— 130— 



Synopses of Cerambycidae. 



By Charles W. Lexg, B. S. 

 (Conlinued from p. 35. <inle.) 



Tlie foUuwing paper on the species of the genera erected at the ex- 

 pense of Elaphidion is based upon material received by Dr. Horn since 

 the pubhcation of our synopses (No. 2 May). Those synopses were 

 submitted to Dr. Horn for the insertion of the new species, but the 

 material then in hand did not jusdfy him in making any changes and 

 the absence of Dr. Leconte's types q{ Ancfltn prevented the careful com- 

 parison which has led to these notes. We are greatly indebted to 

 Dr. Horn for the opportunity of publishing them in this series and 

 trust the reader may derive great satisfaction from this final clearing up 

 of a puzzling group. 



ROMALEUM, WhUt. 



R. simplicicolle Hald. = procerum Lee. 



The diflferences between these two species are not constant and the 

 intergradation in the arrangement of the antennal spines on the outer 

 side of the third and fourth joints is so gradual as to render it impossible 

 to draw any line of separation. R. operarium Wht. , B. M. Catal. p 309 

 pi. VI, fig. 9, is without doubt the same thing. 



R. seminitidum n. sp. 



Form robust, piceous, moderately shining, pubescence very fine and very sparse, 

 hte surface being almost nude. Head coarsely and deeply punctured, a space clothed 

 with yellowish pubescence on each side of the occiput within the eyes. Head slight- 

 ly Wider than long, base a little narrower than apex, sides irregularly arcuate, disc 

 slightly flattened, with three callosities, one med.an larger, one on each side slightly 

 in front of the middle; surf ice roughly grantdate punctate. Elytra wider than the 

 thorax, slightly narrowing to apex, the apices sinuously truncate, the sutural angle 

 dentiform, disc slightly depressed, surface coarsely punctured and sub-granulate at 

 basal strioe, the punctures very rapidly finer and sparser posteriorly. Body beneath 

 brownish, punctulation fine and sparse, pubescence very fine. Legs brown, punctate, 

 ihe tibire not carmate. Length 1.04 inch; 26 mm. 



This species closely resembles Eustroma validum and might readily 

 be mistaken for it without relerence to the generic characters. It is more 

 shining and less pubescent. The antennae are distinctly spinous on the 

 inner side from the third to tenth joints, and less distinctly on the outer 

 side from the fourth to tenth. 



One 9> Arizona. The male probably has a different thoracic 

 sculpture as is usual in this genus. 



