EUMERUS. 257 



size and sliape, placed diagonally; upper ends approximate to one 

 another above centre of segment; posterior ends of 1st and 3rd 

 pairs reaching side margins near posterior angles of segments; 

 2nd pair of spots not attaining margin. All the spots bear a 

 little yellowish-white hair, which also occurs at the posterior 

 angles of the segments and about the tip of the abdomen. The 

 dark portions of the surface are covered with almost microscopic 

 black pubescence. Venter ilull aeneous, with some pale yellowish 

 hairs. Leys : femora ajueous-hlack, with rather tiiick yellowish 

 pubescence on hinder and outer sides, and microscopic pubescence 

 of the same colour on remainder of surface. Tibiae oeneous-black, 

 rather broadly pale redtlish-hrown at base. Tarsi blackish, emar- 

 ginations slightly reddish-brown ; hind metatarsi blackish on disc, 

 reddish-brown towards sides and on under side. Winf/s grey, 

 stigma blackish, inconspicuous; halteres pale yellowish. 



Lewjtli, 7 mm. 



Described from a single perfect c^ taken by Capt. Evans, E.E., 

 at Simla in August 1914, and presented by him to the Indian 

 Museum. Further specimens of each sex from Simla, ix. 1898 



199. Eumerus albifrons. Wall: (PI. VI, fig. 4.) 



Eumerus alh(frons, Walker, Ins. Saund., Dipt, i, p. 2:^4 (18o2). 

 Eimierus halictiformis, Brunetti, llec. lud. Mus. xi, p. 241 (1915). 



c? ?. Head: in J, eyes quite bare, touching for a short dis- 

 tance only, the front facets a little larger than the others. Erons 

 strongly punctate, shining black with greyish dust except for a 

 space bearing the two upper ocelli a little below the vertex, 

 and a space lower on the frons bearing the 3rd ocellus. 

 Blackish hairs on the frons rather thickly placed. Face 

 and the narrow occipital margin wholly dusted with ash-grey, 

 the former with whitish hair. Antenna) rather elongate, 

 blackish, 2nd joint wholly and the 3rd joint more or less, 

 dull reddish-brown on the basal part. In the $ the frons is 

 barely narrowed at the vertex, and at the level of the ajitenna? 

 is equal to one-fourth the width of the head; the lowest ocellus 

 is less far removed from the others than in the S ; the frons is 

 moderately well covered Mith yellowish-grey hair. TJwra.v 

 strongly punctate ; in ground-colour dusted with" bluish-grey, with 

 four large blackish spots filling most of the surface, anterior ones 

 more or less rounded ; two median dark stripes, leaving a grey 

 intermediate space; pubescence whitish-grey; pleurae grey with 

 whitish-grey pubescence ; scutellum c-eneous or cupreous, with thick 

 brownish-yellow hair ; hind margin pale. Abdomen shining black ; 

 on each of the 2nd, 3rd and 4th segments a pair of diagonallv 

 placed, grey, lunule-like, barely curved spots, beginning almost 

 ••ontiguous to one another in middle of segment near anterior 

 margin, and extending to posterior corners, which they attain. 

 Whole abdomen finely punctate. Venter dark. Leys: anterior 



s 



