182 rilOCEEDIXGS OF THE SATIOXAL MUSEUM. voi.xx. 



Arizona, PalnnT; Fort AVhipple, Yavapai Comity, Arizona, Palmer; 

 Arizona, Burrison ( Museum Comparative Zoology); Flagstaft*, Coco- 

 nino County, Arizona. Cordley (L. Bruner); Las Cruces, Donna Ana 

 County, New Mexico, Coc^kerell; Colorado (CS.X.M. — lliley collec- 

 tion: C. P. (lillette; 8. Uenshaw); Fruita, Mesa County, Colorado 

 (U.S.X.M. — Riley collection); Beaver Brook, Colorado, (),(MM» feet; Salt 

 Lake, Utali, Packard; Salt Lake Valley, Ctah, 4,o0(> feet; American 

 Fork Canyon, Utab, 0,o(K) feet; Prov**, Ctali County, Ctab; Spring 

 Lake Villa, Utah County, Utab, Palmer; Douj^las. Converse County, 

 AVyomiug (U.S.N.M. — Kiley collection); Evanston, I'inta County, 

 Wyomiufj, G,8(K) feet; Fort Mclvinney, Jobnson County, Wyominj*' 

 (U.S.y.M. — Kiley collection); Yellowstone National Park; Beaver 

 Canyon Poad, Idalio; Yellowstone, ^Montana (U.S.X.M. — Piley collec- 

 tion); Putnam, Custer County, Montana, A. Sloggy (same); Eldorado 

 County, California, 4,000 feet, Gissler; Umatilla, Oregon, llensliaw 

 (Museum Comparative Zoology): Tbe J)alles, Wasco County, Oregon, 

 llensliaw (same); Wasliington. Morrison (S. llensliaw); Camp Uma- 

 tilla, Wasbingtou, I leusbawi Museum Comparative Zoology); l*reston's, 

 Klikitat — Lone Tree, Yakima Kiver — oi>i>o>ite Ellensburg, Yakima 

 liiver — Olrastead's, near Ellensburg — Nelson's, Yakima Piver — Yakima 

 City — and Brown's, Colviile Valley, Wasbington, Jblensbaw (same); 

 Britisb Columbia, Crotcli (Museum C(»mparative Zoology) ; explorations 

 in Arctic America and Yukon Kiver, Alaska, R. Kennicott; Laggan, 

 Alberta, Bean (S. Hensbaw; S. H. Scudder) ; Banff and Calgary, Alberta, 

 Bean f S. Hensbaw) ; Fort McLeod, Alberta (U.S.N.M. — Riley collection ; 

 L. Bruner). 



Tbe publisbed accounts add very little to tbe above range of distri- 

 bution, except tbat it is rejiorted from (^>uebec (Provancberj, nortbern 

 Californiit (Packard), Nevada (Scudder), and soutb as far as middle 

 Florida — probably by error (Packard). 



It is i)robable, tberefore, tbat it is found in every part of tbe continu- 

 ous district of tbe United States, excepting in tbe soutbernmost Atlantic 

 States and most of California, being tbus limited very mucb as M.ftinin- 

 ruhrnm ; it extends also into central Mexico, and nortb of our boundary 

 is fountl from Atlantic to Pacific as far at least as latitude o(P (except- 

 ing Newfoundland), and on tbe Pacific sidereacbes nortb to tbe Yukon 

 River and probably tbe Lower McKenzie. 



Next to .1/. spretus tbis is our most destructive locust, and east of 

 tbe ^lississippi jirobably tbe only one ever doing mucb damage. Its 

 injuries, bowever, are not for a moment to be compared witb tliose 

 inriicted by M. sprettiSy for, tbougb possessing good powers of tliglit 

 and on rare occasions known to migrate in swarms, its injuries can only 

 be classed as local, and tbey are never so serious as tbose inflicted by 

 M. S2)yettis : nevertbeless tbey are by no means sligbt, and immense 

 destruction of grain is to be laid at Us door. Bruner, wbo lias studied 

 tbis insect over ^ vide extent of countrv, snvs that "wliile it occurs 

 over . . . an exi ';«(• 'd territory, it appears to be . . . partial to liill.v 



