43 



sugar maple and bark of black oak." This species is not a primer, at 

 least as far as observation goes. There is a divisional note on its hav- 

 ing bred February 8, 1889, from a piece of dogwood (Cornus) which had 

 been stored in a carpenter shop some years to be used for hammer 

 handles. The larvae had worked principally under the bark where 

 they produced large and irregular channels, entering, when nearly full 

 grown, the solid wood, in which they transformed. 



The adult insect, represented at figure 14, is similiar in -form, size, 

 color, and pubescence to villosum. The antennae and elytra differ in 

 being armed with much longer spines; the femora are also spinose. 

 The autennae of the male are longer 

 than the body. This is our commonest 

 northern Elaphidion, next to villosum. 



HABITS OF OTHER SPECIES OF 

 ELAPHIDION. 



E. tectum Lee. ( t ) — The stems of 

 Yucca are sometimes attacked by what 

 Mr. A. Bolter supposed was perhaps 

 this species. (Trans. Acad. Sciences 

 St. Louis, Vol. Ill, p. 568). 



E. cinereum Ol , is an inhabitant of 

 the West Indies, but is also very abund- 

 ant at Key West, Fla. Mr. Schwarz has 

 discovered that this species develops in 

 the branches of the buttonwood, Cono- 

 carpus erecta. (Pr. Ent. Soc. Wash., 

 Vol. I, p. 93.) 



E. irroratum Fab. inhabits the trunk 

 of the black mangrove (Avezinnia nitida) in Florida (Hubbard, Am. 

 Ent-, Vol. Ill, p. 239), and the white mangrove (Laguncularia racemosa), 

 (Schwarz, Proc Ent. Soc. Wash., Vol. I, p. 93)*. 



E. unicolor Band. — Dr. Leconte has recorded this species as occur- 

 ring in the Judas tree or redbud (Cercis) (Trans. Amer. Ent. Soc, Vol. 

 IX, p. iii). 



A twig of plum was found by the writer at Colonial Beach, Va., July 

 13, 1897, that showed castings of a larva on the amputated end remain- 

 ing upon the tree. When this was cut open, a living beetle was found 

 within. 



E, imbelle Lee. has been reared from oak in California (J. J. Bivers, 

 Bui. Calif. Acad. Sci., Vol. II, p. 70, etc.). 



Fig. 14.— Elaphidion mucronatum: 

 larged 2\ times (original). 



