Similsciophila Shi & Shih & Ren 2014, gen. nov.

• Main Authors: Shi, GuiFeng, Shih, ChungKun, Ren, Dong
• Format: Text
• Language: unknown
• Published: Zenodo 2014
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Limoniidae; Similsciophila; ren; Siberia
• Online Access: https://dx.doi.org/10.5281/zenodo.4328017; https://zenodo.org/record/4328017

Similsciophila gen. nov. Type species: Similsciophila singularis sp. nov. Species included: Similsciophila singularis sp. nov. and Similsciophila sinuata sp. nov. Diagnosis Body medium-sized, covered with long and dense pubescence. Mesonotum convex. Scutellum sharp and clearly projecting. Forewing Sc elongate, shorter than one-half of wing length; sc-r situated distinctly basal to Rs origin, arising near midway between h to Sc ending at margin; cell r distinctly large, longer than one-sixth of wing length; Rs furcated distad to fork of M 1+2; bRs longer than r-m; R 1 slightly curved; both R 1 and R 4+5 divergent terminally; R 4+5 arched near its mid-length; stem of M not developed and thin; M 1+2 furcated slightly distad to level of Sc ending. Tibiae and tarsi with short sparse setae. Etymology The generic name is derived from the Latin ( simil -), in reference to similar, and sciophila is from the generic name Mesosciophila . Remarks Based on the venation, Similsciophila gen. nov. is distinguished from Mesosciophilopsis Blagoderov, 1993 and Jurasciophila Li and Ren, 2009 by the following characters: wing longer and wider; cell r distinctly larger, and longer than one-sixth of wing length. The new genus is similar to the genus Paramesosciophilodes Zhang, 2007, but differs mainly by bRs longer than r-m. It also differs from Mesosciophilina Kovalev, 1985, Mesosciophilodes Rohdendorf, 1946 and Mesosciophila Rohdendorf, 1946 in that R 4+5 arched near its mid-length. Distribution China. Key to genera of mesosciophilid gnats 1. Cell r distinctly small, equal to or shorter than one-sixth of wing length.......... 2 - Cell r distinctly large, longer than one-sixth of wing length............................... 3 2. bRs equal to or shorter than r-m.................. Mesosciophilopsis Blagoderov, 1993 - bRs significantly longer than r-m........................ Jurasciophila Li and Ren, 2009 3. R 4+5 arched near its mid-length.......................................................................... 4 - R 4+5 slightly arched or almost linear near its mid-length................................... 5 4. bRs equal to or shorter than r-m................... Paramesosciophilodes Zhang, 2007 - bRs longer than r-m........................................................ Similsciophila gen. nov. 5. Cross-vein r-m converges with M 1+2 at obtuse angle......................................... 6 - Cross-vein r-m converges with M 1+2 at right angle....................................................................................................................... Mesosciophilina Kovalev, 1985 6. R 2+3 straight, almost perpendicular to R 4+5...... Mesosciophilodes Rohdendorf, 1946 - R 2+3 oblique, cross with R 4+5 at obtuse angle........ Mesosciophila Rohdendorf, 1946 : Published as part of Shi, GuiFeng, Shih, ChungKun & Ren, Dong, 2014, A new genus with two new species of mesosciophilids from the Middle Jurassic of China (Diptera: Nematocera: Mesosciophilidae), pp. 1147-1158 in Journal of Natural History 49 (19) on pages 1149-1150, DOI: 10.1080/00222933.2014.951085, http://zenodo.org/record/4005909 : {"references": ["Blagoderov VA. 1993. Dipterans (Mesosciophilidae) from the Lower Cretaceous of Transbaykal. Paleontological J. 27: 123 - 130.", "Li TT, Ren D. 2009. A new fossil genus of Mesosciophilidae (Diptera, Nematocera) with two new species from the Middle Jurassic of Inner Mongolia, China. Prog Nat Sci. 19: 1837 - 1841. doi: 10.1016 / j. pnsc. 2009.06.011", "Zhang JF. 2007. New mesosciophilid gnats (Insecta: Diptera: Mesosciophilidae) in the Daohugou biota of Inner Mongolia, China. Cretaceous Res. 28: 297 - 301. doi: 10.1016 / j. cretres. 2006.05.007", "Kovalev VG. 1985. Infraorder Bibionomorpha. In: Kalugina NS, Kavalev VG, editors. Dipterous insects of Jurassic Siberia. Moscow: Nauka; p. 113 - 189. Russian.", "Rohdendorf BB. 1946. The evolution of the wing and phylogeny of Oligoneura (Diptera, Nematocera). Trudy Paleontologicheskogo Instituta. Akademii Nauk SSSR. 13: 1 - 108. Russian."]}