JUN 2 1897 



TRANSACTIONS 



OF THE 



AMERICAN ENTOMOLOGICAL SOCIETY 



VOLUN4E XXIV. 



A GENERIC REVISIOIV OF THE FTIEODONTID^ AlVD 

 IflEEAEOPHID^. 



BY HARRISON G. BYAR. 



Under these names I include the Notodontidse as recently recog- 

 nized. The family as such has been revised by the late Mr. Neu- 

 moegen and myself (Trans. Am. Ent. Soc. xxi, pp. 179-208). The 

 Arrangement of species there set forth needs scarcely any change, 

 but a few of the generic terms require correction when we come to 

 compare the European fauna. The principal error is due to my 

 having selected the wrong type for the genus Notodonta. 



I propose here to briefly bring together the generic terms used for 

 these moths as far as concerns the fauna of North America, Europe 

 and India. It is possible to include India from the valuable work 

 of Mr. G. F. Hampson. 



The Ptilodouts and allies represent a group of closely intergrading 

 genera, leading up from what is probably the lowest type of the 

 Bombyces. The group may be defined as Noctuid moths with 

 3-branched cubital vein and frenulum, of robust build, vein iii of 

 secondaries arising beyond the cell. The lowest genera (e. g. 

 Gluphisia) present smooth larvae with simple setse ; others have 

 variously humped or otherwise modified bodies. Then follows a 

 group in which the moths tend to lose the tongue, although not 

 sharply marked oflT by this character. The larvae, however, are 

 hairy; that is, they have developed warts and secondary hairs The 

 wart formation is peculiar, being characterized by three warts above 

 the stigmatal wart on the thorax, and thus contrasted with the par- 



TRANS. AM. ENT. SOC. XXIV. (1) JANUARY. 1897. 



