonas and M. mariae n. sp. from Minas Gerais. The new genus is easily recognized by the distinctive anal point which has a rounded dorsal lobe with microtrichia and a triangular ventral lobe with very strong, marginal setae, in combination with bare eyes and wing membrane, squama with setae, antenna without strong apical seta, and apparently few, short, very weak, hair-like acrostichals in anterior 1/3 of scutum.     

A new species of Dicrotendipes (Diptera: Chironomidae) from Costa Rica

The adult male of Dicrotendipes baru is described from the Dominical area of southwestern Costa Rica. The species is characterized by its elongate club-like superior volsella. This species represents the third member of the genus known from Costa Rica.     

Two new species of Olecryptotendipes Zorina, 2007 from China (Diptera, Chironomidae)

Two new species, Olecryptotendipes exilissp. n. and Olecryptotendipes melasmussp. n. are described and illustrated as males and Chinese males of Olecryptotendipes lenzi are re-examined. A key to all known males of Olecryptotendipes is provided.     

Two new species of Bryophaenocladius Thienemann, 1934 (Diptera, Chironomidae) from China

Two new species of Bryophaenocladius Thienemann, 1934, Bryophaenocladius mucronatussp. n. and Bryophaenocladius parictericussp. n. are described and illustrated as males. A key to male imagines of the genus from China is presented.     

New species of Oukuriella (Diptera: Chironomidae) from Costa Rica

The males of three new species of Oukuriella Epler are described from Costa Rica. The genus had been previously recorded only from South America. Oukuriella annamae sp. nov. has genitalia similar to O. albistyla Epler, but differs in having transverse bands on abdominal segments In, IV, VI and VII, a lower AR, no humeral setae and fewer dorsocentral setae. Oukuriella costaricense sp. nov. differs from other described species in the genus by its brown abdomen, unnotched posterior margin of tergite IX and distinctive superior volsella, with its sharply bent, thin upper arm directed medially, and digitus small and directed caudad. Oukuriella rushi sp. nov. has apices of femora tipped with brown, a brown abdomen and distinctive superior volsella, with upper arm shorter and broader, and digitus longer then O. costaricense. The female of Oukuriella costaricense is also described. This is the first female described for the genus. Based on male and female genitalia, Oukuriella is closely related to Epedilum Townes and Zavreliella Kieffer. A key is provided to separate the males of the six described species.     

中国拟毛突摇蚊属一新种（双翅目：摇蚊科）

记述了采自中国西藏自治区的拟毛突摇蚊属1新种:三叉拟毛突摇蚊Paratrichocladius tridens sp.nov..该种与本属已知种的主要区别为:下附器发达并向外延伸,顶端圆形;阳茎内突色深部分明显骨化,呈三叉状,抱器端节细长,顶端有一小突状的业端背脊.     

中国真开氏摇蚊属一新种及一新记录种记述（双翅目：摇蚊科）

记述真开氏摇蚊属Eukiefferiella Thienemann 1新种:盖真开氏摇蚊E. celata sp. nov.和1种中国新记录种: 翘叶真开氏遥蚊E. brehmi Gouin, 1943;提出兵库真开氏摇蚊E. togaeuquinta Sasa & Okazawa, 1992为翘叶真开氏摇蚊 E. brehmi Gouin,1943的新异名。     

Six new and two newly recorded species of Chironomidae (Insecta: Diptera) in Korea

Adult chironomids were collected by light trap operations, sweeping grasses with insect nets, and aspiration of light‐attracted adults at various localities. All collected specimens were slide‐mounted and identified. Six species new to science were found and named: Rheotanytarsus pseudopentapoda n. sp., Cricotopus byeonsanensis n. sp., Cricotopus parajogantertius n. sp., Limnophyes bukhandecimus n. sp., Limnophyes simensis n. sp. and Orthocladius jeongnungensis. Two species, Ainuyusuroka tuberculatum (Tokunaga) and Pseudosmittia nishiharaensis Sasa and Hasegawa, are found for the first time in Korea. All species are fully described with illustrations. This is the first report of the genus Ainugusurika in Korea.     

A review of Rheocricotopus (Psilocricotopus) chalybeatus species group from China,with the description of three new species (Diptera,Chironomidae)

The Rheocricotopus (Psilocricotopus) chalybeatus species group from China is reviewed. Three new species, R. (P.) brochus sp. n., R. (P.) rotundus sp. n. and R. (P.) serratus sp. n. are described as adult males. R. (P.) imperfectus Makarchenko & Makarchenko, 2005, R. (P.) robacki (Beck & Beck, 1964) and R. (P.) valgus Chaudhuri & Sinharay, 1983 are recorded from China for the first time and annotated. The diagnosis for the species group is emended and a key to adult males of the species group in China is presented.     

Sternopygus castroi,a new species of Neotropical freshwater electric fish,with new synapomorphies to the genus (Sternopygidae: Gymnotiformes: Teleostei)

Sternopygus castroi n. sp. is described as a new species of sternopygid Neotropical freshwater fish from the Rio Cuieiras, tributary of Rio Negro, Amazonas State, Brazil. It differs from the other species of the genus by a combination of characters. Three new synapomorphies for Sternopygus are reported. Only Sternopygus species present a membranous integumental subopercular fold originating postero-ventrally in the opercular region, running anteriorly to the isthmus region. In Sternopygus, the membranous opercular opening is wide and S-shaped (wide but fleshy in Gymnotus). In Sternopygus there is also a medial cephalic fleshy fold at the ventral margin of the opercular membrane, directed forward and ventrally to the isthmus, surrounding the anal pore anteriorly, just behind the subopercular flap.     

Identification of instars and species in some larval Polypedilum (Polypedilum) (Diptera: Chironomidae)

Instars II and III of Polypedilum aviceps Townes, Polypedilum convictum (Walker), and Polypedilum illinoense (Malloch) can be identified to species by associating them with instar IV because key taxonomic characters remain relatively unchanged from instar to instar. Instars I cannot be identified to species or genus unless they are associated with older, identifiable larvae reared from the same egg masses. No single character evaluated on slide material can be used to clearly separate instars in all three species. Larvae of P. aviceps can be separated into instars based on any four of seven characters; P. convictum by either of two characters; and, P. illinoense by a combination of two characters. Changes in structures of instars II, III, and IV are described for all three species. Growth ratios for some structures are compared and discussed with regard to Dyar's Rule.     

A new species of Pelomus Reiss, 1989 (Diptera: Chironomidae: Chironominae) from the Neotropical Region,with emendation of the generic diagnosis

A new species of Pelomus Reiss, 1989 Reiss, F. 1989. ‘Pelomus gen. nov., ein weiterer potamobionter Vertreter des Harnischia-Komplexes aus dem Amazonasbecken (Diptera, Chironomidae)’. Acta Biologica Debrecina Oecologia Hungarica, 2: 305–314.  [Google Scholar] (Diptera: Chironomidae: Chironominae), P. sophiae sp. n., is described and figured as male, pupa and larva. Diagnoses for male and pupa of the genus are emended. The larvae, reared in the laboratory to obtain all life stages, were collected on bottom sand of reservoir and ponds, in southeast Brazil.     

The identity of Dactylocladius commensalis (Diptera: Chironomidae) revealed

A new dipteran species, Parapsectra wagneri sp. n. (Chironomidae), is described from emergence traps on Breitenbach, Schlitz, Germany. It differs in antennal ratio and characteristics of the genitalia from the three known species.     

Two new species of Stenochironomus Kieffer (Diptera,Chironomidae) from Zhejiang,China

Two new species of Stenochironomus Kieffer (Diptera: Chironomidae: Chironominae), Stenochironomus brevissimus sp. n. and Stenochironomus linanensis sp. n., are described from China and the male imagines are illustrated. Stenochironomus brevissimus sp. n. can be separated from the so far known species by having very short and small, spatulate superior volsella with two long setae, whereas Stenochironomus linanensis sp. n. is easily separated from the other species of Stenochironomus by the following characters: wings transparent, body yellow, superior volsella finger-like, with nine long setae, elongated inferior volsella with four long setae and one well developed terminal spine; tergite IX with 10−15 long setae medially. A key to the males of Stenochironomus occurring in China is given.