Linevitshia prima Makarchenko, 1987

Sun, Bingjiao, Lin, Xiaolong, Wang, Xinhua & Makarchenko, Eugenyi A., 2019, New or little-known Diamesinae (Diptera: Chironomidae) from Oriental China, Zootaxa 4571 (4), pp. 544-550 : 547

Linevitshia prima Makarchenko

( Fig. 9 ).

Linevitshia prima Makarchenko, 1987: 207 , fig. 1; Brundin 1989: 27, fig. 4.3; Saether et al. 2000: 134, fig. 144; Ashe & Connor 2009: 292; Makarchenko & Semenchenko, 2014: 357 , figs 1–28.

Linevitshia yezoensis Endo in Endo, Makarchenko & Willassen, 2007: 93 , figs 1–4, 7–13; Ashe & Connor 2009: 292; Makarchenko & Endo 2009: 65.

Material: 1 adult male (BDN No. A 13I53) China: Zhejiang Province, Hangzhou City, Changhua County, Qingliangfeng National Nature Reserve , N 30°17′50″, E 119°07′01″, alt. 1400 meters above sea level, 16.V– 20.VI.2012, Malaise trap, leg. Rui Guo.

Adult male (n = 1). Total length: 3.88 mm. Wing length 2.38 mm. Total length/wing length 1.42. Coloration brown to dark brown.

Head. Antenna with 13 flagellomeres and well-developed plume; ultimate flagellomere 550 µm long, with 1–2 subapical setae 20 µm long. AR 1.20–1.26. Temporal setae composed of 1 weak inner verticals and about 2 postorbitals. Length of palpomeres 1–5 (µm): 50, 75, 158, 168, 260. Palpomeres 1–5 length/head width 1.25.

Thorax. Antepronotum with 1 dorsal and 4 lateral setae. Acrostichals 22, dorsocentrals 16, prealars 8, supralars 1, and scutellars 8. Posterior anepisternum II with 6 setae. Epimeron II with 5 setae.

Wing. Width 0.72–0.80 mm. Costa extentiion 80 µm long. Anal lobe developed, round. Brachiolum with 4 setae. R with 24 setae, R 1 with 6 setae, R 4+5 with 2 setae subapically. RM length/MCu length 2.2. Alula with 7 setae, 52–60 µm long. Squama with 15 setae. VR 0.91.

Legs. Spurs of fore tibia 80 µm, of middle tibia 75 and 65 µm, of hind tibia 90 and 65 µm long. Hind tibial comb composed of 10 setae 25–43 µm long. Front leg with 1 apical pseudospur on ta 1; mid and hind legs with 2 apical pseudospurs on ta 1 and ta 2. Sensilla chaetica absent. ta 4 cylindrical, ta 5 slightly curved. Pulvilli small. Tip of claws serrate, with 5 teeth. Lengths and proportions of leg segments as in Table 2.

Hypopygium ( Fig. 9 ). Tergite IX with 7 setae. Laterosternite IX with 9 setae. Transverse sternapodeme broadly arched, 196 µm long and 40 µm wide. Phallapodeme 100 µm long. Gonocoxite 208 µm long; aedeagal lobe large. Gonostylus 112 µm long, in distal part with long (16–24 µm), strong setae and 1 apical megasetae, 6–8 µm long. HR 2.1.

Pupa and larva are absent in our material but they are described before by Endo et al. (2007), Makarchenko & Endo (2009) and Makarchenko & Semenchenko (2014).

Distribution. For the first time recorded for the Oriental Region, it was previously known only from East Palaearctic—Japan, China and the Russian Far East (Kunashir Island, Primorye Territory, Amur River basin) ( Wang 2000; Endo et al. 2007; Ashe & Connor 2009).

Figures

FIGURES 6–10. Adult male of Diamesa qiangi sp. nov. (6–8), Linevitshia prima Makarchenko (9) and Sasayusurika nigatana (Tokunaga) (10). 6, gonostylus; 7, inferior volsella; 8, basimedial setal cluster; 9–10, hypopygium in dorsal view. Scale bars 50 µm.