Molophilus (Molophilus) mediolobatus, 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 : 806

Molophilus (Molophilus) mediolobatus nov.sp. ( Figs 6-9 )

T y p e m a t e r i a l: Holotype ♂: Queensland, Mt Lewis National Park, Tributary of Mitchell River off Mt Lewis Rd (16.557°S, 145.276°E), 27-x-2017, R. StClair & D. Cartwright; QM ( T245907 ).

D e s c r i p t i o n

Male

H e a d ( Fig. 6 ): Greyish brown, vertex paler yellowish brown. Palpus brownish. Antenna pale yellow.

T h o r a x ( Fig. 6 ): Pronotum, prescutum and scutum pale golden yellow, the posterior margins of scutal lobes paler whitish yellow. Scutellum and mediotergite largely pale golden yellow, base of mediotergite with darker brownish area. Cervical sclerite and pleurites pale greyish yellow. Coxae, trochanters, femora and tibiae pale whitish yellow, tarsi greyish brown.

W i n g: With pale grey tinge, veins pale yellowish brown. Halter with stem pale whitish yellow, knob white.

A b d o m e n: All segments pale greyish yellow, the hypopygium golden yellow.

G e n i t a l i a ( Figs 7-9 ): Hypopygium with dorsal lobe of segment 9 moderately long and wide, apically widely rounded. Gonocoxite massive, with small, flat and broadly rounded dorsal lobe, slim unarmed ventral lobe and very prominent and bulky medial lobe. Gonostyli originating close to each other; inner gonostylus long, slim, almost parallel sided and strongly curved dorsally and medially; outer gonostylus strongly bent medially not far from origin, forking at about level mid-line into two lobes, one thin and slightly clubbed, the other a bit wider and apically obtusely pointed. Aedeagus very thin and largely straight, parameres fused, not prominent.

D i m e n s i o n s: Wing length 3.3 mm; body length 2.8 mm.

Female unknown.

E t y m o l o g y: This species is named with reference to the large size and prominence of the median lobe of the male gonocoxite.

Figures

Fig. 6: Molophilus (Molophilus) mediolobatus nov.sp., male, head and thorax, lateral view.

Figs 7-9: Molophilus (Molophilus) mediolobatus nov.sp., male hypopygium, (7-8) ventral view; (9) lateral view. Abbreviations as used in fig. 7: ae, aedeagus; ge, gonocoxite; ig, inner gonostylus; ml, medial lobe; og, outer gonostylus; t9, tergite 9; vl, ventral lobe.