Rhaphium borisovi Negrobov, Barkalov & Selivanova, sp. nov.

• Main Authors: Negrobov, Oleg P., Barkalov, Аnatolii V., S, Оlga В., Va, E L I Va N O
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Dolichopodidae; Rhaphium; Rhaphium borisovi; Taimyr
• Online Access: https://doi.org/10.5281/zenodo.6174339; http://treatment.plazi.org/id/03CACE731E43CB1300BDFF7D3E38FC2F

Rhaphium borisovi Negrobov, Barkalov & Selivanova sp. nov. (Figs. 2 A–D) Type material. HOLOTYPE, 3 labeled: Russia: Taimyr Reserve, Ary-Mas field station, left bank of river Novaya, 14 m a.s.l., inundated terrace, 72.5°N, 101.94°E, 10–12.VII.2010, coll. A. Barkalov (SZM). PARATYPES : Russia: 6 3, same data as holotype. Diagnosis . This species is similar to R. gruniniani Negrobov, 1979, but differs by yellow apical half of fore coxa and tips of mid and hind coxae; subequal lengths of hind tarsomeres 1 and 2, and broad inner lobe of cercus. Rhaphium gruniniani has entirely black coxae, hind basitarsus slightly shorter than hind tarsomere 2 and inner lobe of cercus narrow. Description . Male . Body length: 2.4–2.8 mm, wing length: 2.5–2.6 mm. Head : Face silvery-white, with parallel sides, in middle slightly wider than width of postpedicel (5/4). Proboscis dark-brown; palpus black, with black hairs and whitish pollinosity. Frons green, grey pollinose. Antenna (Fig. 2 A) black, postpedicel elongated triangle, 8X longer than wide near base; stylus unmodified, not broadened apically, with short hairs, shorter than postpedicel is wide at base, apical. Ratio of postpedicel length to width and stylus length: 40/5/4. Lower postocular setae white. Thorax : Metallic green, scutum with bronze tinge; pleura grey pollinose; proepisternum with group of short pale-yellow hairs; 4 pairs of strong dorsocentral setae preceded by 1 short seta. Acrostichal setae distinctly developed arranged in two rows. Scutellum with 2 strong black lateral setae 2 short hairs. Legs : Largely yellow, with dark base of fore coxa, mid and hind coxae (except tips), fore femur on dorsal and anterior sides, fore and hind tarsi, mid and hind tibiae and tip of hind femur. Coxae with white hairs, group of light setae on top of mid coxa, not forming spur; hind coxa with 1 strong white seta and fine hairs. Femora without long hairs; mid and hind femora with 1 short preapical seta. Fore tibia with 2 short anterodorsal, 1 posterodorsal and 1 ...