Kaluginia lebetiformis lebetiformis Makarchenko, 1987

Makarchenko, E. A., Yavorskaya, N. M. & Yakovleva, Yu. I., 2020, DESCRIPTION OF AN UNKNOWN PUPA OF THE GENUS KALUGINIA MAKARCHENKO, 1987 (DIPTERA: CHIRONOMIDAE, DIAMESINAE) FROM THE AMUR RIVER BASIN, Far Eastern Entomologist 407, pp. 21-24 : 22-24

Kaluginia lebetiformis lebetiformis Makarchenko, 1987

Figs 1–6

Kaluginia lebetiformis Makarchenko, 1987: 786, 2006: 266 ; Oliver, 1989: 134; Ashe &

Connor, 2009: 291; Makarchenko et al., 2018: 28, fig. 4 (partim).

Kaluginia lebetiformis lebetiformis: Makarchenko et al., 2020: 21 , fig. 1–3, 6–8.

MATERIAL EXAMINED. Russia: Khabarovsk Territory, Nanaisky District, Anyuisky

National Park, Pihtsa River (tributary of Gassi Lake ), Amur River basin, 48.47.804 o N ,

136.47.027 o E, 21. V 2019, 1 mature pupa of male, leg. N. Yavorskaya.

DESCRIPTION. Pupa (n=1). Total length 3.7 mm. Exuviae with brown cephalothorax and brownish abdomen.

Cepalothorax. Frontal apotome without warts, with small conical cephalic tubercles, 16

μm long. Two dark brown and long (152–164 μm) frontal setae are present on prefrons ( Fig.

1). Thorax dorsally strongly granulated in the anterior two-thirds, wrinkled in the posterior third ( Fig. 2 ). Thoracic horn strongly sclerotized, from dark brown to black, triangular, 124

μm long and 64–68 μm width in basal part, covered with hairlike setae, 4–6 μm long ( Fig. 3 ).

Three precorneals, 28–76 μm long, 2 median and 2 lateral antepronotals, 48–64 μm long, 2

dorsocentrals are present.

Abdomen. Tergite I and tergite IX without shagreen. Tergites II–VIII with median and lateral shagreen of spinules, but shagreen on tergite II less intense ( Figs. 4–5 ). Sternites without shagreen. Tergites and sternites without posterior spines. Apophyses normal developed ( Fig.

5). Tergites I–VII with 5 dordsal setae, tergite VIII with 1 dorsal seta. Segment I with 2 pairs,

segments II–VIII with 4 pairs of hairlike lateral setae, 32–98 μm long. Anal lobe broad, with 3

strong, apically hooked anal macrosetae, 80–88 μm long; also with 3 dorsomedial and 1 ven-

tromedial setae, 44–52 μm long. Male genital sac broad, strongly extended beyond anal lobe and apex curved dorsally ( Fig. 6 ).

REMARKS. Pupa of K. lebetiformis lebetiformis is a typical for representatives of the tribe Boreoheptagyiini , for which the pupa was previously known only to the genus Boreoheptagyia Brundin. Most of the features of K. lebetiformis lebetiformis , and the genus Kaluginia ,

are very similar or the same to those of Boreoheptagyia (Oliver, 1986) . We found only one significant diagnostic feature that distinguishes these two genera. Pupa of Kaluginia with 2

long dark brown cephalic frontal setae on the prefrons ( Fig. 1 ). All known Boreoheptagyia species without frontal setae on the head (Oliver, 1986).

and ocular field; 2 – anterior part of thorax, lateral view; 3 – thoracic horn; 4 – tergites I–II;

5 – tergites II–IV; 6 – tergites VII–VIII and anal segment. FS – frontal setae.

ECOLOGY. Pupa was collected on pebble gravel ground, partially covered with algae at a water temperature of 7ºС and with high speed water.

Figures

Figs 1–6. Pupa of Kaluginia lebetiformis lebetiformis Makarchenko. 1 – frontal apotome