Zygomyia mollemani, Kurina, 2012

Kurina, Olavi, 2012, Description of four new species of Zygomyia Winnertz from Ethiopia and Uganda (Diptera: Mycetophilidae), African Invertebrates 53 (1), pp. 205-205 : 209-211

Zygomyia mollemani sp. n.

Figs 3 , 7–10 , 25

Etymology: This species is named in honour of Dr Freerk Molleman (Tartu, Estonia), who organised a collecting trip to Uganda in February 2010 and curated subsequent Malaise trap samples from Kibale National Park.

Differential diagnosis: Distinguishable from other known Afrotropical Zygomyia species by the following characteristics: mesonotum and scape yellow; wing lacking dark markings; anepimeron with 1 prominent and 1 normal seta (other African species have 3 or 4 setae of equal size); male gonocoxite with ventroapical margin convex medially and laterally protruding (with a medial indentation and without lateral protrusions in other species). Gonostylus distinctly separated into 2 lobes; ventral lobe with glabrous apical outgrowth ( Fig. 10 ), but lacking strong setae.

Description:

Male.

Head: Light brown with numerous dark setae. Two ocelli close to eye margins. Clypeus GDUN \HOORZ, OLJKWHU WKDQ KHDG. 0RXWKSDUWV \HOORZ. 3DOSXV ZLWK ¿UVW VHJPHQW \HOORZ, segments II–IV light brown, segment V yellow and apically brownish. Ratios of three DSLFDO VHJPHQWV Í.Ɵ:Í.³:ƻ.Í. 6FDSH DQG SHGLFHO \HOORZ, ÀDJHOODU VHJPHQWV OLJKW EURZQ.)ODJHOORPHUHV F\OLQGULFDO, PHGLDQ ÀDJHOORPHUH DV ORQJ DV EURDG, DSLFDO ÀDJHOORPHUH conical, 1.8× as long as broad basally. Scape with setae including 2 dorsoapical bristles extending to middle of pedicel. Pedicel with apical crown of setae and a dorsoapical EULVWOH H[WHQGLQJ WR DSH[RI ¿UVW ÀDJHOORPHUH.)ODJHOORPHUHV ZLWK VKRUW ZKLWLVK VHWDH. Thorax: Mesonotum dark yellow. Pleural parts yellow, except anepisternum darker at dorsal margin and laterotergite darker at ventral margin. All bristles and setae on thorax brown. Scutellum with 4 strong and several weaker marginal bristles. Antepronotum with setae including 1 bristle. Proepisternum with setae including 3 strong bristles.Anepisternum with several setae including 4 bristles on dorsal part.Anepimeron with setae, including 2 bristles, one of them remarkably long. Laterotergite with dorsally-directed setae. Metepisternum yellow with brown hind margin and dark setae on posterior part. Haltere pale yellow.

Legs: Coxae yellow, except apical brown markings on mid and hind coxae. Femora yellow, except hind femur brown on apical fourth and dorsal margins of mid and hind femora narrowly brown. Tibiae yellow. Tarsi appear brownish due to dense setae. All bristles and setae brown. Fore coxa anteriorly, mid coxa anteroapically and all femora clothed in setae. Mid femur with 2 apicoventral bristles progressively shorter towards apex, hind femur with 4 apicoventral bristles. Mid tibia with 4a, 5d (progressively longer towards apex), 3p and 3v (one of them distinctly shorter). Hind tibia with 8a and 5d (progressively longer towards apex). Proportions of femur to tibia for fore, mid and hind legs: 1.23, 1.09, 0.88. Proportions of tibia to basitarsus for fore, mid and hind legs: 1.25, 1.39, 1.62.

Wing: Wing length 1.90 mm. Membrane with brownish tinge, but without distinct markings. Veins brown. R 1, R 5 and rm with strong setae on both sides. M 1 and M 2 very faint apically, with setae on dorsal surface. bM–Cu and CuA glabrous. Crossvein rm 1

as long as m -stem.

Abdomen: Light brown with segments II–IV somewhat lighter laterally. Terminalia ( Figs 7–10 , 25 ) yellow. Ventroapical margin of gonocoxite slightly convex medially and protruding laterally. Gonostylus distinctly divided into ventral and dorsal lobes.

Ventral lobe of gonostylus with protruding glabrous outgrowth apically. Dorsal lobe of gonostylus with apical spine-like process on medial margin. Basal part of dorsal lobe of gonostylus elongated medially and bearing cluster of strong bristles. Aedeagus distally heart-shaped; parameres broad, slightly tapering with apical part smoothly curved mesad.

Female. Unknown.

+RORW\SH: ƃ 8*$1'$:. LEDOH 13 ,.DQ \ DZDUD %LRO. 6W., ƟƟ°³³‵54.ƻ"1 ³Ɵ°ƻÍ‵³Í.³"(, Í5ͳ P, 8±Í5. viii.2010, O. Kurina & co, Malaise trap (No 4).

Biology: Unknown.

Figures

Figs 3–6.NewAfrotropical Zygomyia species,males,habitus: (3) Z. mollemani sp. n.; (4) Z. simiensis sp.n. (terminalia removed); (5) Z. toro sp. n.; (6) Z. yllae sp. n. Scale bar = 1 mm.

Figs 7–10. Zygomyia mollemani sp. n., male terminalia: (7) ventral view; (8) dorsal view; (9) lateral view; (10) internal view of gonostylus. Scale bars = 0.1 mm.

Figs 25–28.Aedeagal complex, dorsal view: (25) Zygomyia mollemani sp. n.; (26) Z. simiensis sp. n.; (27) Z. toro sp. n.; (28) Z. yllae sp. n. Scale bar = 0.1 mm.