rackard.] l^t) [Feb. 3, 



of impressed areas, the subdorsal consisting of a large transversely situated, 

 acutely oval depression, one on each segment on each side of tlie body, 

 and those of the second lower series are about one-tliird as large as the 

 subdorsal ones. Low down on the side of the creeping disk is a row of 

 small round impressed areas. In front the red lop of tlie cross widens a 

 good deal, ending in the front edge of the second thoracic segment ; while 

 at the end of the body, what corresponds to the foot of the cross is nar- 

 rowed to an obtuse point. The skin is corrugated and somewhat granu- 

 lated, and the body in general is pale green, being concolorous with the 

 under side of the beech leaf. 



On each side are two rows of depressed areas, the upper row of ten 

 are oval, the smaller end pointing up, and tlie middle five on the purple 

 madder spot or arm of the cross are longer and narrower oval than those 

 in front or behind. The row of ten below are round sunken areas ; still 

 below, but quite near the second row, and alternating with those of the 

 second row, is a series often minute button-like round depressed marks ; 

 also most distinct on the purple madder of the arms of the cross. The 

 prothoracic segment and head are dull pea-green ; the head a little paler 

 and chitinous around the mouth-parts. The skin is rough, finely granu- 

 lated and punctured, but bearing no setae, except some sparse, minute, 

 slender ones around the edge of the creeping disk. 



The spiracles are situated just above the edge of the creeping disk. 



The " frass " or castings are irregular, short, barrel-shaped pellets. 



Two larvae were found on the wild cherry in which the anterior median 

 line is broken up into three reddish spots. In one specimen the reddish 

 cross is much paler than usual. 



(An unpublished figure by Emerton of a larva from Kittery, Me., 

 August 27, 1867, is the same species.) 



One found at Providence, on the oak, September 17, and figured by 

 Bridgham (285), is like the one above described, but the head of the red 

 cross is slenderer, and the whole cross is broader and larger in propor- 

 tion to the body ; the two arms of the cross are wider. In the middle of 

 the body on the plateau is a square, pale, sere brown and green spot. 

 Another specimen (Bridgham's Fig. 284) occurred September IG, on the 

 wi'chhazel. 



The larva of this species feeds on the under side of the leaf as do the 

 larvaj of Packardia elegans and Lithacodia fasciola. They all eat brown 

 patches here and there, or small holes in the leaf. 



The Larva op Heterogenea flexuosa Grote? 



The following description was drawn up Irom a larva received from 

 Mr. H. G. Dyar, of Rhinebeck, N. Y. Mr. Dyar writes : "I am not sure 

 of the determination of L. flexuosa, as I never raised but one." 



Length, 8 mm.; breadth, 4.5 mm. Body oval, thickest a little behind 

 the middle of the body. The median dorsal plateau is not well marked. 



