298 PROCEEDINGS OF THE NATIONAL MUSEUM. 



sulcate, the apex roundly truncate, sometimes feebly and roundly 

 emarginate, the lower apical angle usually a little produced, giving the 

 whole, which reaches nearly to the tip of the supraanal plate, a twisted 

 appearance; infracercal plates broad, apically rounded, as long as the 

 supraanal plate; subgenital plate of subequal breadth, narrowing a 

 little apically, longer than broad, slightly flaring, the lateral and apical 

 margins in the same plane, except that the latter, which is well rounded 

 and entire, is feebly elevated at the extreme apex. 



Length of body, male, 23 mm., female, 26 mm.; antennae, male, 11 

 mm., female, 9.75 mm.; tegmina,' male, 19 mm., female, 20.5 mm.; 

 hind femora, male, 12.5 mm., female, 14 mm. 



Thirty males, 57 females. Wallula, Wallawalla County, Washi n gton y 

 September 1, Packard (U.S.N.M. Eiley collection ; S. H. Scudder) ; 

 Lone Tree, Yakima Eiver, Washington, July 18, S. Henshaw (Museum 

 Comparative Zoology) ; Salmon City, Lemhi County, Idaho (U.S.N.M. 

 Kiley collection; L. Brunei 1 ); Wyoming, Morrison (U.S.N.M. Eiley 

 collection); California (same); California, H. Edwards; Sierra County, 

 California, J. G. Leinmon (U.S.N.M. Eiley collection); Los Angeles 

 County, California, August (same); Salt Lake Valley, Utah, 4,300 feet, 

 August 1-4; American Fork Canyon, Utah County, Utah, 9,500 feet, 

 August 2-3; Fort Grant, Graham County, Arizona (U.S.N.M. Eiley 

 collection); Albuquerque, Bernalillo County, Arizona (same); Texas, 

 Belfrage (same); Pecos Eiver, Texas, July, Captain Pope; Baton 

 Eouge, Louisiana, June 8, F. J. Bird (U.S.^.M. Eiley collection). 



It has also been reported from the Yellowstone region and Sioux 

 County, Nebraska (Bruner), Reno, Washoe County, Nevada (Scudder), 

 and tbe San Joaquin Valley, California (Coquillett). 



I have found this insect only upon the sage brush (Artemisia), and so 

 completely do its gray and rusty colors harmonize with its surround- 

 ings that it is extremely difficult to detect when at rest. This has 

 also been noticed by Bruiier, who remarks that the resemblance extends 

 to the earlier stages of the insect. 



Coquillett remarks upon the ease of its flight, describing it as in a 

 straight line, for a distance of from 5 to 20 feet from the ground. He 

 found it devouring the ripe kernels of rye in California, and Eiley 

 reports it as injuring cotton in Louisiana. Coquillett regards it as a 

 migrating species, but his specific statements refer only to short flights 

 from the fields to the tree tops or the reverse, fifty to one hundred 

 yards being the usual distance. In the San Joaquin Valley he found 

 specimens pairing at the last of July. 



90. MELANOPLUS COMPLANATIPES, new species. 

 (Plate XIX, fig. 10.) 



Nearly uniform light testaceous. Head slightly prominent in the 

 male, hardly darker above than elsewhere, with no trace or but feeblest 

 trace of any postocular band; vertex very gently tumid, hardly elevated 



