NORTH AMERICAN LEPIDOPTERA. 71 



The arrangement here is from Macroglossa to SmerintJms, and 

 whatever the just objections to the work, it is an extremely valuable 

 one to the student, bringing together all the known literature of" the 

 group to that date, and better generic characterizations than there- 

 tofore, — not much praise by-the-bye. 



Bearing date also in 1857, but probably not issued until after the 

 appeai'ance of Walker's work, is Horsfield and INIoore's Catalogue of 

 the Lepidoptei'ous Insects in the Museum of the Hon. East India 

 Company, vol. 1. 



Here the tribe " Sphinges" is divided into five distinct stirpes, 

 deriving their names from the form and shape of the larva, some- 

 what after the manner of the Wienei' Verzeichniss. 



The first stirps is not named, and is simply referred to as including 

 Oisfnia and allies. 



Stirps II, Elongake, has a cylindrical larva more slender and elon- 

 gate than in the other stirpes. It is generally without lateral ocelli, 

 the head is globular and the caudal horn short and rigid. The imago 

 has short wings, a diurnal flight, and the abdomen terniinated by a 

 broad and depressed brush-like ajipendage. The proboscis is long. 

 In their metamorphosis the species exhibit a slight affinity to the 

 Diurna. The typical genera are Sesia and Macroglossa. 



The third stirps — the Acrocephal^, AV. V. — has larvae with a 

 head almost triangular, or acuminate above, the body being obliquely 

 striated, generally with yellow, — naked and somewhat rugose ; the 

 caudal horn of moderate size, smooth and marked with a peculiar 

 color. The perfect insect is strikingly distinguished by its angulated 

 or excavated %vings. The })roboscis is very short or obsolete. The 

 typical genus is Smerintkm. 



The fourth stirps is called AMBLOCEPHALi^:. The larvse have an 

 ovate, truncated head ; they are nearly naked and even on the sui'- 

 face ; the caudal horn is lengthened, tuberculated and curved. The 

 perfect insect has entire, lanceolate wings ; the abdomen is marked 

 with oblique lateral striae. The proboscis is large and strong, and 

 this chai'acter is strikingly manifested in the pupa. The typical 

 genera are Acherontia and Sphinx. 



The fifth stirps, characteristically named in the Wiener Verzeich- 

 niss " Augen Raupen" larvce ophthalmica, has a larva with a small, 

 globose, retractile head, and is, moreover, strikingly distinguished by 

 the ocelli, with which it is marked, and which are also observed on 

 the chrysalis. These ocelli, or eyes, are placed in some genera behind 



