ST' 



NOTES ON ORTHOrTK!; .. m >1 ' ' T'-'h' ^ ,|,,, ij^^^l^^^ V.; . i^ v 1001. 



During a trip through j^jortions of Kh% ^'v^^w-beai growing sections 

 of the Unittid States made in Ma}^ and June and in September and 

 October, 190-1:, a number of Orthopt>era w^le collected, and these have 

 recently beeii identified by Mr. A. N'. C^ttiell, of this Bureau. Only 

 those marked by a star (*) in the list have been previously reported 

 on this crop. 



Most of the Orthoptera taken the first trip were immature and 

 could be identified at the most only to the genus. Nymphs identified 

 by Mr. Caudell as belonging to '^Melanoplus atlanis Riley or M. femur- 

 rehrum De G." were found at Longmont, Colo. ; Montrose, Colo. ; 

 Paonia, Colo., and Lehi, Utah, doing considerable damage to young 

 beets. At Echo, Oreg., several species were captured feeding on beets 

 adjoining an alfalfa field that had recently been cut. They had 

 entirely defoliated the beets along the borders and in some places 

 had advanced well into the field. At no other points were grasshop- 

 pers seen doing serious injury, though several of the beet growers 

 complain of severe injury in years past. 



The following is a list of the species identified : 



Stipator miuutiis Thorn.: Olney, Colo. (4 Oct.), 4 ^. 



Ageneofettix scuddcri Briin. : Lagrancle, Oreg. (14 Sept.), 1 ^; Spreckels, 

 Cal. (20 Sept.), 2 9. 



Circotettix occidcntaUs Brun. : Spreckels, Cal., 8 J', 3 9. 



Gompliocerus clavatus Thorn.: Long-mont, Colo. (8 June). 



Arplila pseudonitana Thoni. : Fairfield, Wash. (10 Sept.), common. 



Chortophaga viridifasciata De G. : Fort Collins, Colo. (1 Oct.); Longmont. 

 Colo. 



* Dissosteira Carolina L. : Menominee, Mich. (5-6 Sept.) ; Daggett, Mich., (5 

 Sept.) ; Waverly, Wash. (10 Sept.) ; Fairfield, Wash. (10 Sept.) ; Lagrande, 

 Oreg.; Echo, Oreg. (15 Sept.) ; Spreckels, Cal. (20 Sept.) — common at all places. 



Dissosteira spurcata Sauss. : Waverly, Wash., rare. 



Gamnula pellucida Scudd. : Fairfield, Wash., common on high ground. 



Spliragemon collare Scudd. : Menominee, Mich., rare in beet fields. 



Trlmerotropis Juliana Scudd. : Lagrande, Oreg. 



Trimerotropis n. sp. : Spreckels, Cal. ; 2 specimens. 



Trimerotropis vinculata Scudd. : Lagrande, Oreg., Echo, Oreg., Spreckels, Cal., 

 Delta, Colo. (14 June), several. 



i^cliistocerca vetiusta Scudd. : Echo, Oreg., rare. 



*Melanoplus atlanis Riley: Waverly, Wash., Fairfield, Wash., Lagrande, Oreg., 

 Echo, Oreg., Spreckels, Cal., very common at all these places." 



'■^Melanopltis hivittatus Say: Menominee, Mich., Daggett, Mich., Fairfield, 

 Wash., Waverly, Wash., Rocky Ford, Colo. (29 Sept.), Fort Collins, Colo., 

 Olney, Colo. (4 Oct.), very common. At Olney was also taken 1 specimen of 

 the brachypterous form. 



Melanoplus devastator Scudd. : Spreckels, Cal., rare in beet fields. 



^Melanoplus differentiaUs Thom. : Menominee, Mich., Daggett, Mich., Olney, 

 Colo., Rocky Ford, Colo., Manzanola, Colo. (3 Oct.), common. 



Melanoplus femoratus Burm, ; B^airfield, Wash. 



