296 [April 



the spaces on each side, postscutellum, metathorax except an oval spot 

 on each side, and the tegulae, black ; metathorax sculptured similar to 

 A. vulgaris, except that the elevated lines are better denned. Wings 

 as iu vulgaris. Legs color of the body ; the four anterior coxa), all the 

 trochanters, tips of the middle tibiae and their tarsi entirely, tips of the 

 posterior coxaa, of their femora, and their tibioe and tarsi entirely, 

 black ; sometimes the posterior tibire has a more or less distinct yellow- 

 ish-red annulus as in vulgaris. Abdomen as in vulgaris but more slen- 

 der and scarcely subcom pressed at tip. Length 2>\ — 3| lines; expanse 

 of wings 63 — 7 lines. 



Sixteen specimens. This may be the male of A. vulgaris, as the 

 sculpture is very similar but most of the head and metathorax are black. 



:'-. Agathis atripes, n. sp. 



Rufous : head, antennae, tegulse, breast, disk of metathorax and the legs, 

 black: wings fuliginous; basal segment of abdomen deeply sulcate. 



Male. — Pale rufous, shining, slightly pubescent; head smooth and 

 polished, entirely black, the rostrum not much prolonged, truncate at 

 tip; antennae about as long as the body, entirely black, very slender. 

 Thorax smooth and polished, mesothorax distinctly trilobed. the middle 

 lobe convex, without any central groove ; pectus entirely, and the pleura 

 beneath, black ; scutellum subconcave, the excavation in front very deep, 

 divided in the middle by a single carina, the spaces on each side black; 

 metathorax indistiuctly sculptured, the upper surface almost entirely 

 black, the dorsal middle with an elongate enclosed space which has a 

 central longitudinal carina; tegula black. Wings uniform fuliginous, 

 with two or three subhyalinc patches beneath the stigma; areolet sub- 

 triangular ; posterior wings slightly iridescent. Legs, including the 

 coxae, entirely black. Abdomen elongate-ovate, subdepressed, entirely 

 pale rufous, polished ; first segment twice broader at tip than at base, 

 deeply sulcate above especially at base, with a sharply defined longi- 

 tudinal carina on each side, the sulcus obsoletely aciculate ; incisure 

 between the first and second segments excavated on each side; second 

 segment with a well impressed transverse line before the middle and 

 another just before the base, these lines are faintly crenulated; remain- 

 ing segments smooth and polished, the apex obtuse. Length 3 £ lines ; 

 expanse of wings 61 lines. 



Two specimens. 



