212 JOHN B. SMITH. 



"One example was taken by Rev. George D. Hulst, in Florida, in 

 suninier of 1878. 



" In Museum Strecker. 



" This Sphinx, of which I append a figure in order to exhibit the 

 great breadth of primaries, is without doubt the most remarkable 

 species yet discovered in this country. 



" Though evidently allied to the comferarum group its peculiar 

 bombycid ap[)earance distinguishes it at once from all species yet 

 known. Doubtless, like its nearest allies, it will be found to exist 

 in the larva state on some species of pine." 



Mr. Strecker's figure, if at all accurate, certainly does show a 

 remarkable looking form. The primaries have the apex rounded, 

 hind margin decidedly shorter than the outer margin. No structural 

 details are given, but its location at the extreme end of the present 

 sei-ies is probably correct. 



SMERINTHIN^. 



Head retracted, cumparatively small; palpi usually short, in 

 Cressonia only, exaggerated and divaricate at tip. Antenniie fusiform, 

 not recurved, and only very little curved at tip. In the male ciliated 

 or pectinated, in the female simple. Tongue rudimentary in all the 

 species. Thorax usually short, plump, convex ; sometimes with an 

 indistinct central ridge. Abdomen always untufted, cylindric, rarely 

 conic, usually rather obtusely terminated. Legs subequal, short and 

 weak, usually with only a single pair of small spurs at the ends of 

 the median and ])osterior tibiae. Vestiture woolley, fine and dense; 

 supra-anal plate in the male genitalia fiat and prolonged into a flat- 

 tened, obtusely rounded hook. Primaries always more or less angu 

 lated or dentate, less so in Cresso)iia ; inner margin always sinuate, 

 the hind angle always more or less produced. Frenelum in the male 

 very nmch reduced in size, barely discernible. Primaries without a 

 looj) for its reception ; in the female it is reduced to a mere brush of 

 short stifl" hairs. Primaries with eleven or twelve veins ; the same 

 species sometimes variable in this respect. Internal vein furcate at 

 base, I'unning to the anal angle; median vein giving off 2 at about 

 its middle ; 3 about midway between 2 and the end of the cell, where 

 4 continues the median vein ; cross-vein more or less angulated ; 5 

 from the cross-vein, nearer to 4 than to (i ; G and 8 from the subcostal, 

 the latter to tiie apex, giving ofi' 7 at about onc-cjuarter from its in- 



