26 Mr. T. D. A. Cockerell — Descriptions and 



in the middle; on the first segment the lateral portions of the 

 black area are truncate, and about as long as the median 

 portion measured by the interruption of the apical band ; on 

 the second segment the band gradually broadens laterally, 

 with indications of an oblique notch; on the third and fourth 

 the band is divided into two patches on each side, the inner 

 one oval, the outer on the third subquadrate, with a pointed 

 projection directed inwards, and on the fourth more or less 

 hourglass-shaped ; fifth segment with only an apical lunule ; 

 last ventral not prolonged or curved downwards. Legs black, 

 with the knees, apices of tibiae, and small joints of tarsi 

 ferruginous ; hind spurs dark, somewhat reddish. 



On account of the ornamentation of the abdomen it closely 

 resembles Triepeolus verbesince (Cldl.). The venation would 

 almost put it in Phileremus, but it is not very near to other 

 species so referred. 



Nab. Los Angeles, California, April 24, 1909 (F. Urinnell, 



Jr.). 



Triepeolus gabrielis, sp. n. 



$ . — Length about 7 mm. 



lilack, with the usual ornamentation, which dorsally, espe- 

 cially on the abdomen, has a yellowish tinge, but on the face, 

 pleura, &c. is white ; mandibles ferruginous ; labrum and 

 clypeus black, the former with two little tubercles near its 

 lower edge ; clypeus densely and minutely punctured ; eyes 

 brown, converging below ; antennae black, third joint slightly 

 reddish; vertex coarsely rugoso- punctate; mesothorax and 

 scutellum coarsely and very densely punctured ; pubescent 

 mark on anterior part of mesothorax forming a large reversed 

 U, of which the basin is about half filled in and the edges 

 flare outwards a little; scutellum hardly bigibbous, the lateral 

 teeth black and very short; pleura hairy all over, but in the 

 middle the hair is denser, making a sort of broad white band ; 

 tubercles and tegulae apricot-red. Wings broadly dusky on 

 apical margin ; marginal cell so blunt as to be practically 

 truncate ; second s.m. narrowed almost to a point above. 

 Femora with short silvery hair; legs black, the femora at 

 extreme apex, tibiae at apex and base, and tarsi ferruginous; 

 spurs light ferruginous. Abdomen with the ground-colour 

 intense black and the bands broad, that on first with a rather 

 wide interruption, on second and third with a linear inter- 

 ruption, on fourth and fifth entire; black area on first seg- 

 ment a broad band, obliquely truncate but with rounded 

 corners at sides ; upper edge of light band on second segment 

 with a double cuive on each side, the lateral enlargement 



