Miss G. Eicardo on the Asilidap. 217 



general appearance and shape, uith the short abdomen and 

 long wings, but having very pale yellow tibite it must be a 

 dill'erent species. 



Promachus contractus, Walker. 



Ins. Saund. Dipt. i. p. 120 [Trupanea] ; et List Dipt. Brit. Mus. vii., 

 Suppl. 3, p. UOG (1855) [ fi-upaneii]. 



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, ^ 15^, ? 16 mm. 



Male. — Face covered with glistening pale yellow tomentum. 

 Moustache composed, of yellow very strong bristles, with 

 white hairs above to base of antennae. Palpi with pale hairs. 

 Beard white. Forehead with pale hairs, and bristles at back 

 of head are white. Antennce 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 Avhite and black. Legs pale yellow, the 

 upper sides of femora and extreme apices of tibise 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, 



Traus. 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, Siani, 21. vi. 1001 {H. C. 

 Robinson and N. Annandale), 1916, 22 ; from Jambu, Siam, 

 same collectors, from Hainan Island and from Cliantabun, 

 S. Siam iMouhot). 



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 tegmentum. Moustache 



