Difference between revisions of "Rhynchopsilopa"
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Ordo: Diptera
Familia: Ephydridae
Name
Rhynchopsilopa Hendel, 1913 – Wikispecies link – Pensoft Profile
- Rhynchopsilopa Hendel 1913[1]: 96. Type species: Rhynchopsilopa magnicornis Hendel 1913[1], original designation. –Wirth 1968[2]: 37–46 [review]. –Cogan and Wirth 1977[3]: 330 [Oriental catalog]. –Freidberg and Mathis 1985[4]: 13–20 [feeding habits].
- Lissodrosophila Okada 1966[5]: 45. Type species: Lissodrosophila longicornis Okada 1966[5], original designation. –Cogan and Wirth 1977[3]: 330 [synonymy].
Diagnosis
Small to moderately small shore flies, body length 1.7–2.8 mm; microtomentum generally sparse or lacking, cuticle appearing subshiny to shiny; mostly dark blue to black species.
Head in lateral view with antenna inserted at anterodorsal corner of head; frons conspicuously wider than long, often lenticular; a single, well-developed, proclinate fronto-orbital seta (sometimes an additional, distinctly shorter proclinate setula is present posteriad); reclinate seta and pseudopostocellar setae lacking or, in the latter case, very weakly developed; both medial and lateral vertical setae well developed; ocellar seta well developed, subequal in length to lateral vertical seta, proclinate, almost parallel; vertex convex; posterior ocelli situated immediately before convex vertex, ocelli forming an isosceles triangle. Antenna very elongate, pendant; scape exerted, oriented dorsally to anterodorsally; pedicel oriented anteroventrally, moderately elongate, lacking a prominent, well-developed dorsoapical seta; basal flagellomere pendant, very elongate, sometimes longer than face height; arista with 7–10 dorsal rays. Face depressed, mostly plain, lacking pits, transverse microrugosity or striae, bearing a sharp epistoma; a well-developed facial seta lacking; palpus whitish yellow to brown; proboscis elongate, longer than eye height, forming a well-sclerotized tube.
Thorax generally convex, dark blue to black, with microtomentum sparse to lacking; supra-alar seta absent; prescutellar acrostichal seta well developed; only posteriormost dorsocentral seta well developed; scutellum conspicuously wider than long, posterior margin broadly rounded, disc sparsely setulose; basal scutellar seta at most about 1/2 length or less than apical seta; anepisternum with 2 large setae. Wing mostly hyaline; crossveins not darkened; vein R2+3 usually extended to costal margin, lacking stump vein; R stem vein bare of setulae dorsally. Knob of haltere yellow to tan. Legs yellow to dark brown; forebasitarsus yellow to tan, only apical 1–2 tarsomeres dark brown.
Abdomen generally convex, bare of microtomentum, shiny, blackish; tergites 3–4 long, 5th tergite very short and lacking prominent, dorsally erect setae along posterior margin. Male terminalia: epandrium in posterior view as an inverted, rounded U (open ventrally), in lateral view generally elongate, usually thin to very thin, often slightly wider subventrally; cercus in posterior view thinly lunate to hemispherical; presurstylus, if present, short, no more than ½ length of postsurstylus, tapered to point ventroapically, apex bearing setulae, often greatly reduced or lacking; postsurstylus longer than wide, tapered to a ventral point, often with sinuous or curved margins; subepandrial plate usually bar-like, attenuate medially; pregonite bearing short setulae; aedeagus longer than wide, with sclerotized portion deeply bifurcate, appearing as 2 ventral extensions; phallapodeme long and narrow, in lateral view with a rod-like keel; hypandrium in lateral view moderately deep, pocket-like, or very shallow, nearly flat.
Key to species of Rhynchopsilopa from China
Taxon Treatment
- Zhang, J; Yang, D; Mathis, W; 2012: A review of the species of Rhynchopsilopa Hendel from China (Diptera, Ephydridae) ZooKeys, 216: 23-42. doi
Other References
- ↑ 1.0 1.1 Hendel F (1913) Acalyptrate Musciden (Dipt.) II. In: H. Sauter’s Formosa-Ausbeute. Supplementa Entomologica 2: 77-112.
- ↑ Wirth W (1968) The genus Rhynchopsilopa Hendel (Diptera: Ephydridae). Annals of the Natal Museum 20: 37-46.
- ↑ 3.0 3.1 Cogan B, Wirth W (1977) Family Ephydridae. In: Delfinado M Hardy D (Eds). A catalogue of the Diptera of the Oriental Region. Volume III. Suborder Cyclorrhapha (excluding Division Aschiza). University Press of Hawaii, Honolulu: 321-339.
- ↑ Freidberg A, Mathis W (1985) On the feeding habits of Rhynchopsilopa. Entomophaga 30 (1): 13-21.
- ↑ 5.0 5.1 Okada T (1966) Diptera from Nepal, Cryptochaetidae, Diastatidae, and Drosophilidae, Bulletin of the British Museum (Natural History), Entomology, supplement, 6: 1–129.
