Risa flavicoxa Krivosheina et Ozerov, 2019
publication ID |
https://doi.org/ 10.15298/rusentj.28.2.14 |
DOI |
https://doi.org/10.5281/zenodo.13165066 |
persistent identifier |
https://treatment.plazi.org/id/03BE4509-8520-FFD6-AE41-23B5FDD0FC86 |
treatment provided by |
Felipe |
scientific name |
Risa flavicoxa Krivosheina et Ozerov |
status |
sp. nov. |
Risa flavicoxa Krivosheina et Ozerov View in CoL , sp.n.
Figs 1 View Figs 1–3 –4.
MATERIAL. Holotype ♂, Turkmenistan: Ishkak , 45 km SW of Kizyl-Ayak [ca. 37.4372°N 65.0267°E], 19.VIII.1973, Nartshuk ( ZISP). Paratypes 2 ♂♂, 2 ♀♀, same labels as holotype ( ZISP and ZMUM) GoogleMaps .
DESCRIPTION. Male. Length of body 1.2–1.4 mm. Length of wing 1.0– 1.3 mm.
Head. Frontal vitta and fronto-orbital plate from yellow to blackish, whitish dusted; ocellar triangle black, shining, reaching lunule; face dark brown or blackish, shining, with a rounded protuberance at middle; gena and postcranium blackish, shining. Setae: 3 short fronto-orbitals, 1 short ocellar, no postocellar, 1 inner vertical, 1 outer vertical. Antenna yellow, only postpedicel dorsally darkened; postpedicel conical apically, about as long as wide; arista yellow, bare. Palpus yellow, filiform. Length of proboscis 0.9–1.1 mm.
Thorax completely black, faintly greyish dusted. Acrostichals as hairs in two irregular rows, 1 postpronotal, 2 notopleurals, 1 supra-alar, no intra-alars, 1 postalar and 1 dorsocentral. Katepisternum with strong seta. Scutellum greyish dusted, with a pair of strong basal scutellar and a pair of strong apical scutellar setae.
Legs yellow in ground colour, only femora usually blackish medially.
Wing whitish with whitish yellow veins. Halter whitish.
Abdomen black, faintly greyish dusted. Male sternite 6 bifurcate, with conical lateral lobes ( Fig. 1 View Figs 1–3 ); epandrium oval, truncate posteriorly, with short narrow surstyli and small protuberance below each of them ( Figs 2, 3 View Figs 1–3 ). Female sternite 8 as in Fig. 4.
DIAGNOSIS. The new species differs from all known Central Asian species of Risa by the structure of male epandrium. The other diagnostic characters are given in the key. The structure of epandrium of the new species is similar to those of A. salsolae but the latter species differs in greenish reflection of thorax, black palpus and fore coxa [ Mathis et al., 2017, Fig. 2 View Figs 1–3 ].
DISTRIBUTION. Turkmenistan.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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