With Bicardetumere Asilide. O17 
general appearance and shape, with the short abdomen and 
long wings, but having very pale yellow tibiz it must be a 
different species. 
Promachus contractus, Walker. 
Ins. Saund. Dipt. i. p. 120 [ Trupanea}; et List Dipt. Brit. Mus. vii., 
Suppl. 3, p. 606 (1855) [ Trupanea]. 
Type (male) from India. 
Type (female), India, 68. 4 (Walker Coll.). 
A small species with pale-coloured legs and wings with 
pale yellow veins. Moustache yellow. Scutellum with pale 
hairs. 
Length, ¢ 153, 9 16 mm. 
_ Male.— Face covered with glistening pale yellow tomentum. 
Moustache composed of yellow very strong bristles, with 
white hairs above to base of antennze. Palpi with pale hairs. 
Beard white. Forehead with pale hairs, and bristles at back 
of head are white. Antenne reddish. Thorax with two 
well-marked median dark stripes. Abdomen with the usual 
dark spots and grey segmentations, but the whole dorsum is 
thickly covered with white pubescence ; underside wholly 
pale covered with short yellow hairs. Genitalia black, the 
upper forceps long club-shaped, the lower ones short, the 
last segment of abdomen on underside somewhat raised, 
hardly produced, the white tuft of hair above very distinct ; 
hairs on forceps white and black. Legs pale yellow, the 
upper sides of femora and extreme apices of tibie darker, 
tarsi reddish yellow, bristles chiefly yellow ; pubescence on 
legs white. Wings clear. 
Female identical. Ovipositor long, composed of the last 
three segments. 
Promachus apivorus, Walker. 
Trans. Ent. Soc, London, (2) v. p. 282 [ Trupanea] (1860). 
Type (¢) from Burmah, 68.4., with note, “This fly 
devours the large black bees” ; in very bad preservation. 
Other females from Patani Cape, Siam, 21. vi. 1901 CH. C. 
Robinson and N. Annandale), 1916, 22; from Jambu, Siam, 
same collectors, from Hainan Island and from Chantabun, 
S. Siam (Mouhot). 
A black species with grey segmentation on the abdomen. 
Moustache yellowish. Scutellum with black bristles and 
some yellow hairs. Ovipositor short. 
Length 24-25 mm. 
Face covered with pale yellow tomentum. Moustache 
