TACHYDROHIA. 377 



thickened ; middle femora considerably thickened and with two 

 rows of very small black spines and also a row of long stiff hairs, 

 all placed on the underside ; the middle tibiae have a short but 

 distinct spur-like tooth at the tip and a single row of minute 

 black spines on the underside. Wings pale yellowish grey, veins 

 a deeper yellow; surface of wing with short hairs and also micro- 

 scopically setulose; halteres yellowish. 



Length, 2 mm. 



Described trom a single $ in the Indian Museum from Kurseong, 

 4. vii. 1908 (Annandale). 



309. Tachydromia nepalensis, nom. nov. (PI. IV, fig. 22.) 

 Brevios lonyicornis, Brunetti, Ilec. Ind. Mus. ix, p. 22 (1913). 

 c? . Head: occiput blackish grey, with pale yellowish-grey 

 pubescence; eyes closely contiguous ; antennas blackish, 3rd joint 

 and its style with rather dense whitish pubescence ; proboscis 

 shorter than height of head, yellowish. Thorax bright ferru- 

 ginous, also scutellum and metanotum ; a short black streak above 

 each wing apparently joined together near posterior margin by 

 an irregular blackish mark (thorax slightly damaged in this spot 



Fig. 36. Tachydromia nepalensis, Brun., wing. 



by the pin); sides grey. Abdomen black, roughened, nearly bare; 

 geaitalia rather large, black. Legs all wholly pale brownish 

 yellow, with soft pubescence; middle femora slightly thickened. 

 Wings pale grey, highly iridescent ; a slight obliteration of the 

 veins at tips of basal cells ; venation in accordance with the 

 generic diagnosis ; halteres brownish yellow. 



Length, 2 mm. 



Described from a single c? in the Indian Museum from Sarath, 

 Nepal, 24. ii. 1908. 



The present species, being now referred to this genus, has to be 

 renamed, on account of the European species T. longicornis, Mg. 



310. Tachydromia gentilis, Brun. 



Platypalpus gentilis, Brunetti, Eec. Ind. Mus. ix, p. 40 (1913). 

 2 . Head wholly blackish ; antennae and proboscis dull brownish 

 yellow, the latter when fully protruded about as long as the 

 height of the head, yellow at the base, black-tipped; palpi about 

 half as long as the proboscis, stoutly cylindrical, pale yellow, with 

 a few hairs. Thorax shining black, with sparse yellow hairs and 

 a few lateral bristles ; sides a little grey-dusted, as is mon 



