﻿June, 1895.] Packard. On Larv.« of Hepialid.^. 11 



In the absence of any figure of a native form, I insert camera 

 drawings of two common European species* to show that while they do 

 not differ much in shape, they vary much in the size of the flattened 

 tubercles or chitinous plates from which the seta^ arise. 



PI. IV, Fig. I, represents a dorsal view of the European Hepialiis 

 hiimiili. 



PI. IV, Fig. 2, A side view of the same specimen. It will be 

 seen that the prothoracic plate is rather large, while the setiferous 

 tubercles on the second thoracic segment are of the same size as those 

 of the abdominal segments, but those of the second row on the third 

 thoracic segment are about twice as large. This seems a simpler form 

 than the next species figured, as the flattened tubercles give rise to but 

 a single hair. 



In the second species, Hepialiis hectiis (PI. IV, Figs. 3 and 4), 

 there is a considerable amount of divergence from the simple, primitive 

 form of H. hiimiili. On the second and third thoracic plate there is a 

 medium dorsal plate bearing four setae, and behind on each side a large 

 sub-dorsal plate bearing three short setre. On the abdominal segments 

 1-8 are four dorsal setae and three lateral setae, arranged as represented 

 in the figure, one being situated above the small spiracle and two be- 

 hind. The segments are subdivided into four wrinkles, more or less 

 indistinct in the blown specimens which are stretched out abnormally. 



PI. Ill, Fig. 4. I also add a figure of the front of the head of 

 the pupa of Hepialiis Jiiimiili, which with that of QLnetiis vircscens 

 from New Zealand, I owe to the kindness of Dr. T. Algernon Chapman. 

 The structure of the head is very peculiar. On the vertex are promi- 

 nent callosities, giving strength to the head in breaking out of the cell. 

 The eye is large, divided by a distinct line, the outer side of the eye 

 more or less corrugated. Directly under the eye are the large triangular 

 maxillary palpi {jnx p). The maxillae themselves are short, but not 

 shown in the figure. The clypeal region is narrow, with tubercles and 

 rugosities; the labrum is scarcely differentiated from the front edge of 

 the clypeus, but is slightly bilobate on the base. On each side are 

 what I call the paraclypeal pieces or sclerites (/), of the homology of 

 which I am not sure, unless they are identical with the tubercles 

 seen in most Lepidoptera on each side of the labrum, and formerly re- 



* For blown specimens of these and other lep dopterous larvre, as well as 

 pupae and cocoons, I am indebted to the generosity of my friend, Dr. Otto Staudinger, 

 of Blasewitz, Dresden, Germany, who kindly selected them from his immense collec- 

 tion of blown larvae and other Lepidoptera. 



