LONG S SECOND EXPEDITION. 245 



ous ; venter blackish, segments dull yellowish on their posterior 

 and lateral margins; abdomen slender at base, gradually dilating 

 behind. 



9 Length rather more than one-fifth of an inch. 



The wing nervures are arranged as in P. baumhaueri Meig. 

 It is probably closely allied to the carbonaria of Bosc, which, 

 however, is described to be altogether of the same form as the 

 tipuloides Bosc, to have a black thorax and obscure feet; whereas 

 ours is a much more slender insect than the tipuloides as repre- 

 sented by Coquebert. 



SCIOPHILA Hgg. 



1. S. pallipes. — Brownish-black, with gray short hairs; an- 

 tennae and feet whitish. 



Inhabits North-west Territory. 



Antennas (at least the two basal joints) yellowish-white ; tho- 

 rax with numerous scattered, short, gray hairs, which are fewer 

 in number and more prominent behind; wings dusky; poisers 

 elongated, yellow-white, at base dusky ; feet yellow-white ; abdo- 

 men with numerous prostrate, short, gray hairs. 



% Length to tip of the wings nearly one-fifth of an inch. 



The nervures of the wings correspond with those of S. hirta 

 Hgg. 



2. S. littoralis. — Pale yellowish ; thorax trilineate ; abdo- 

 men fasciate with fuscous ; feet dusky at tip. 



Inhabits North-west Territory. 



Vertex and a line extending down between the antennae upon 

 the hypostoma, blackish ; antennae dusky, two basal [362] joints 

 yellowish; thorax with a double, brown, middle line, attenuated 

 and abbreviated behind, and a brown approximate line on each 

 side abbreviated before; a small fascicle of hairs beneath each 

 wing, and a dusky spot over the insertion of each foot; wings 

 immaculate; poisers yellowish-white ; abdomen slender at base, 

 gradually dilating towards the tip, dull-yellowish, hairy ; inci- 

 sures and tip dusky; feet dull-yellowish, towards their tips 

 dusky. 



Length of the body three-twentieths of an inch. 



I obtained this species on the rocky coast of Lake Superior, in 

 a thicket of small bushes. The nervures of the wings corres- 



