Molophilus (Molophilus) drepanon, D & Theischinger, 2019

D, Zacariah & Theischinger, Günther, 2019, Two new species of Molophilus CURTIS from Australia (Diptera, Limoniidae), Linzer biologische Beiträge 51 (2), pp. 803-809 : 804

Molophilus (Molophilus) drepanon nov.sp. ( Figs 1-5 )

T y p e m a t e r i a l: Holotype ♂: New South Wales, Werrikimbe National Park, Tributary of Cobcrofts Creek off Mesa Trail (31.230°S, 152.164°E), 17-i-2018, Keith Bayless ; AM ( K380822 ).

D e s c r i p t i o n

Male

H e a d ( Fig.1 ): Greyish brown, with pale yellow areas at the margins of the orbit; palpus blackish brown. Antenna yellowish brown.

T h o r a x ( Figs 2-3 ): Pronotum, prescutum, scutum, scutellum and mediotergite deep brown. All pleural sclerites deep brown. Forecoxa deep brown, mid and hind coxa brownish yellow, trochanters and proximal 1/4 of femora brownish yellow, distal 3/4 darkening to brown, tibiae and tarsi darkening to greyish brown.

W i n g: Pale grey tinged with yellow, veins yellowish brown. Halter with stem and knob yellowish brown.

A b d o m e n: Greyish brown with hypopygium paler yellowish brown.

G e n i t a l i a ( Figs 4-5 ): Hypopygium with dorsal lobe of segment 9 moderately long and very wide. Gonocoxite with dorsal and medial lobe small and ventral lobe welldeveloped, apically armed with rather slim hook-shaped, medially directed beak. Gonostyli originating quite some distance from each other; inner gonostylus long with basal 2/3 to 3/4 straight, parallel sided and with apical 1/4 to 1/3 almost perpendicularly bowed laterally, conical and apically pointed; outer gonostylus rather straight, forked into a longer lateral and a shorter medial branch. Aedeagus moderately thin, largely straight and conical; parameres fused with tip narrowly rounded.

D i m e n s i o n s: Wing length 3.7 mm; body length 3.2 mm.

Female unknown.

E t y m o l o g y: Drepanon (=Greek for sickle) refers to the shape of the inner gonostylus of the male; the noun is used in apposition to the generic name.

Figures

Figs 1-3: Molophilus (Molophilus) drepanon nov.sp., male: (1) head and antenna, lateral; (2) thorax, dorsal; (3) thorax, lateral.

Figs 4-5: Molophilus (Molophilus) drepanon nov.sp., male hypopygium, ventral view. Abbreviations as used in fig. 4: ae, aedeagus; ge, gonocoxite; ig, inner gonostylus; og, outer gonostylus; pm, parameres; t9, tergite 9; vl, ventral lobe.