1864.] 587 



Pupa. — March 16 I found a gall with the insect in pupa. A pupa 

 examined April 15 was yellowish a little mottled with sanguineous, but 

 in all other respects exactly resembled that of C. .s. strnhiloides when 

 placed side by side. Another examined April 21 had the thoracic 

 bristle rather robust at base and tapering towards the tip, but in the 

 dried specimens this part is undistinguishable from the same part in 

 C. s. sfrobiloides. April 23 of 3 pupae examined one was pale sangui- 

 neous, with the wing-cases and legs pale yellowish and the abdomen 

 mottled with yellowish between the sutures, and two were blackish, in- 

 cluding the wing-cases and legs, with the abdomen sanguineous or dull 

 lake-red broadly vittate dorsally with fuscous. An hour afterwards the 

 two last developed into the imago state. Length (3 dried specimens) 

 .15 — .17 inch. The empty pupal integument (11 specimens) is nearly 

 pure white throughout. 



Imago. C. s. rhodotdes a. sp. — The imago S 9 is undistinguish- 

 able from that of C. s. hrassicoides, except as follows : — 1st. The an- 

 tennae % are 23 — 25-jointed (2-f-21 to 2-f-23), with the last joint 

 elongate and sometimes even in the 25-jointed antenna appearing 

 to be composed of two connate joints. In a single S , which has 

 only one antenna, the antenna is 21-jointed (2-(-19,) the last joint 

 very small and without any pedicel, and I counted the joints as 

 " 20 or 21 " in the same specimen when recent. Occasionally in the 

 same specimen there is one more joint in one antenna than in the other. 

 '2)hL As in C s. sfrobiloides, C s. gnaphdJioides and G. s. siliqua, the 

 hair of the thorax is whitish in.stead of blackish, and it is more con- 

 spicuously whitish than in the last-named species. 3rc7. As in these 

 species, the subterminal, lateral hairs of the dorsal joints of the abdo- 

 men are longer, denser and whiter than they usually are in S. c. bras- 

 sicoidf'K, and the subterminal, transverse, glabrous line seen in some 

 C •-<. brassicoides is not perceivable. 4/7;. The legs are rather whiter 

 than is usual in G. s. brassicoides. On April 21 a S emerged from 

 the pupa under my eyes. As it came out, the abdomen had the sutures 

 widely sanguineous and the tip sanguineous, the dorsal space between 

 the sutures covered with appressed brown hairs which occupied the 

 medial •] of each joint. The venter was dull yellowish. Three hours 

 afterwards the dorsum of the abdomen, including the sutures, was en- 

 tirely fuscous, and also the venter except the tip and forceps which were 



