450 Mr. W. F. Kirby's descriptions of 



thickly punctured, the rest more sparingly ; segments 2 — 4 

 greenish, 2 and 3 with a large yellow spot on each side, and 

 segment 4 with a small one on each side ; wings deep violet- 

 purple. 



5 . Black, smooth and shining, sparingly punctured, except on 

 the prothorax, front of mesothorax, metathorax, and the hinder 

 portions of the segments of the abdomen ; post-scutellum with a 

 short transverse yellow streak, thick in the middle and narrow at 

 the ends, and segments 2 and 3 with a large yellow spot on each 

 side. In one specimen there is also a yellow dot on the sides of 

 the prothorax, and a small perpendicular yeUow dash on the 

 Bcutellum. Wings deep violet. 



Hah. Trinidad. 



Allied to D. guttata, Burm., but in that species (apart 

 from colour differences) the male is more hairy, and the 

 female is much less thickly punctured towards the 

 extremity of the abdominal segments. The supposed 

 variety of the male of D. guttata, mentioned by Saussure 

 and Sichel (Cat. Scol., p. 131), probably belongs to 

 this species. 



Genus V. Elis, Fahr. 



Elis lugens, n. s. (PI. XV., fig. 8). 



Long. corp. 29 mm. ; exp. al. 50 mm. 



$ . Dull black, the sides and legs hairy ; antennas rather stout ; 

 middle of the clj'peus smooth, surrounded with large punctures ; 

 thorax closely and evenly punctured, with a very small oval longi- 

 tudinal smooth spot in the middle of the mesothorax ; abdomen 

 with a very slight greenish iridescence, very finely and evenly 

 punctured, the first segment with rather larger punctures ; wings 

 very long, narrow, and pomted, smoky yellowish hyaline, with 

 pitchy-black nervures, the middle of the wings rather lighter ; the 

 third cubital cell very large and almost square. 



Hah. Eio Grande do Sul. 



Very distinct from any previously-described species, 

 and may ultimately form a new genus. 



Elis Rudaha, n. s. 



Long. corp. 14 mm. ; exp. al. 24 mm. 



(J. Black and yellow, clothed with grey hair. Face very 

 hairy, antennae and mandibles ferruginous-brown, sides of labrum 

 yellow. Thorax black; the prothorax, a stripe on the pleura, at 

 first straight, and then narrowed and curved backwards, the 



