Lygistorrhina (Lygistorrhina) Skuse 1890
Creators: name: Blagoderov, Vladimir
name: Ollerton, Jeff
name: Whittington, Andrew
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Keroplatidae
Lygistorrhina

description: Key to the species of subgenus Lygistorrhina (Lygistorrhina) Skuse, 1890
1. Wing membrane hyaline................................................................................ 2
-. Wing membrane with spots or conspicuously darkened....................................................... 7
2. Base of CuA (position) conspicuously proximad of R 1 tip level................................................. 3
-. Base of CuA (position) at the R 1 tip level or distad of it....................................................... 5
3. R 5 bare.............................. Lygistorrhina indica Stebner & Grimaldi in Stebner et al., 2017 [India, Eocene]
-. R 5 setose............................................................................................ 4
4. Median ocellus smaller than lateral; antenna pale; basal flagellomeres as long as wide, hind femur and tibia darkened on apical third........................ Lygistorrhina edwardsina Grimaldi & Blagoderov, 2001 [Uganda, Kenya, Tanzania, Zaire]
-. Median ocellus equal to lateral; antenna dark; basal flagellomeres 2× as long as wide, hind femur and tibia entirely dark brown............................................................. Lygistorrhina magna Matile, 1990 [Zaire]
5. Sc free; R 5 bare; abdomen with pale basal spots or bands on segments 2–6.............................................................................................. Lygistorrhina nassreddinei Matile, 1979 [Grande Comore]
-. Sc ends on Costa; R 5 setose; abdomen unicolorous........................................................... 6
6. Median ocellus equal to lateral; Costa extends to 2/3 the distance between R 5 and M 1; hind femur entirely dark.................................................. Lygistorrhina austroafricana Blagoderov, Papp & Hippa, 2013 [South Africa]
-. Median ocellus smaller than lateral; Costa extends to half the distance between R 5 and M 1; hind femur darkened on apical third.................................................................. Lygistorrhina woodi, sp. nov. [Yemen]
7. Pigmented spot in cubital cell absent...................................................................... 8
-. Pigmented spot in cubital cell present.................................................................... 11
8. Flagellum unicolorous................................................................................. 9
-. Flagellum with pale and dark bands...................................................................... 10
9. Cell r1 and apical 2/5 of the wing evenly infuscate; Sc ends on Costa; abdomen unicolorous................................................................................... Lygostorrhina carayoni Matile, 1986 [New Caledonia]
-. Wing membrane with two greyish spots in the middle and at the tip of the wing; Sc ends free; abdomen with pale basal bands on segments 3–6................................... Lygistorrhina insignis Skuse, 1890 [Australia: New South Wales]
10. Flagellum with flagellomeres 5–6 and 12 yellow (flagellomere 13 brown); abdomen with pale basal bands on segments 2–4; M 1 and M 3+4 curved back....................................... Lygistorrhina hamoni Matile, 1996 [Côte d’Ivoire]
-. Flagellum with flagellomeres 5–6 and 12–13 yellow; abdomen with pale basal bands on segments 2–6; M 1 and M 3+4 conspicuously sinusoid..................................... Lygistorrhina legrandi Matile, 1990 [Gabon, Central African Republic]
11. Tip of the wing solidly infuscate; abdomen unicolorous..................... Lygistorrhina fijiensis Evenhuis, 2008 [Fiji]
-. Infuscate tip of the wing with hyaline spots; abdomen with pale bands or spots................................... 12
12. Fore coxa yellow; M 1 evenly curved back; abdomen with pale basal bands on segments 2–5................................................................................... Lygistorrhina pictipennis Okada, 1937 [Japan: Honshu]
-. Fore coxa at least partly brown; M 1 and sometimes M 3+4 sinusoid; abdomen with pale basal band on segment 6.......... 13
13. Abdomen with pale basal band on segments 4–6, flagellomeres with two or more prominent dorsal setae................................................................................ Lygistorrhina pentafida Papp, 2005 [Thailand]
-. Abdomen with pale basal band on segments 2–6; flagellomeres without prominent dorsal setae...................... 14
14. Flagellomeres 5–8 and 11–13 black, remaining yellow; basal flagellomeres at least 1.5× as long as wide; fore basitarsus slightly longer than fore tibia.................................................. Lygistorrhina chaoi Papp, 2002 [Taiwan]
-. Flagellomeres 3–4 and 8–14 black, remaining yellow; flagellomeres, except apical one as long as wide; fore basitarsus almost twice as long as fore tibia.............................. Lygistorrhina cincticornis Edwards, 1926 [Malaysia: Sarawak]
description: Published as part of Blagoderov, Vladimir, Ollerton, Jeff & Whittington, Andrew, 2023, A new species of Lygistorrhina (Lygistorrhina) Skuse, 1890 (Diptera: Keroplatidae, Lygistorrhininae) with a key to the subgenus, pp. 151-158 in Zootaxa 5361 (2) on page 156, DOI: 10.11646/zootaxa.5361.2.1, http://zenodo.org/record/10149048