NEW WEST INDIAN CERAMBYCID BEETLES 



By W. S. Fisher 



Associate Entomologist, Bureau of Entomology, United States Department 



of Agriculture 



The present paper is the result of a study of the beetles of the 

 family Cerambycidae from the West Indies found in the collection 

 of the United States National Museum, together with the material 

 borrowed from the American Museum of Natural History, New 

 York, and the Museum of Comparative Zoology, Cambridge, Mass. 

 Specimens from the West Indies have been received at various times 

 for identification, many of which were forms undescribed, and it 

 seems advisable to describe these so that names will be available for 

 listing the species from that region. Four genera and 63 species 

 are herein described as new. 



Subfamily Prioninae 



XIXUTHRUS DOMINGOENSIS. new species 



Xixuthrus sp. Russo, Bol. Lab. Zool. Gen. e Agr. Portici, vol. 24, p. 141, 1930. 



Male. — Very large, robust, strongly convex, brownish black, with 

 the elytra more reddish brown. 



Head longer than wide, deeply depressed behind the epistoma and 

 on vertex, with a narrow, longitudinal, median groove extending 

 from frontal depression to occiput; surface finely, confluently punc- 

 tate, rather densely clothed with short, recumbent, yellowish-white 

 pubescence; antennal tubercles narrowly separated and strongly ele- 

 vated ; mandibles robust, long, and strongly, arcuately deflexed, inner 

 margin of each mandible armed with a small tooth at base, a large, 

 broad tooth near middle, and the apex prolonged into a large, rather 

 acute tooth, surface coarsely, densely rugose; eyes large, oblong, 

 strongly convex, vaguely emarginate, and separated from each other 

 on the top by about the width of the upper lobe. Antenna extend- 

 ing to apical fourth of elytron; first joint robust, subcylindrical, 

 coarsely punctate above, scabrous beneath, extending to anterior 



No. 2922.— Proceedings U. S. National Museum. Vol. 80. Art. 22. 



97806—32 1 1 



