155 



antennse in both sexes,^ but Phrac/matohia, Sjnlosoma Isabella 

 and Si/jjJiantria, etc., have. The maxilloB of Eitdryas are not 

 much longer than the thorax, and the palpi are rather small 

 and short. The eyes, especially in the males, are large, as in 

 Callimorpha, etc. 



The posture of the larva of Eudryas when at rest, is like 

 that of some of the Arctke, e. g., Euchcetesegle, and still more 

 apparently like that of Agarista, which it resembles strikingly 

 in form and coloring. 



In looking over Stephens' catalogue, and also that of Mr. 

 Curtis, some queries and doubts have occurred to me respect- 

 ing the arrangement of certain genera in these works. Why 

 are not Grastropacha and Odonestis placed immediately after 

 Saturnia, rather than Lasiocaynpa and Eriogastcr'^ Their 

 larvce are certainly more Sphinx-like, and therefore nearer to 

 Bombyx mori than OUsocampa^ etc. On the otlier hand why 

 do not Poecilocampa pojmli and Cnethocampa lead to the Lipa- 

 ridce by their larva3 ? Compare the caterpillar of P.popidi with 

 Hypogymna disjmr, and of C. pityocampa with Clidla geograph- 

 ica, and see the close resemblance. These gentlemen seem to 

 have mistaken the place of Pentliopliei'a and Limaeodes. P. 

 morio and detrita are clearly Liparidce ; the antenna}, venation 

 of their wings, and, general appearance indicate it, and, more- 

 over, their caterpillars are described by Denis and SchifFer- 

 miiller as having only six tubercles on each ring, whereas they 

 have ten or more. If Mr. Stephens had linown our American 

 Limaeodes (not all of them true Limaeodes^ but allied to it), he 

 would not have hesitated to put this genus among the Notodon- 

 tians, and near Cerura. By thus settling the place of Lima- 

 codes^ we of course decide that of Psyche. P. graminella, $ , 

 the only foreign species in my collection, resembles Li^nacodes 

 cippus closely in the venation and form of the wings ; but I 

 must also admit that in this respect it comes near to PentJiojjJtera 

 and Orgyia. However this may be, if Oiketicus and Psyche 

 stand together in one group, then this group must come between 



