44 E. T. CRESSON. 



It!. Siiiirra lecta, n. sp. 



% 9- — Black; face, mouth, broarl anterior orbits not reaching summit of 

 eyes, posterior orbits dilated beneath, and scape beneath, lemon-yellow ; flag- 

 ellum beneath and at tip fulvous; thorax densely punctured, pubescent ; pro- 

 thorax yellow above, interrupted medially and posteriorly by a black spot on 

 each side, lateral anterior margin, also yellow; mesothorax with two short, ob- 

 lique, yellow lines ; scutellum large, prominent, convex, lemon-yellow, basal 

 and apical margins narrowly black, sometimes a small black spot on basal 

 middle; tegulse lemon-yellow; wings faintly dusky, iridescent; four anterior 

 legs, including their coxae, lemon-yellow, anterior femora with a black spot at 

 base behind; posterior coxae with a broad yellow stripe beneath; their femora 

 with upper edge, not reaching apex, and basal half beneath, broadly lemon-yel- 

 low, also a small spot on lower edge between middle and apex, on inner side 

 the upper edge, the extreme base and a large subapical spot, also lemon-yellow, 

 teeth numerous and minute; posterior tibiae yellow, black at base and apex: 

 tibiae yellow; abdomen small, smooth, shining, dark ferruginous, immaculate, 

 piceous towards apex above ; petiole short, black. Length .20 — .23 inch. 



Hah. — Mexico. (Prof. Sumichrast.) Two specimens. 



17. Smicra ambigua, n. sp. 



% . — Black, pubescent; head lemon-yellow, vertex and occiput black : flagel- 

 lum fulvous beneath and at tip, scape yellow beneath ; prothorax yellow with 

 a large black spot in front; mesothorax with two broad oblique stripes on disk 

 and lateral margins, yellow; 6cutellum large, prominent, convex, yellow; 

 a small spot on basal middle and a short band on apical margin, black : pleura 

 with two spots beneath wings, that beneath tegulae small ; tegulae pale yellow ; 

 wings tinged with dusky, pale at apex; legs lemon-yellow; posterior coxae black, 

 yellow beneath, their femora on each side with a large irregular black spot on 

 disk and another at apex, sometimes confluent, the teeth numerous, minute and 

 black; posterior tibiae broadly black at base and apex; abdomen small, sub-glo- 

 bose, fulvo-ferruginous, sometimes darker on apical half, with a stain on each 

 side of first segment and a band or two spots on base of second segment, pale 

 yellow ; petiole short, not half the length of posterior coxae, black, more or less 

 pale at base. Length .20 — .25 inch. 



Hub. — Mexico. (Prof. Sumichrast.) Five specimens. Closely al- 

 lied to lecta and may prove to be a variety of that species. This seems 

 also to approach abdominalis, Walk., which however is said to have 

 the petiole long and the abdomen piceous. 



18. Smicra arcana, n. sp. 



%. — Robust, black ; head yellow, large spot or vertex enclosing ocelli, occi- 

 put, clypeus, dot beneath eyes and tips of mandibles black; antennae black, 

 scape yellow beneath ; large mark on each side of prothorax, two oblique spots 

 an middle of mesothorax, two large spots on scutellum, postscutellum and te- 

 gulae, yellow; thorax densely and confluently punctured: wings hyaline; 

 four anterior legs yellow, their coxae, trochanters and base of femora black : 

 posterior coxae black with a pale yellow spot beneath ; their femora large, yel- 

 low on outer side, with a large irregular, submedian black band not reaching 

 upper edge but curving to base which it attains by a narrow line, apex with a 

 black spot, inner side blackish, with upper margin and a broad band near apex, 



