Prodiamesa levanidovae Makarchenko

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 : 11-13

Prodiamesa levanidovae Makarchenko

( Figs. 20–27 )

Prodiamesa levanidovae Makarchenko, 1982: 305–307, 1985: 99 , 2006: 280, 482, 623; Kobayashi & Endo 2008: 57 ; Ashe & O’Connor 2009: 328.

Prodiamesa otukii Sasa et Tanaka, 2000: 43 .

Prodiamesa toneheia Sasa et Tanaka, 2000: 42 .

Prodiamesa nagaii Sasa et Kawai, 1985: 13 .

Material examined. Russia: 4 adult males (holotype and paratypes) , 5 pupae, 5 larvae, Russian Far East, Jewish Autonomous Region, Obluchie District , Teploye Lake of Bira River basin (Amur River basin), 13–15.V.1955, leg. I. Levanidova ; 4 adult males, the same as previous region, Bolshoi Spring of Bidzhan River basin (Amur River basin), 48.643185 N, 131.605183 E, 8.IV.2014, leg. E. Makarchenko.

Comments. Descriptions of the male, pupa and larva were given by Makarchenko (1982, 1985, 2006) but in Russian as well as the structure of the male hypopygium and some other features were not considered in great detail. Therefore, we decided to make a more detailed redescription of the adult male.

Description

Adult male (n = 5). Total length 4.8–5.4 mm. Total length/wing length 1.19–1.46.

Coloration. Head, thorax, legs, and abdomen brown to dark brown; antennae light brown; wings greyish.

Head. Eyes bare, with long parallel-sided dorsomedial extention ( Fig. 17 ). Temporal setae 14–15, including 4–5 verticals, and 9–10 postorbitals. Clypeus with 12–16 setae. Antenna with 13 flagellomeres and developed plume; terminal flagellomere with subapical setae, 50–52 μm long; AR 1.8–2.07. Palpomeres lengths (in μm): 24–60; 92–108; 144–156; 124–156; 176–210. Palpomeres 1–5 length/head width 1.03–1.28.

Thorax. Antepronotum with 6–9 lateral setae. Acrostichals absent, dorsocentrals 28–31(in 2 rows) ( Fig. 18 ), prealars 8–11, scutellars 43–47.

Wing. Length 3.64–4.04 mm, width 0.94–1.0 mm. R and R 1 with 11–22; R 4+5 with 1–2 setae in distal part. Costa extension 80 μm long. RM length/MCu length 1.1–1.7. Anal lobe developed, outline rounded. Squama with 22–32 setae 126–155 μm long. VR 0.97–1.0.

Legs. Spur of fore tibia 80–100 μm long; spurs of mid tibia 42–52 μm and 42–48 μm; of hind tibia 96–97 μm and 42–48 μm long. Hind tibial comb with 12–14 setae. Lengths and proportions of leg segments as in Table 6 .

Hypopygium ( Figs. 19–24 ). Tergite IX without anal point, with 43–52 setae, 16–42 μm long and concave posterior edge ( Fig. 23 ). Laterosternite IX with 7–9 setae, 100–148 μm long ( Fig. 21 ). Gonostylus 136–148 μm long, slightly curved in the distal part, covered with short setae and with megaseta 29–32 μm long and 1–2 setae nearest, 16–21 μm long. Gonocoxite 328 μm long, shape of inferior volsellae as in Figs 21–22 . Length of inferior volsella 100–108 μm. Median volsella yellowish and lanceolate ( Figs. 19–20 ), 40–64 μm long. Transverse sternapodeme trapeciedal, with slightly concave outer edge ( Fig. 24 ), 180–190 μm long, 24–28 μm wide. Phallapodeme 104 μm long. HR 3.0.

Pupa and larva were described in detail by Makarchenko (1982, 1985, 2006).

Distribution. Known from the Russian Far East (Amur River basin, Sakhalin Island), Japan (Honshu Island) ( Kobayashi & Endo2008) and China (Ninghia Province) ( Wang 2000).

Figures

FIGURES 20–27. Adult male of Prodiamesa levanidovae Makarchenko. 20, head; 21, mesonotum; 22–23, median volsellae; 24, hypopygium in dorsal view; 25, hypopygium in ventral view; 26, tergite IX; 27, transverse sternapodeme. Scale bar is 50 μm.

FIGURES 17–19. Adult male of Odontomesa fulva (Kieffer). 17, hypopygium in dorsal view; 18, median volsella; 19, superior volsella.