Shilovia Makarchenko

Makarchenko, Eugenyi A., Semenchenko, Alexander A. & Palatov, Dmitry M., 2020, Review of the genus Shilovia Makarchenko (Diptera: Chironomidae: Diamesinae Boreoheptagyiini) from the mountains of Central Asia, with morphological description and DNA barcoding of known species, Zootaxa 4895 (2), pp. 196-210 : 207-208

Key to the known species of Shilovia Makarchenko

Males

1. Antenna with 5 flagellomeres. Legs spotted: basal 1/3 or half of femur and tibia yellow, distal 2/3 or half brown; ta 1 –ta 5 brown ( Fig. 2 ). Dorsocentrals in anterior part of mesonotum not reach preanal setae ( Fig. 4 ). Posterior margin of tergite IX concave; gonostylus in subapical part along outer edge with rounded extension; inferior volsella and basal lobe of gonocoxite present; sternapodeme long and narrow ( Figs. 5, 7–9 , 21, 24–25 ) …................................ Shilovia rara Makarchenko

– Antenna with 6 flagellomeres. Legs not spotted: at least basal 3/4 of femur yellowish or yellow, distal 1/4 dark brown; tibia, ta 1 –ta 5 dark brown ( Fig. 16 ). Dorsocentrals in anterior part of mesonotum reach preanal setae ( Fig. 18 ). Posterior margin of tergite IX straight or slightly concave; gonostylus another shape, in subapical part along outer edge without rounded extension; basal lobe of gonocoxite reduced; sternapodeme wide basally and narrow distally ( Figs. 14–15 , 19–20 , 22–23, 26–27 ).... … 2

2. Dorsocentrals in posterior part converge with acrostichal setae ( Fig. 12 ). Postnotum with setae ( Fig. 13 ). Wing with setae on Cu and An ( Fig. 10 ). Gonostylus length/gonostylus width 2.86–3.67..................... … Shilovia xinhuawangi sp. nov.

– Dorsocentrals in posterior part not converge with acrostichal setae ( Fig. 18 ). Postnotum, Cu and An of wing without setae ( Fig. 17 ). Gonostylus length/gonostylus width 5.22–7.20 …................................... Shilovia yakovlevi sp. nov.

Figures

FIGURES 1–9. Shilovia rara Makarchenko, male. 1, head; 2, legs; 3, basal part of wing; 4, antepronotum and mesonotum, dorsal view; 5, sternapodeme and inferior volsella; 6, antenna; 7, distal part of gonostylus; 8–9, hypopygium in dorsal view. 1–2, 7, 9, male from Kyrgyzstan; 3–6, 8, male from Tajikistan (holotype). P1– fore leg, P2 – mid leg, P3 – hind leg.

FIGURES 21–27. Shilovia rara Makarchenko (21, 24–25), S. xinhuawangi sp. nov. (22, 27) and S. yakovlevi sp. nov. (23, 26), males. 21–23, gonostylus; 24, inferior volsella and basal lobe of gonocoxite; 25–27, sternapodeme, phallapodeme and aedeagal lobe. Scale bars: 50 µm.

FIGURES 16–20. Shilovia xinhuawangi sp. nov. (16) and S. yakovlevi sp. nov. (17–20), males. 16, legs; 17, basal part of wing; 18, dorsal part of mesonotum; 19, gonocoxite and gonostylus; 20, part of hypopygium in dorsal view. Designations are the same as in Figures 1–9.

FIGURES 10–15. Shilovia xinhuawangi sp. nov., male. 10, basal part of wing; 11, antenna; 12, dorsal part of mesonotum; 13, scutellum and postnotum; 14, hypopygium in dorsal view; 15, hypopygium without tergite IX in dorsal view.