CERAMBYCID.E 233 



thorax usually nearly as wide as the elytra, very transverse, more 

 parallel or with feebler medial lateral tooth, the elytra strongly 

 sculptured. Atlantic regions 3 



Antenna! joints (cf) deeply sinuate beneath at tip, the prothorax gener- 

 ally narrower and with much more pronounced medial tooth at the 

 sides; elytra more oval, generally less obtuse behind, less strongly 

 or deeply sculptured though sometimes partially rugose; species 

 including the largest of the genus. Sonoran regions. . 5 



3 Elytral punctures coarse and deeply impressed but everywhere 

 separated, generally by nearly twice their diameters; posterior tibiae 

 ( 9 ) not concave on their lower face except feebly toward base. 

 Oblong, parallel, rather shining, glabrous, pale testaceous, the elytra 

 more yellowish than the anterior parts; head rather small, but little 

 more than half as wide as the prothorax, not as wide at base as 

 across the rather convex eyes, which are separated by nearly a fourth 

 more than their own width (viewed vertically), the surface smooth, 

 finely, sparsely punctured, with a moderately impressed striiform 

 and entire canaliculation; last joint of the maxillary palpi not quite 

 so long as the preceding; antennae slender, unusually short, scarcely 

 more than half as long as the elytra, slightly compressed, parallel 

 or very feebly tapering apically, the basal joint stout, the last joint 

 less than twice as long as wide and a little shorter and narrower 

 than the eleventh; prothorax and elytra nearly as in laticollis (9), 

 the former differing in having the anterior tooth obtuse and blunt, 

 scarcely evident, the latter more elongate, parallel, yery feebly 

 arcuate at the sides, just visibly wider than the prothorax, almost 

 twice as long as wide and with feeble discal ridges. Length ( 9 ) 

 26.0 mm.; width n.o mm. New York (Adirondack Mts.) J. F. 

 Kemp kempi n. sp. 



Elytral punctures apparently as in the preceding, also similar in the 

 very transverse and widely separated eyes, obtuse or rounded an- 

 terior thoracic teeth and short antennae but very much larger in 

 size; color piceous, shining; prothorax very transverse, broadly bi- 

 sinuate at base, the surface very smooth, the basal teeth obtuse, the 

 intermediate broadly prominent; elytra slightly wider than the pro- 

 thorax; antennae (9 ) slightly longer than the head and prothorax, 

 serrate toward tip; male unknown. Length 1.65 inch (41.25 mm.). 

 Georgia. [P. curticornis Lee. Journ. Acad. Phil., ser. 2. II, p. 109]. 



curticornis Lee. 



Elytral punctures unevenly coalescent, with the sculpture deeply ver- 

 miculato-rugose; hind tibiae concave throughout, more feebly and 

 less asperately punctate in the female as usual 4 



4 Prothorax in both sexes very nearly as wide as the elytra, very trans- 

 verse, almost as wide at base as at apex; elytra narrowed but little 

 apically, each with three very feeble raised discal threads, the 

 lateral obsolescent; color black, the elytra feebly brunnescent in 

 the female; head (c?) well developed, rather more than three-fifths 

 as wide as the prothorax, strongly and closely punctured, with 

 two smooth elevated spaces and impressed median line as usual, 

 the eyes separated by rather more than their own width, the tempora 



