155 



antennae in both sexes, but Phragmatobia, Spilosoma Isabella 

 and Hyphantria,, etc., have. The maxillae of Eudryas 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 Arctice, 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 Grastropaclia and Odonestis placed immediately after 

 Saturnia, rather than Lasiocampa and Mriogaster? Their 

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

 Bombyx mori than Clisocampa, etc. On the other hand why 

 do not Pcecilocampa populi and Gnettiocampa lead to the Lipa- 

 ridce by their larvas-? Compare the caterpillar of P. populi with 

 Hypogymna dispar, and of 0. pityocampa with C'lidia geoyrapli- 

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

 have mistaken the place of Pentliophera and Limacodes. P. 

 morio and detrita are clearly Liparidce ; the antennas, venation 

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

 over, their caterpillars are described by Denis and Schiffer- 

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

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

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

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

 tians, and near Oerura. 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 Limacodes 

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

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

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

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



