210 A Classification of Lepidopterous Larvse. 



Cicinnus melsbeimeri Harris. 



A single cervical shield ; body granular ; feet normal, the abdo- 

 minal ones ver}' short. Spiracle on 8th abdominal segment higher 

 up than the others. Anal plate very large, covering the feet, con- 

 tinuous with a hardened area on the posterior part of the 8th seg- 

 ment, bounded in front bv a transverse elevated fold. Setae fine, 

 short, very obscure so that their position could not be accurately 

 determined; but apparently as in the following: — 



Lacosoma chiridota Grote. 



A single cervical shield, but its distinctive coloration extends 

 back on the posterior thoracic segments ; feet normal, the anal 

 plate scarcely enlarged. Body smooth, the sette arising from dis- 

 tinct tubercles ; i anteriorly, ii posteriorly, only a little below i, 

 iii superstigmatal, a little anterior, iv and v in line subventrallj', 

 vi above base of leg, vii consisting of several hairs on the base of 

 leg, and viii single, distinct on the apodal segments. 



Family Sesiidee. 



The SesiidiB (= ^Egeriidfe) have usually been classified next to 

 the Sphingidfe, and this course is still followed by Dr. Packard. 

 Less conservative authors have reached the conclusion that this is 

 erroneous, and Mr. W. F. Kirby has omitted the family from his 

 "Catalogue of Sphinges and Bombyces." A study of the larvae 

 fully confirms this view, and I would place the family among the 

 Microlepidoptera. Prof. Comstock has kindly given me four larvae. 



Sannina exitiosa Say. 



The tubercles are very small, but distinct, and all bear setae. 

 Tubercles iv and v are closely approximated, one being situated 

 immediately above the other. There are two distinct substigmatal 

 folds or ridges, each with two corneous patches. On the upper 

 one, iv and v are in the anterior patch, and on the lower vi is in 

 the posterior patch. The three tubercles of vii are on the anterior 

 side of the base of the leg. Segments strongly folded, biannulate. 

 A distinct suture between segments 9 and 10. 



Harmonia pini Kellicott. 



In this species the set£e are much reduced, but the tubercles have 

 large, conical, corneous bases, so that they suggest low warts. 

 Iv and V are on the same elevation, and the three tubercles of vii 

 are in an oblique row as in the Hepialidas. The larva is, other- 

 wise, very similar to the preceding. 



