Species of the genus Ensiferella Andersson from China, with a key to world species (Diptera, Chloropidae) Author Liu, Xiaoyan Author Yang, Ding text Zootaxa 2012 3207 54 62 journal article 45349 10.5281/zenodo.280197 47f66fd8-4d1f-4132-a7f5-76f29871a917 1175-5326 280197 Key to the species of genus Ensiferella 1. Ocellar triangle occupying entire frons with broad anterior apex, brown, brilliant with blue-green or multicolored metallic shimmer.................................................................................................... 2 - Ocellar triangle with almost parallel posterior side margins and pointed anterior apex, black without metallic shimmer. If the front part of ocellar triangle rounded, then ocellar triangle yellow, shiny.......................................... 6 2. Scutum yellow with black marking; thoracic pleuron shiny, yellow with black spots................................. 3 - Scutum shiny black or brown with yellow or black strips; thoracic pleuron black, only katepisternum maybe with a yellow spot................................................................................................ 4 3. Scutum with large black marking, yellow spot anterior to scutellum nearly square, distal margin flat...................................................................................................... E. ceylonica Andersson - Scutum with 3 broad black stripes, which are fused with each other entirely on distal half of scutum, yellow spot anterior to scutellum not square, distal margin emarginated............................................. E. shibuyai Kanmiya 4. Scutellum black; thoracic pleuron without yellow spot......................................... E. iridifrons (Frey) - Scutellum yellow; thoracic pleuron with a yellow spot on katepisternum......................................... 5 5. Proboscis black; surstylus connected with epandrium, surstyllar apodeme with a long bifurcation attached to inner fork of hypandrium distally.................................................................... E. formosa (Becker) - Proboscis yellow; surstylus not connected with epandrium, spinous processes on inner lateral margin elongate and incurved..................................................................................... E. longispina sp. nov. 6. Ocellar triangle yellow with broad anterior apex; palpus yellow; scutum yellow with 3 shiny black stripes.................................................................................................... E. vittiger (Malloch) - Ocellar triangle black with pointed anterior apex; palpus black; scutum black or yellow with 3 shiny black stripes......... 7 7. Scutellum entirely black................................................................................ 8 - Scutellum brown except middle 1/3 yellow................................................................ 10 8. Ocellar triangle with a pronounced in-depth medial groove; abdomen entirely brown; fore femur black except distal portion yellow.............................................................................................. 9 - Ocellar triangle without medial groove; abdomen partly yellow; fore femur entirely yellow.......... E. gladiolus (Becker) 9. Abdomen brown, tergites 1–3 with a large triangular yellow spot; surstylus spoon-shaped, basally broad, round............................................................................................... E. kanmiyai Nartshuk - Abdomen shiny black, basal portion with a small bright spot; surstylus with a claw, directed to midline..................................................................................................... E. obscurella (Becker) 10. Fore tibia and tarsus yellow, except fore tarsomeres 4–5 brown; cercus nearly square; postgonite distinctly incurved distally with pointed apex.................................................................... E. sabroskyi Nartshuk - Fore tibia and tarsus entirely brown; cercus semicircular; postgonite slightly incurved distally with blunt apex.................................................................................................. E. elongata sp. nov.