LEPIDOPTERA. 259 



The third Stirps, named AcrocepTialce or Spitzoliopf-raupen, Wien. 

 Verz. and Schrank, has a larva with a head almost triangular or 

 acuminated above, the body being obliquely striated, generally -with 

 yellow, — naked, and somewhat rugose ; the abdominal horn of mode- 

 rate size, smooth, and marked with a peculiar colour. The perfect 

 insect is strikingly distinguished by its angulated or excavated wings. 

 The proboscis is very short or obsolete. The typical genus is 

 Smennthis. Of this Stirps no transformations are contained in the 

 Company's Museum. 



The fourth Stirps, named Amblocephalce or Stumpfkopf-raupen — 

 obtuse-headed larva, — has a larva with an ovate truncated head ; it 

 is nearly naked and even on the surface ; the abdominal 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 character is strikingly 

 manifested in the pupa (see Plate IX., fig. 3a). The typical genera 

 are Acherontia and Sphinx. The metamorphosis is illustrated on 

 Plate YIII., fig. 6, and Plate IX., figs. 1, 2, 3, and 4. 



Ihe fifth Stirps, characteristically named in the Wiener Verzeichnis 

 Augen-raupen, larvae Ophthalmicce, 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 the head only, 

 while in others they exist in a regular row along the entire larva, 

 and in some cases are very prominent and brilliant, as appears in the 

 figures. The metamorphosis takes place on the surface of the earth, 

 the pupa being in some cases covered with a slight web. The pupa 

 is enlarged towards the head, and is generally provided with an 

 annular case, covering the proboscis. The proboscis is not so large 

 as in the preceding Stirps. In the perfect insect the abdomen is 

 long and acute, and the individuals in many cases have the habit of 

 a Vespertilio. 



The typical genera are Deilephila and Chceroeampa. The meta- 

 morphoses are illustrated on Plate IX,, fig. 5, and Plates X. and XI. 



