696 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



22. The whitescuteled pine-borer. 

 Monohammus scutellatus Say. 



A larj^e white grub, closely like the foregoing, and boring in the wood in a similar 

 manuer, in the month of June producing a beetle of similar form but of a shining 



black color, its wing-covers having small patches 

 of short hairs here and there resembling spots of 

 white mold, their surface rough from coarse con- 

 fluent punctures aud the thorax similarly punct- 

 ured across its middle, its base and apex with 

 irregular transverse wrinkles, and its sides with 

 a conical spine, which is not clothed with hairs ; 

 the scutel coated over with white hairs, aud the 

 anteuu;© double the length of the body in the 

 males, and in the females with a gray band on 

 the base of each joint, its length varying from 

 0.60 to 0.75. (Fitch.) 



This is a common and sometimes abun- 

 dant beetle in Maine and northern New 

 England generally, and especially in the 

 lumber regions of Lake Superior, whence 

 I have received it in large numbers. It 

 also occurs in the pine forests of British 

 America and in Washington and Oregon 

 along the Pacific coast. Though I have 

 taken it on the white pine, in Maine, in 



^^^iiC''--^::::::^^^^'! J^ly» I c^° ^^^ relate more concerning its 



^.„ „„ ,, , habits and larval forms than is contained 



xio. 232. — M07iohamrmis scutellaUis.— 



Smith del. in Dr. Fitch's brief account given above. 



23. The pine-eating gay-beard. 



Eupogonius pinivora Fitch. 



Order Coleoptera ; family Cerambycid.e. 



A small grub resembling a young apple-tree borer, mining the wood of the pine, and 

 in July becoming a small cylindrical long-horned beetle, which is found upon the 

 leaves, 0.25 long and about a third as broad, clothed with numerous erect black hairs 

 on the body and antennae, and gray ones on the legs ; its color shining pale chestnut, 

 with irregular and oblique and transverse spots and streaks ofgray on the wing-covers, 

 which are coarsely punctured, the punctures dense ou the base and fine on the apex ; 

 its thorax narrower, slightly darker colored, closely punctured, having a very small 

 tooth-like point on each side aud along its middle a gray line which is widely inter- 

 rupted in the center, the sides and also the head with thin gray pubescence ; its 

 antenna' shorter than the body, coarse, and the joints becoming suddenly shorter after 

 the fourth ; its under side blackish brown, the legs pale chestnut. 



This species is of the same color with E. tomentosus of Haldeman, 

 which; however, is larger, with gray hairs instead of black, and the 

 wing-covers with ocher-yellow spots and streaks. (Firch.) 



