Ceratocampidae 



Genus ADELOCEPHALA Herrich-Schaeffer 



As in the preceding genus, vein 1 1 of the fore wing is stalked 

 with veins 6-8, but the outer margin of the wing is not straight 

 as in that genus, and longer than the internal margin, but it is 

 convex and shorter than the inner margin. There are a number 

 of species belonging to the genus, which are indigenous in 

 Central and South America, but only one occurs within our 

 borders. 



(i) Adelocephala bicolor Harris, Plate X, Fig. 5, $ ; Fig. 6, 

 $. (The Honey-locust Moth.) 



Syn. distigma Walsh. 



The larva feeds upon the Honey-locust (Gleditschia) and the 

 Kentucky Coffee-tree (Gymnocladus). It is a rather common 

 insect in the valley of the Ohio, and ranges from the region of 

 the Great Lakes southward to Georgia and Kansas. 



Genus SYSSPHINX Hubner 



The insects assigned to this genus by recent writers do not 

 differ greatly in structure from those referred to the preceding 

 genus. The principal structural differences consist in the fact 

 that the antennae of the females are somewhat shorter and less 

 strongly pectinated, and the abdomen is generally longer, in some 

 species greatly exceeding the hind margin of the hind wings. 

 The genus is well represented in Mexico and Central America. 

 Only four species occur in our territory, two of which we figure. 

 (1) Syssphinx albolineata Grote & Robinson, Plate X, Fig. 

 7, $ . (The White-lined Syssphinx.) 



Syn. raspa Boisduval. 



The figure we give is sufficient to enable the student to iden- 

 tify this species which is common in Mexico, and also occurs in 

 southern Arizona. 



(2) Syssphinx heiligbrodti Harvey, Plate XI, Fig. 14, ? . 

 (Heiligbrodt's Syssphinx.) 



This very pretty 4310th, which may easily be determined by 

 the help of the figure we give, is not uncommon in southern 

 Arizona. The caterpillar feeds, it is said, upon Grease-wood 

 bushes. 



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