LONG S SECOND EXPEDITION. 247 



bands more obvious at the costal margin, one of which is near 

 the middle, widely interrupted on the disk, and the other near 

 the tip; metathorax black; feet white-yellow at base, dusky 

 towards the tip. 



Length to tip of the wings nearly two-fifths of an inch. 



A large and handsome species. The wing nervures agree with 

 those of Asindulum punctatum Latr., excepting that the second 

 nervure is continued a short distance beyond its transverse ner- 

 vure, which latter enters the intermediate cellule at the basal 

 angle. 



5. S. OBLIQUA. — Pale yellowish; thorax four lined; tergum 

 fasciate. 



Inhabits North-west Territory. [364] 



Head black; hypostoma and base of the antennse yellow; 

 thorax with two oblique, fuscous lines confluent at the mid- 

 dle of the base ; and a dilated fuscous line each side, much ab- 

 breviated before and hardly reaching the basal edge; wings 

 slightly tinged with dusky, immaculate ; poisers white; feet 

 white, dusky towards the tip ; tergum, segments with blackish 

 posterior margins; last segments entirely blackish; anal segment 

 yellow. 



Length % nearly one-fifth of an inch. 



The wing nervures are arranged altogether like those of Asin- 

 dulum punctatum Latr. Closely allied to S. fasciata nobis, but 

 may be distinguished by the narrow, oblique lines of the thoracic 

 disk. 



LEIA Meig. 



L. ventralis. — Deep black, polished; wings fasciate near the 

 tip, feet yellowish. 



Inhabits North-west Territory. 



Head a little hairy ; palpi and three basal joints of the an- 

 tennae yellowish; remaining joints of the latter fuscous ; thorax 

 with sparse hairs; a whitish humeral spot ; wings hyaline with 

 a dusky band near the tip, which does not reach the thinner 

 margin, and a dusky tinge or line between the ultimate am! 

 penultimate nervures; poisers with a fuscous capitulum and 

 yellowish stipes ; feet yellowish-white ; tarsi dusky; tergum hairj ; 

 venter pale yellowish. 



