Monodiamesa kamora Makarchenko et Yavorskaya

Makarchenko, Eugenyi A. & Semenchenko, Alexander A., 2023, Review of subfamily Prodiamesinae (Diptera: Chironomidae) from the Russian Far East and bordering territory, Zootaxa 5323 (1), pp. 1-26 : 6-7

Monodiamesa kamora Makarchenko et Yavorskaya

( Figs. 8–12 )

Monodiamesa kamora Makarchenko et Yavorskaya, 2008: 175 ; Ashe & O’Connor 2009: 324; Makarchenko et al. 2018: 3 .

Material examined. Russia: 1 adult male (holotype), Russian Far East, Khabarovsk Territory, Nikolayevsk District , left bank of Amur River , Kamora River in environs of the city Nikolaevsk-on-Amur , 24.VI 2007, leg. N. Yavorskaya ; 58 adult males, the same data except Amurskyi District, Bolon Nature Reserve, Simmi River near cordon Cheremshinaya , 25.V 2016, leg. N. Yavorskaya ; 18 adult males, the same river near cordon Kirpu, 49.507283 N, 136.033228 E, 25.V 2016, leg. N. Yavorskaya ; 6 adult males, the same river near cordon Vakhtar, 26.V 2016, leg. N. Yavorskaya ; 24 adult males, the same Nature Reserve, Selgon River , 26.V 2016, leg. N. Yavorskaya.

Comments. The male of this species is described in detail from Amur River basin of the Russian Far East ( Makarchenko & Yavorskaya 2008; Makarchenko et al. 2018) and therefore below we give only brief diagnosis.

Description

Adult male. Total length 3.9–5.1 mm. Temporal setae including 2–4 verticals and 6–7 postorbitals. Clypeus with 15–16 setae. Head width/palpal length 1.–1.31. Antenna with 13 flagellomeres, AR 1.75–2.08. Acrostichals absent, dorsocentrals 18–23 (in 1–2 rows), prealars 8, supraalars 1. Scutellum with 41–55 setae. Wing length 3.04–3.16 mm. Anal lobe well developed, roundish and projected forward. LR 1 0.67–0.72, BV 1 2.56–2.65, SV 1 2.49–2.65.

Hypopygium ( Figs. 8–12 ). Tergite IX with anal point 72–88 μm long and with 46–49 setae, some of that situated in basal part of anal point ( Figs 8–10 ); laterosternite IX with 12–13 setae. Gonostylus in middle outer part prominent, 152–156 μm long, with megaseta 64 μm long and 1–2 setae nearest 80 μm long ( Fig. 8 ). Gonocoxite 356–368 μm long, shape of superior and inferior volsellae as in Figs 8–10 . Length of superior volsella 92–104 μm, inferior volsella 124–132 μm. Median volsella setae-like, slightly curved 40–44 μm long and situated on darkbrown pedestal 84–104 μm long. Near of median volsella in anterio-ventral part situated seta 52–60 μm long on small tubercle ( Fig. 11 ). Phallapodeme with aedeagal lobe as in Fig. 12 .

Pupa and larvae unknown.

Distribution. Known only from Amur River basin of the Russian Far East.

Figures

FIGURES 8–12. Adult male of Monodiamesa kamora Makarchenko et Yavorskaya. 8, 10, hypopygium in dorsal view; 9, hypopygium in ventral view; 11, median volsellae and basal setae; 12, phallapodeme and aedeagal lobe. Scale bars are 50 μm.