Cordilura richterae Ozerov et Krivosheina, 2015

Ozerov, A. L. & Krivosheina, M. G., 2020, A review of the genus Cordilura Fallén, 1810 (Diptera: Scathophagidae) of Russia, Russian Entomological Journal 29 (4), pp. 439-480 : 468

Cordilura richterae Ozerov et Krivosheina, 2015

Figs 98–100.

richterae Ozerov, Krivosheina, 2015: 491 ( Cordilura ). Type-locality: Iturup I., Rybaki (45.207ºN 147.848ºE) ( Russia, Sakhalin Oblast).

REMARK. This species was known from the type-locality only.

MATERIAL EXAMINED. Sakhalin Oblast: Kunashir I., Dubovoe (43.766ºN 145.499ºE), 10. VI .1973 , Ermolenko (2 ♂♂, ZISP); Kunashir I., Lake Lagunnoe (44.060ºN 145.759ºE), 18. VI . 1968 , Nartshuk (2 ♂♂, ZISP).

DIAGNOSTIC DESCRIPTION. Male. Body-length 4.8–7.2 mm. Head. Frontal vitta yellow, whitish dusted; fronto-orbital plate whitish dusted, yellow completely or blackish in upper half and yellow in lower half. Face, parafacial and gena yellow, whitish dusted. Postcranium black, delicatly greyish dusted. 2 orbital and 2–3 frontal setae present. Antenna yellow. Postpedicel approximately 2 times as long as wide. Arista yellow basally and black apically, plumose in basal half, the longest hairs approximately equal to the width of postpedicel. Palpus yellow. Thorax black, scutum subshining, thoracic sclerites greyish dusted. Acrostichals setulose in two rows, dorsocentrals 3+3 (including short scapular seta), intra-alars (0–1)+1, supra-alars 1+2, 2 postpronotals. Scutellum with a pair of strong discal setae and a pair of apical setulae. Legs. Ground-colour yellow. Coxae of mid and hind legs black, mid and hind tibiae darkened. Wing tinged with brownish; veins pale brown. Vein R with 4–5

1

setulae of dorsal surface. Abdomen black, delicately greyish dusted. Sternite 4 trapezoid, slightly longer than wide. Sternite 5, epandrium and surstyli as in Figs 98–100.

Female unknown.

DISTRIBUTION. Russia: Sakhalin Oblast.