EUMERUS. 259 



grey-dusted and with greyish pubescence. Ocelli wide apart, the 

 two spaces occupied respectively by the anterior ocellus and the 

 hinder pair being nearly bare and bearing bhick hairs, the inter- 

 vening surface covered witli greyish dust. Face and lower part 

 of head with snow-white touientuin and soft concolorous pubes- 

 cence ; face separated from frons at nearest approach of eyes by 

 a narrow but very distinct shining black bare band. Antennae dark 

 brown or blackish; 2nd joint unusually loiig, tuo-thirdsas long as 

 ^rd, bristly above ; 3rd elongate, much longer than in any other 

 Indian species, three times as long as wide, tip obtuse, arista 

 •dark. Occiput black, the ground-colour greyish in patches. 

 Thorax black but ground-colour in considerable part dusty-grey, 

 so as to leave, when the thorax is viewed from behind, two 

 median stripes, two large spaces before suture and two behind it 

 all blackish but of ill-detined shape. Sides of thorax very slightly 

 shining black, grey-dusted and with a little grey pubescence. 

 Scutellum rather dark aeneous-green, generally quite differently 

 coloured from thorax and abdomen, but sometimes less conspicu- 

 ously so ; hind margin distinctly greyish. Dorsum of thorax 

 Avirh short, rather depressed, yellowish-grey pubescence, scutellum 

 with similar but longer pubescence. Abdomen black, with a pair 

 of barely curved grey elongate spots of the usual shape on 2nd, 

 3rd and 4th segments, diagonally placed, their upper ends nearly 

 meeting towards middle of anterior margin, tlieir outer ends 

 reaching hind corners, the second and third pairs united on side 

 margins or along under side. A narrow median stripe begins at 

 about middle of 4th segment and is continued to tip of abdomen; 

 it is more conspicuous in $ , Pubescence of abdomen following 

 ground-colour. Ler/s : coxae and anterior femora dark brown, tips 

 of latter and sometimes base also, brownish-orange ; hind femora 

 all greenish-black or aeneous, or sometimes with upper and inner 

 sides more or less brown, exceedingly broadened vertically, with 

 a row of short teeth on apical half of under side. Tibiae brownish 

 or orange on basal half, blackish apically ; tarsi brown, metatarsi 

 black ; pubescence of legs greyish or whitish. Wings nearly clear; 

 stigma yellowish-brown; halteres brownish-orange. 



Lenr/th, 4-5.] mm. 



Described from two d 6 Ji'xl "ine $ $ from Pusa ; all bred, 

 30. iv. 1908, in stem of Euphorbia sp., " C. No. 696," and 

 5. vi. 1907, in stem of " fSig " (? Fig), " C. No. 535." Ti/pe d and 

 2 sent to the British Museum, cotype c? and 5 $ in the Pusa col- 

 lection. One $ fi-om Abu (Kurse). This species is strikingly 

 distinct from all others by the very elongate narrow antennae and 

 by the median stripe on the 4th abdominal segment. The yellow- 

 margined scutellum also separates it from the majority of the 

 Oriental species. All the specimens are in inferior condition, but 

 from amongst them it has not been difficult to diagnose the 

 specific characters. 



