Helina gracilior 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

Helina gracilior Emden, 1951

( Figs 13–16 )

Examined type material: Holotype male seen; in good condition, apex of right wing damaged. One male from Kenya (Mt. Elgon, Health Zone) dissected and illustrated.

Diagnosis. Male frons less than twice as wide as postpedicel; scutum dark brown; dorsocentrals 2+3; katepisternals equidistant one from each other; mid tibia with 1 anterodorsal seta; wing with dark clouds on crossveins r–m and dm–cu; costal spine very long.

Male terminalia. Similar to H. fuscibasis. Sternite 5 longer than wide, with two robust setae on each lobe and with scattered setae on disc ( Fig. 13 ); cercal plate square, surstylus a little longer than cercal plate in lateral view ( Figs 14–15 ); aedeagal complex with epiphallus longer than postgonite; distiphallus membranous at tip ( Fig. 16 ).

Notes. The species was originally described from Kenya and is still only known from that country.

Figures

FIGURES 9–16. Helina fuscibasis Emden, 1951, paratype male: (9) sternite 5, dorsal view; (10) cercal plate and surstylus, dorsal view; (11) cercal plate and surstylus, lateral view; (12) aedeagal complex, lateral view. Helina gracilior Emden, 1951, male:(13) sternite 5, dorsal view; (14) cercal plate and surstylus, dorsal view; (15) cercal plate and surstylus, lateral view; (16) aedeagal complex, lateral view.Scale bar 0.1 mm.