126 U. S. NATIONAL MUSEUM BULLETIN 216 



and femur fulvous (the femur more of a yellowish fulvous than in 

 most species of Dolichomitus) , the apex of femur narrowly fuscous; 

 hind tibia and tarsus dark reddish brown, its basal 0.15 fulvous; 

 hind tarsus fuscous. 



European and American specimens are rather different, the Amer- 

 ican specimens averaging a little more slender, with the ovipositor 

 a little longer, and with the punctures a little less dense. In color, 

 the apex of the hind femur of American specimens averages more 

 extensively and intensively infuscate. These differences, though note- 

 worthy, do not seem constant enough for a subspecific distinction. 



The type of the name tuberculatum is lost and the original description 

 is unsatisfactory, but a rather consistent tradition has developed 

 that the present species is Fourcroy's tuberculatum, so the name is 

 applied here. 



Specimens (6 c?, 459): From Alaska; British Columbia (Diamond 

 Head Trail at Garibaldi near Squamish at 3,200 ft., Robson, Sugar, 

 Trinity Valley, and Vavenby) ; Maine (Belfast, Orono, Southport and 

 The Forks); Manitoba (Riding Mountain National Park); Massa- 

 chusetts (Amherst) ; Michigan (Isle Royale, Onata Township in Alger 

 Co., and Roscommon); Montana (Glenn Lake in Glacier National 

 Park at 4,200 ft.); New Brunswick (Fredericton) ; New Hampshire 

 (Franconia) ; New York (Ithaca and Mount Whiteface at 2,000 to 

 4,000 ft.) ; Ontario (Constance Bay, Frater, Ottawa, and Sudbury) ; 

 Oregon (Breitenbush and Cannon Beach) ; Quebec (Cascapedia River, 

 Laniel, and Wright) ; Saskatchewan (Madge Lake) ; Washington 

 (Olympic Hot Spring); and Wisconsin (Adams Co.). We have also 

 9 c? and 89 from England, Germany, and Austria. 



Seasonal records show that males emerge and disappear rather 

 early in the season and that females persist into the fall. The six 

 American records for males are: May 14 at Amherst, Mass.; May 29 

 at Wright, Que.; June 11 at Aylmer, Que.; June 17 at Cannon Beach, 

 Oreg.; June 19 at Orono, Maine; and July 19 at Laniel, Que. Early 

 and late records for females are: June 11 and July 13 at Laniel, Que.; 

 June 16 at Frater, Que.; June 17 at Roscommon, Mich.; July 15 at 

 Fredericton, N. B.; September 25 at Trinity Valley, B. C. ; September 

 29 at Vavenby, B. C; October 3 at Constance Bay, Ont. and at 

 Orono, Maine; and October 13 in Adams Co., Wis. 



Biological records are: 9, reared from Hylobius pinicolus, Madge 

 Lake, Sask., October 1954, Canadian forest insect survey. 9, reared 

 from Hylobius pinicolus, Riding Mountain National Park, Man., 

 Mar. 5, 1953, Canadian forest insect survey. 9, reared from Monoch- 

 amus scutellatus, June 4, 1948, Canadian forest insect survey. 9, 

 reared from Monochamus, A. D. Hopkins. 49, flying about a pile of 

 new lumber, Ottawa, Ont., Sept. 18, 1950, D. F. Hardwick. 



