H. C. EFFLATOl'N. 



but with very short inconspicuous pubescence; scutellum shining 

 aeneous, almost free from pubescence; Radius 4 + 5 only slightly 

 dipped. 



DESCRIPTION :— Male: Face and frons shining black, but 

 enti e] ered with dense silvery-white dust and some white 



hairs, amongst which are intermingled yellowish ones. Jowls, as 

 well as most of the occiput, covered with white dust and whitish- 

 : the pubescence on the very shallow occiput is ex- 

 tremely short. Vertex very long and puff ed out above and pointed 

 in front, very shining aeneous-black and sparsely punctate, with a 

 hair arising from each dot; its pubescence is rather long, tawny- 

 yellow on lie extreme front, blackish about the ocelli and again 

 on the back half; the extreme tip of the vertical 

 triangle is usually covered with yellow dust and the anterior 

 llus is much further from the two posterior, than the two 

 latter ai from each other. Eyes touching for a distance which is 

 shorter than the length of the frons (for about six to seven facets), 

 covered with white, very inconspicuous hairs. 



Antennae with the two basal joints black and the third reddish 

 black but blackish above; most of the second and all the third 

 joints are covered with shining whitish dust and in addition the 

 second joint bears a short greyish-white pubescence; arista three 

 jointed, about twice the length of the third joint of the antennae 

 with its apical half very slender; its two basal joints are deep 

 reddish-brown, while the long third joint is entirely blackish. 



Thorax very shining, blackish aeneous, and rather densely 

 punctate, with a pair of whitish bands in front, which are in- 

 conspicuous and scarcely extend beyond the middle ; the humeri 

 are rather swollen and prominent, with a distinct and deep post- 

 liumural suture; pubescence very short, pale and inconspicuous, 

 exc p1 rm' a tuft of rather longer whitish hairs on the suture. 

 Scutellum also very shining aeneous, densely punctate aid with a 

 oil' 1 : pubescence; its margin is serriform and flattened, except 

 a' the basal corners; the margin appears as if it might be com- 

 p sed of about twenty short stout spines which had coalesced ex- 

 c< pt a: i heir t ips. 



Abdomen about twice as long as the thorax and entirely shi- 

 ning aeneous-black, with three pairs of whitish lunules, one pair 

 on each of the second., third and fourth segments respective] v. it 

 is also densely punctate "like the thorax with short pale pubeseence, 

 which is rather inconspicuous, except for a tuft or fringe of 

 whitish hairs on the basal corners on the sides of the second seg- 

 ment, which is not unlike the fringe in Syritta. Venter inpunc- 

 tate, reddish-brown near the base, opaque-grey, but with a fairly 



