304 ENTOMOLOGICAL NEWS [Dec., '22 



A New Typocerus (Coleop., Cerambycidae). 



By A. B. CIIAMTLAIN and J. N. KNULL, Bureau of Plant 

 Industry, Harrisburg, Pennsylvania. 



Through the kindness of Prof. J. S. Hine and Prof. J. G. 

 Sanders, the authors were allowed to work over some unde- 

 termined Cerambycidae in the collection of the Ohio State 

 University. An apparently new species of Typoccrns was 

 found. After carefully going over the literature, the species 

 was found to be undescribed. Specimens were sent to Prof. 

 H. C. Fall and Chas. Liebeck for examination. 



Typocerus trimaculatus n. sp. 



Size and form of Typocerus velutinus Oliv. 



Head black, front finely punctate, covered with golden pubescence, 

 which is more dense on the vertex. Prothorax black, convex, apex 

 constricted, base impressed, finely and densely punctate, covered with 

 golden pubescence which becomes more dense at base and apex. Scu- 

 tellum triangular, densely clothed with golden pubescence. Elytra grad- 

 ually attenuate to apex, which is obliquely truncate and bispinose, sur- 

 face densely punctate and pubescent, bright yellow, with base, suture and 

 tip varying in color from brunneous to piceous, and three transverse 

 piceous bands running from suture to lateral margin. Ventral surface 

 finely and denselv punctate, clothed with golden pubescence. Legs 

 yellow. Length 15 mm. 



$. Antennae black; when laid over the dorsal surface, extending 

 four-fifths the length of the elytra, joints six to eleven provided each 

 with two large poriferous areas, the eleventh joint appendiculate and 

 containing four such areas. 



9 . Antennae black ; when laid over the dorsal surface, extending 

 beyond the middle of the elytra, joints six to eleven provided each with 

 two smaller poriferous areas, the eleventh joint appendiculate and con- 

 taining four such areas. 



Superficially this species resembles Tvpoccrus zcbratits Fab., 

 but it is easily distinguished from this species by the larger size 

 and finer punctuation of the prothorax. According to Leng's 

 Key* it runs to T. I'dntinns Oliv. The bright yellow color of 

 the elytra, together with the black cross bands, will at once 

 separate the two species. 



Type, a male collected at New Roads, Louisiana, on July 14, 

 in Authors' collection. Paratvpes as follows : Oaines-nTe. 

 Florida, collected on May 14, bv C. J. Drake, in Ohio State 

 University collection ; New Roads, La., collected on July 14, in 

 the collection of the Pennsylvania Bureau of Plant Industry ; 

 Winnfield, Louisiana, collected on May 12, by H. C. Fall, in 

 the collection of Prof. H. C. Fall, to whom we are indebted 

 for the loan of the specimen. 



*Entomologica Americana V. 6, p. 150 1890. 



