Helina hirtipes metatarsalis Emden, 1951

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 : 236-239

Helina hirtipes metatarsalis Emden, 1951

( Figs 17–19 )

Examined type material: Holotype male seen; left hind leg missing; wings with the apical third damaged. One paratype from Kenya (Ngare Narok, Masai Reserve) dissected and illustrated.

Diagnosis. Male dichoptic; dorsocentrals 1+3; katepisternals equidistant one from each other; fore tibia with setulose hairs, denser and longer in male; male mid tibia reddish towards middle; hind femur reddish-orange on basal two-thirds to four-fifths; hind tibia broad, concave on ventral margin and with one anteroventral seta.

Male terminalia. Very peculiar. Sternite 5 broad at base, with posterior membrane deep and lobes straight and very elongated; with few setae on disc and short hairs at tips of lobes, which are yellow ( Fig. 17 ); cercal plate and surstylus very elongated ( Fig. 18 ); surstylus longer than cercal plate and with an elongated process on inner margin in apical fourth ( Fig. 19 ); aedeagal complex with distiphallus short, postgonite with short setae ( Fig. 19 ).

Notes. H. hirtipes ( Macquart, 1846) is the type species of Idiopygus Malloch, 1921 , now a junior synonym of Helina. H. hirtipes metatarsalis was described as a subspecies. H. hirtipes hirtipes could not be dissected as no material was available in the BMNH collection.

Figures

FIGURES 17–19. Helina hirtiPes metatarsalis Emden, 1951, paratype male: (17) sternite 5, dorsal view; (18) cercal plate and surstylus, dorsal view; (19) cercal plate, surstylus and aedeagal complex, lateral view. Scale bar 0.1 mm.