Helina trinubilifera ( Malloch, 1921 )

Couri, Márcia S. & Pont, Adrian C., 2018, The male terminalia of some African species of Helina Robineau-Desvoidy, 1830 (Diptera, Muscidae), Zootaxa 4399 (2), pp. 233-247 : 244

Helina trinubilifera ( Malloch, 1921)

( Figs 48–51 )

Examined type material: Holotype male seen; right wing damaged at middle on fore-margin; pin rusty close to the specimen. One male from Kenya (Chyulu Hills) dissected and illustrated.

Diagnosis. Scutum dark brown-grey pollinose; postpedicel about 2.5 times as long as pedicel; palpus black; dorsocentrals 1+3; fore tibia without anterodorsal seta; crossvein dm–cu strongly sigmoid, with a round brown spot on each extremity; margin of upper calypter fuscous.

Male terminalia. Sternite 5 with posterior membrane deep, with long setae, longer on lobes ( Fig. 48 ); cercal plate square, with a deep emargination at apex ( Fig. 49 ); surstylus very short ( Fig. 50 ); aedeagal complex with epiphallus a little longer than postgonite; distiphallus membranous ( Fig. 51 ).

Notes. The species was originally described from Kenya in Spilaria Schnabl, 1911 and was later placed in Helina, subgenus Euspilaria , by Emden (1951).

Figures

FIGURES 48–51. Helina trinubilifera (Malloch, 1921), male: (48) sternite 5, dorsal view; (49) cercal plate and surstylus, dorsal view; (50) cercal plate and surstylus, lateral view; (51) aedeagal complex, lateral view. Scale bar 0.1 mm.