Niladmirara metula Fedotova, 2018

Fedotova, Z. A., 2018, New taxa of the gall midges of the tribe Asynaptini (Diptera: Cecidomyiidae, Porricondylinae) from the Russian Far East, Far Eastern Entomologist 362, pp. 1-12 : 5-7

Niladmirara metula Fedotova , sp. n.

Figs 1–9 , 22, 23 , 25, 26

TYPE MATERIAL. Holotype: ♂ (slide 572/K-2/112), Russia: Southen Kuriles ,

Shikotan Island, Krabozavodskoje village, Malaise trap, 18–20.VIII 2012, leg. Yu.N.

Sundukov ( ZISP).

DESCRIPTION. MALE. Body yellow, length 1.43 mm; length of wing 2.18 mm,

width 0.66 mm; length of antenna 2.07 mm. Eye bridge with 9-10 ommatidia-broad.

Head length 0.23 mm (without length of mouth parts), 0.29 mm (with mouth parts),

that 1.2 times as long as height of head. Antennae 2+15-16-segments. Scape 1.3

times as long as pedicel, pedicel 1.2 times longer than its width. Scape, pedicel and flagellomeres uniformly sclrotized. Face yellow, F1 as long as F2. F1 3.5 times as long as wide, basal enlargement 1.5 times as long as width, 0.7 times as long as neck. F2 3.9 times as long as wide, basal enlargement as long as width, 0.8 times as long as neck. F5 3.9 times as long as wide, basal enlargement 1.5 times as long as width, 0.6 times as long as neck. Basal enlargement barrel-shaped, 1.7 times shorter than neck. F9 4.9 times as long as wide, basal enlargement 1.7 times as long as width, 0.5 times as long as neck. F14 2.4 times as long as wide, basal enlargement 2.1

times as long as width, 1.8 times as long as neck. F16 1.1 times as long as F15.

Mouthparts with triangular labrum and prolonged labellum. Palpi 4-segmented, its ratio 1:1.5:0.9:1.2, segments almost parallelsided, with palpiger. Palpi slightly longer than length of head, length of palpi 0.26 mm.

Thorax slightly sclerotized, notum 1.9 times as long as wide. Anepimeron without pores. Legs slightly lighter than body, all legs 2.4–2.9 times as long as body and

1.7–1.9 times as long as wing. Hind femur 1.3 times as long as tibia. Fore femur as long as 2nd tarsal segment, middle and hind femur 1.1 times as long as one. Fore tarsus 1.1 times as long as middle one, almost as long as hind one. 2nd segment of fore tarsus 15.8 times as long as 1st segment and 9.5 times as long as 5th segment.

Combined length of 3rd-5th tarsal segments in fore legs 0.8 times as long as 2nd

segment. Claw in all tarsi with thin dent, empodium as long as or slightly shorter than claw. Wing widest near middle, 3.3 times as long as wide, R 1+2 2.2 times shorter than wing. Part of R 1+2 from apex to point of joining it with Rs 2.0 times shorter than R 1+2. Length of abdomen 0.66 mm (without length of genitalia).

Marginal setae of abdomen tergites much shorter than width of abdomen.

Genitalia almost transversal. Gonocoxites very wide, ventral side almost without excision, 1.3 times as long as wide, apically almost stright. Gonostylus strongly enlarged distally (dorsal view) and medially (lateral view) ( Fig. 1 ), with small claw rounded apically ( Fig. 23 ). Gonostylus 1.6 times shorter than gonocoxites, 2.6 times

0.1 mm.

as long as wide. IX tergite narrower than gonocoxite, cordiform, as wide as X tergite.

IX tergite with wide round lobe, X truncated apically, both with triangular excision.

Parameres long and thin, projections apically slightly curved and pointed; roots of parameres forms the loop together with middle branch. Apical side of aedeagus not visible. Genital rod long and thin, almost parallelsided, right truncated apically.

Basal part of genital rod enlarged proximally, far prolonged behind of basal margin of genitalia.

FEMALE unknown.

RELATIONSHIPS. New species closely related to N. mucronata (Mamaev et

Zaitzev, 1998), comb. n. ( Fig. 24 ), but differs from it by tranversal form of genitalia;

wide gonostylus with thin claw; completely fused and strightly truncated very wide gonocoxites; by else more long overlapping parameres; by presence very long genital rod (not transverse proximally, Fig. 24 ); by presence of microtrichiae on basal enlargement of flagellomeres.

ETYMOLOGY. Name of the new species is formd from the Latin metula –

peaked column in accordance with the form of parameres of the genitalia.

Figures

Figs 1–9. Niladmirara metula sp. n., male holotype. 1 – genitalia; 2 – F5; 3 – F9; 4 – F13-F16 of left antenna; 5 – F14-F15 of right antenna; 6–7 – tarsal claw; 8 – wing; 9 – head. Scale bars = 0.1 mm.

Figs 17–24. Niladmirara spp., male holotypes: 17–21 N. devergentia sp. n.; 22–23 N.

Figs 25–28. Niladmirara spp., male holotypes. 25–26 N. metula sp. n.; 27–28 N.