50 SPECIMENS OF 



belongs to a section of the genus Apatela, charac- 

 terized by the long and narrow, but hardly pointed 

 primaries, the abdomen well exceeding the hind 

 wings, tlie thorax elevated. It is allied to the Texan 

 Extricata ; and probably Xyliniformis and Litho- 

 spila will be found congeneric when the immature 

 stages of all are known. The Calif or nian species 

 described by me as Spinea and Luplni belong to a 

 diflPerent section. The wings are wider, the species 

 more Bombyciform, the thorax globose, the head 

 sunken. I have recently indicated the sections into 

 which the North- American Apatelce seem to fall. 

 I propose to designate the section of which Spinea 

 is type by the name Ilerolonche. 



Apatela Edolata, Grote, ' Papilio,' i. p. 153. 



5. Eulonche Lanceolaria. 



This interesting form is allied to J^. Oblinita of 



Abbot and Smith. It differs in both sexes by the 



narrower, more lanceolate primaries. It is more 



bluish than Abbot's species, with less markings; 



but the transverse posterior line is to be made out, 



continuous and angulated, not fragmentary and 



sinuate as in its ally. The hind wings are pure 



white and have no discal marks. My friend Mr. 



Holand Thaxter has collected this species in June 



in Massachusetts. To me it is in many respects 



the most interesting of all the Apatelce. The section 



Eulonche contains Oblinita, Lanceolaria , and In- 



solita ; it is characterized by the long, pointed, 



almost Notodontiform primaries and sunken head ; 



