200 JOHN B, SMITH. 



The early stages have been mentioned, but scarcely well described, 

 by several authors. The species has been raised several times to my 

 knowledge, and a good description ought not to be long among the 

 desiderata. It has been figured by Boisduval, and shortly desci"ibed 

 by Clemens and Strecker. 



C'ERATOMIA Harr. 



Sill. Joui-D. 36, 286-293. 



Head small, retracted, with a slight interantennal tuft ; antennae 

 subfusiform, the hook distinct, long, but not abrupt. Palpi small, 

 slender, hardly reaching the middle of front, the vestiture not heavy. 

 Eyes small, not perceptibly fringed, not at all prominent. Tongue 

 reaching about the end of thorax, not very strong. Thorax short, 

 but little advanced before the base of the wings with short, stout, 

 post-thoracic tufts and scale ridges along inner edge of patagiie. Ab- 

 domen cylindrical, tapering to the tip, untufted, the segments ])oste- 

 riorly spinulose. The legs are short, weak, subequal, spurs of middle 

 and posterior tibiae small. Tibiie not spinose, except that the fore 

 tibia has usually some short, stout terminal spinules ; first joint of 

 anterior tarsi with three stout outer claw-like spines and a smaller 

 spine at tip of second joint. 



The primaries large, with eleven or twelve veins ; the number 

 being variable in the same species, outer margin oblique, entire, or 

 with a slight excavation at the end of vein two. Secondaries with 

 outer margin entire, except a slight rounding out on the end of vein 

 lb. The genitalia are variable, that of amyntor having the supra- 

 anal plate produced into a broad, somewhat irregular, pointed hook, 

 the inferior projection reduced to two points ; the clasper is also 

 unique and will be further described hereafter. In the other species 

 the supra-anal plate is more laterally conq:)ressed, the upper hook 

 short and not curved, the lower nuich nai-rower, upcurved at ti{), 

 altogether more Sphingiform, as is also the clasper. 



To the single species usually placed in this genus I add the species 

 usually classed as Daremma. The only difference that can be dis- 

 covered in the imagos excluding the genital characters are, that in 

 amyntor the primaries are very slightly excavated above the anal 

 angle, while in the others this character is not so noticeable in the 

 majority of specimens, though it is easy with series of each species 

 at command to find specimens of hageni and undulosa that will 



