DESCRIPTION OF PRINCIPAL STAGES. 



19 



destined to continue and to conclude the yearly cycle of life for the 

 preservation of the species, 

 the following descriptions 

 of some of the principal 

 stages are herewith in- 

 cluded. 



SEXUAL GENERATION. 



The larva-like sexes of 

 the species, which, toward 

 the end of September and 

 early in October, occur on 

 the trunks of maples, are 

 rather small and without 

 a rostrum for the absorp- 

 tion of food. 



SEXUAL FEMALE. 



The sexual females, as fig. S.—ProcipMlus tessellata: Sexual female 



found under loose bark of ^°*^ ^°*'°"^- (o^^inai.) 



maple, are of an orange color, with the sides of the body more or 



less distinctly grayish 

 green. They are elon- 

 gate-oval and rather 

 plump, and contain only 

 one large orange egg, 

 which reaches to the 

 prothorax. The legs 

 and antennfe are whit- 

 ish; the eyes small and 

 black. The posterior 

 lateral angles of the 

 prothorax and of the 

 first abdominal segment 

 are rather prominent, 

 while similar though 

 smaller angles are also 

 present on all of the 

 other abdominal seg- 

 ments except the termi- 

 nal one. The antenna? 

 are rather short and 



Fig. 4. — Prociphilus tessellata: Male and antenna. 

 (Original.) 



reach for a short distance beyond the anterior margin of the meso- 



