226 BOMBYLIID^. 



with rather closely-placed, somewhat large, and elongated snow- 

 white scales, which sometimes spread over the last two, or 

 even three, segments and extend round over the sides. In the 

 $ these white scales below the abdomen are absent, and art- 

 replaced by long black hairs on the ultimate segment. The 

 genital organs in the S consist of a pair of stout upper claspers (?), 

 the apical half tapering to a blunt point, each with a small lamella 

 at the tip ; this large organ is rufous brown, a little blackish above 

 at the base, and with some reddish-yellow hairs on the inner sides ; 

 below these large claspers are some further, apparently complex 

 organs, which are not easily visible, the whole being protected by 

 a large black curved ventral plate, bearing on its margin reddish 

 hair near the base and black hair posteriorly. In the § the 

 genital organs consist of a rather large subcorneal process with 

 dense reddish or yellowish hair; in one example this organ is 

 almost wholly withdrawn within the abdomen. Legs black; coxae 

 with rather long silky white hairs; femora and tibiae with small 

 whitish scales, which extend, more sparsely, to the tarsi ; all the 

 femora with soft hairs below and some irregular weak bristles : 

 the tibiae generally with small, apparently irregularly-placed 

 spines, the most regular being a row on the outer side of the hind 

 tibiae; all the legs minutely pubescent. Wings almost clear, first 

 posterior cell rather widely open ; fifth generally narrowly open, 

 but in two specimens closed exactly on the margin ; the lower 

 side of the discal cell occasionally with the beginning of a very 

 small appendix. Costal cell and extreme base of wing brownish 

 yellow; subcostal cell dark brown, very narrow. Pork of the 

 third longitudinal vein sharply angled, and with only a tendency 

 to appendiculation (which actually occurs only in two or three 

 specimens, in two of which, moreover, there is au additional 

 veinlet in one wing only, this veinlet producing the cell usually 

 characteristic of Hyperalonia). A dark brown suffusion, distinct 

 but small, occurs at the base of the second vein, joined to that of 

 the inner cross-vein ; suffusion also at the angle of the fork of the 

 third vein ; over the outer cross-vein the colour carried upwards 

 along the inner side of the discal cell ; also over the lower 

 extremity of the veinlet, connecting the two branches of the 

 fourth longitudinal. Costa minutely spinose, with the usual spiny 

 portion at the base. Halteres light brown, tip of club creamy ; 

 tegulae milk-white, with snow-white hair ; alulae concolorous with 

 wing, bearing a fringe of minute black hairs. 



Length, 8-10 mm. 



Described from several of each sex taken at Bhogaon, Purneah 

 District, N. Bengal, 19-26. iii. 1909 (Paiva) ; the Indian Museum 

 also has a specimen from Sahelwa, Bahraich District, United 

 Provinces, 11. iii. 1909 (Hodgart); and the British Museum one 

 from the Ivangra Valley, 4500 ft., vii. 1899 {Dudgeon). Other 

 specimens seen by me are from Pusa, iii, iv, ix, x (common), bred 

 from cells of the wasp, Sceliphron coromandelianum ; also taken 

 at light: Lahore, 29. iii. and 16. iv. 1909; Dum Dum, vi. 1913 

 (Chatterjee), 4. viii. 1913, 9. vii. 1913; Murree Hills, 4500ft,, 



