CERAMBYCID^E 225 



short dentiform serrulation; elytra nearly two-thirds longer than wide, 

 widest just before the middle, where they are fully a third wider than the 

 prothorax, the sides converging behind the middle to the obtuse apices; 

 surface smooth and almost punctureless, the sutural spines small. 

 Female narrower than the male, with relatively still smaller head and 

 prothorax, the usual small mandibles and longer elytra, the antennae 

 extending to the middle of the latter, which are twice as long as wide. 

 Length (exclusive of the mandibles) (cf) 34.0-47.0, (9) 41.0 mm.; 

 width (cf) 13.6-19.3, (9) 15.7 mm.; length of mandibles (cf) 4-8 mm. 

 Cuba (Guantanamo and Havana), Baker. 



Differs in the male from chevrolati in the relatively much smaller 

 head and prothorax, the latter in chevrolati being very nearly as 

 wide as the elytra, and the mandibles are shorter, being barely as 

 long as the prothorax in an apparently well developed male and 

 more abruptly arcuate inwardly at apex; also in the more slender 

 antennae, the last joint in chevrolati being scarcely more than half 

 as long as the width of the interocular surface. In the female the 

 two species differ even more strikingly in ways similar to those 

 relating to the males. 



Stenodontes parallelus n. sp. Male more parallel than in either 

 chevrolati or cubensis, shining, the head blackish; prothorax blackish- 

 castaneous, the elytra still paler and brownish-rufous; head sculptured 

 nearly as in cubensis but with the coarse punctures across the vertex 

 more confluent in a few depressed spots, those of the epistoma very fine 

 and much more remote; antennae dark red-brown, the basal joint more 

 obscure, extending beyond the middle of the elytra, more tapering than 

 in either of the preceding, becoming very slender apically; prothorax 

 nearly as in cubensis but relatively larger and more transverse, a little 

 more than twice as wide as long, the short dentition of the margins still 

 feebler, very irregular and more like crenulation, the two spines limiting 

 the posterior sinus distinct; elytra but very little wider than the pro- 

 thorax, nearly two-thirds longer than wide, less narrowing behind the 

 middle than in the two preceding, similarly sculptureless. Female 

 wanting. Length (cf ) 45.0 mm.; width 17.2 mm.; length of mandibles 

 (cf) 7.0 mm. A single unlabeled example, probably from southern 

 Florida. 



Differs from chevrolati and cubensis in its more parallel form, more 

 tapering antennae and still more moderate mandibles, with the 

 internal subbasal tooth not abruptly acute to subspiculiform as in 

 those species, but broadly triangular; the small area of punctures 

 behind each prominence of the pronotum is more densely and 

 coarsely rugose; the head is in size and proportion much nearer 

 chevrolati than cubensis. The Haitian exsertus Oliv. (mandibularis 



T. L. Casey, Mem. Col. Ill, March, 1912. 



