Corynoneura schleei Makarchenko et Makarchenko

Makarchenko, Eugenyi A. Makarchenko Marina A. & Semenchenko, Alexander A., 2019, Towards the taxonomy of Corynoneura Winnertz (Diptera: Chironomidae: Orthocladiinae) from the Russian Far East and Eastern Siberia, Zootaxa 4612 (2), pp. 221-236 : 232-233

Corynoneura schleei Makarchenko et Makarchenko

( Figs. 33–35 )

Corynoneura schleei Makarchenko et Makarchenko, 2010: 363 ; Ashe & O’Connor 2012: 198; Fu et al. 2017: 221.

New material. Russian Far East, Khabarovsk Territory : 2 mature pupae of male and 1 pupa of female , Khabarovsk district, Bolshekhekhtsirsky Nature Reserve, Ussuri River basin, Golovina Stream, N 48°11'131", E 134°41'039", 6.V. 2016, leg. N. Yavorskaya.

Remarks. This species was described based on adult male from the Khabarovsk Territory ( Makarchenko & Makarchenko 2010). Herein, we present a first description of the pupa.

Description.

Pupa (n = 2). Coloration of exuviae. Cephalothorax light-brown, abdomen lighter in middle part and darker on sides.

Cephalothorax. Frontal apotome with 2 hair-like short setae. Thorax with small teeth in front part dorsally, near suture. Antepronotum with 2 median and 1 lateral hair-like antepronotals. Three precorneals hair-like and short. Three dorsocentrals hair-like and short. Wing sheaths with some short rows of pearls.

Abdomen. Tergite I with tender shagreen near posterior margin. Tergites II–VIII with shagreen of small spinules in central part. Tergites III–V with rows of relatively strong hooklets near posterior margin ( Fig. 33 ). Sternites I–II without colorless needle-like spinules and shagreen of spinules. Sternite 3 with shagreen of small sparse spinules. Sternites IV–VIII with same kind of shagreen as tergites II–VIII in central part. Sternites III–VII with rows of relatively strong hooklets near posterior margin. Segment II with 2 pairs of short hair-like lateral setae. Segments III–VIII with 4 pairs of taeniate setae. Anal lobe 196–212 µm long and 106–126 µm wide (index of anal lobe 1.68– 1.85), with fringe of 31–45 seate, 1 taeniate inner seta and 3 taeniate macrosetae ( Figs 34–35 ). Male genital sac not extending beyond anal lobe ( Fig. 34 ).

Remarks. Pupa is closely related to Corynoneura sp. but differs by some features listed in the key for the species given below.

Distribution. Known from Amur River basin.

Figures

FIGURES 30–35. Pupae of Corynoneura sp. (30–32) and C. schleei Makarchenko et Makarchenko (33–35). 30, teeth in front part of thorax, dorsal view; 31, tergites III–IV; 32, 34, anal segment of male; 33, tergite III; 35, anal segment of female.