June, 1896.] DyAR : HeaD SeT^ OF LePIDOPTEROUS LARV.t. 



93 



within the circle of the eyes above and behind the second ocellus, viii 

 is before the second ocellus, and ix is above the base of the antenna. 

 The clypeal setje are shown, but not numbered. Figure 2 represents 

 C. vielshehnerii. It is evident at a glance that the spathulate seta or 

 antenna-like appendage is the fourth epicranial seta. The head of C. 

 i/ielsheimerii is coarsely roughened with broad rounded pits. All the 

 upper setae (namely i and ii on epicranium and the three upper clypeal 

 setse) are greatly reduced, only tiny rudiments remaining. Seta iii is 

 small but distinct, iv is enormously enlarged and flattened, situated 

 above and behind the fourth ocellus. All the lower setae are normally 

 developed. 



Cicinniis belongs to the Microlepidoptcra (Tineides), and the exact 

 position of its head setfe is in many respects more directly comparable 

 with other Tineides. For example in Plutella porrectella, seta viii is 

 situated before the fourth ocellus as in Cicinnus and not low down near 

 seta ix as in the Noctuidous larva shown. However, I have preferred 

 to figure the Noctuidous larva, as the comparison is thus given a wider 

 scope. 



DESIDERATA OF NORTH AMERICAN NOTODON- 



TIDiE. 



Bv A. S. Packard. 



The following gaps or desiderata occur in our knowledge of the 

 larvae or the life-history of the North American Notodontidae, and at- 

 tention is drawn to them here in order that collectors and students may 

 aid us in filling them up. It is particularly requested that the desired 



