50 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Length of body, ^, 14.5 mm., 9, 24.5 mm.; antennae, ^, 6.25 mm., 

 9 , 8.75 mm. ; tegraina, ,$, 12 mm., 9 , 19 mm. ; hind femora, J, 10 mm., 

 9 , 15.5 mm. 



19 S, 119. Palm Springs, Cal., July 13, A. P. Morse. It occm-red 

 on grasses iu dry places in Palm Canon and West Canon. 



6. The American Species of Stenobothrus. 



I have numerous specimens of Stenobothrus from west of the Missis- 

 sippi and east of the Sierra Nevadas, including Dallas Co., Iowa (Allen), 

 Nebraska (Dodge), Colorado, 5500' and 8000' (Morrison). Ft. Collins, 

 Col. (Baker), Morris Ranch, Larimer Co., Col., 8500' (Baker), Garland 

 Col., Aug. 28-29 (Scudder), Salt Lake Valley, Utah, Aug. 1-4 (Scudder), 

 Spring Lake Villa, Utah Co., Utah (Palmer), and Yellowstone Park, 

 Sept. 6-12 (Scudder). These agree perfectly with eastern examples, and 

 do not have in any case all of the characters on which McNeill separates 

 S. colo?-adensis, on the basis of a single female specimen from Ft. Collins, 

 Col. All the points on which he separates this species vary to a certain 

 extent, except perhaps the length of the antenna? (in which he may have 

 been mistaken if the antennse were curled), and I am therefore inclined 

 to think that S. coluradensis must be placed as a synonym of S. ciirti- 

 pennis. My Yellowstone Park specimens, all males, are of a smaller 

 size than is usual ; while specimens collected by R. Thaxter iu sphagnum 

 bogs at Salmonier, Newfoundland, Aug. 1-15, are unusually green and 

 have a very peculiar aspect, but I have not discovered any good specific 

 distinction from S. curtijjenms. 



On the other hand, Mr. A. P. Morse brought home from Oregon 

 (Corvallis, Cordley, Portland, Sept. 18, Divide- Cottage Grove, Sept. 12, 

 Drain, Sept. 11, Roseburg, Sept. 10, Glendale, Sept. 9, Grant's Pass, 

 Sept. 8, and Ashland, Sept. 7), and California (Gazelle, Sept. 5, Sisson, 

 Aug. 29, Baden, Aug. 24, Berkeley, Aug. 21, and San Francisco, Aug. 19), 

 numerous specimens of a closely allied but more heavily marked species, 

 which seems to be distinct and may bear the name Stenobothrus oregonensis. 

 As compared with S. curtipennis the antennae of the male are shorter 

 than, instead of as long as, the hind femora, the middle joints narrower 

 than the narrowest part of the frontal costa, instead of being at least as 

 broad as it; the fastigium of the vertex has a distinct median carina in 

 the anterior portion wanting or hardly discernible in S. curtipennis ; the 

 disk of the metazona is marked distinctly and generally broadly at the 

 sides with black, instead of being generally immaculate or narrowly mar- 



