GRAPTA III. 



sides of face, several rather long black spurs, and numbers of others of irregular 

 sizes on the foce, some quite minute, part of them yellow, part black, each tipped 

 with concolored hair. (Fig. c.) 



Chrysalis. — Length .7 inch ; greatest breadth .24 inch ; shaped neai'ly as in 

 G. Comma; cylindrical, slender; head-case high, compressed transversely; on its 

 under side two protuberances, each ending in a short tubercle ; at each vertex a 

 short, stout, conical process, the space between square ; mesonotum elevated, fol- 

 lowed by a deep excavation ; the carina rising to a high, thin, nose-like promi- 

 nence ; wing-cases much raised above the general surface, depressed laterally ; 

 on the marginal border of ventral side a sharp protuberance ; on the abdomen 

 several rows of tubercles, mostly small, but those corresponding to the first lateral 

 spines of the larva large on the anterior segments ; those in the excavation sil- 

 vered ; color marbled with shades of salmon and olive. (Fig. d.) 



The larva fed on wild currant, and a number of examples were found by Mr. 

 Mead at Yo Semite and bred to the imago. I am thus able to correct an error 

 in Volume I., in which the larva and chrysalis of G. Busticus are attributed to 

 Zejyhyrus. 



As in the case of Husiicics, the present drawings have been made from alcoholic 

 specimens and a blown skin of the larva, aided by Mr. Mead's cai'efullj^ written 

 descrij)tions. 



Both larva and chrysalis closely resemble those of G. Progne, and these stages, 

 as well as the imago, show that the two species belong to one sub-group. 



