246 EDWARD NORTON. 



the fourth joint, eaiargerl in -middle, third and fourth joints largest to- 

 ward apex, at apex cup-shaped, apical joint short; each of the three 

 ocelli in a larsre, shallow, separate, pentangular basin, extending from 

 the upper ocelli toward the eyes ; nasus hardly emarginate, mandibles 

 stout, second tooth prominent, with several projections beneath; liasns 

 and labrvim white ; prothorax, mesothorax and teguhe rufous ; the 

 four anterior legs pale beneath, with more or less of black above; pos- 

 terior coxffi and femora somewhat pale beneath ; inner claw tooth large 

 and near the tip; upper wings clouded, marginal dividing nervure re- 

 ceived in middle of third submarginal cell, which also receives the se- 

 cond recurrent nervure near its bjise ; under wings appendiculate, or 

 with the outer submarginal partially closed at margin. 



Var. The depressions about the ocelli indistinct; a deep mitre- 

 shaped sinus above the antennfe; most of scutel ruf)us. 



Mass., Conn. U. S., (Say). 



The larvae are 22-footed ; skin smooth, body somewhat enlarged in 

 middle and slender toward the tail. While growing, their color is 

 Ijo'ht green above, with two transverse rows of black thorn-like points, 

 alternately sis and four in number across each ring, body yellow back 

 of the head, beneath, and the third segment from the tail, with head 

 and tip of tail, black. They live upon vine-leaves and are very de- 

 structive, feeding in companies, often of 20 or 30, on the lower side of 

 the leaf, and eating it all as they go. from the edge inward. They un- 

 dergo their transformation in the ground. 



Two broods appear in a season. The young of the second brood re- 

 main beneath the ground during the winter. 



These insects are very destructive to the vines, oft(Mi completely 

 stripping them of their leaves. I first saw them about ten years ago 

 on vines about five miles from my home, but my own vines have never 

 been attacked until this year, 18G7, when the larva? appeared in great 

 numbers August 6th. I bred from one of the pupj\i, 8ept 2od, the 

 JSassus Imnfaris, Say, 9 . 



I have retained the name of *S. vitis, because it seems more appro- 

 priate to the insect, although the name given by Say has the priority. 



2. S. inhabilis. 



Selandria inhahilis, Harris' MSS. 



Xortoii, Bost. Troc. viii, 1861, 220, 2, 9. 

 Sliining black, anterior half of thorax rufous. Length 0.16. Br. wings 0.40 

 inch. 



9 . Jilack ; autcnnaj short, filiform, second joint half as long as first, 

 apical joint slinrt ; face below the ocelli roughened and dull; labrum 



