780 PROCEEDINGS OF THE NATIONAL MUSEUM. 



I feel quite sure of the correctness of the above synonomy, and iun 

 inclined to ludiovc that .L./r/r/^V^/ is but a rod-winged form of the 

 •samo si)(M-i(>s. Tlio type of fi^pordln has yellow wing-s. 



35. ARPHIA LUTEOLA Scudder. 

 Arjihia l.utmlK Sc'I'ddkij, I'roc. Bust. Soc. Nut. Hist., XVII, 1S75, p. 515. 

 Quite common in cotton fields about Victoria, Texas. 



36. ARPHIA PSEUDONIETANA Thomas. 



Toiiwnotns jiseitdonietana Thomas, Proc. Acad. Nat. Sci. Philad., 1870, ]>. 82. 

 Ocdljxjda tcnebrusa Scuddeh, Re.pt. U. S. Geol. Surv. Nebr., 1871, p. 251. 

 ToiiionotuK tcnehromTHOMAf^, Rept. U. S. Geol. Surv. Terr., V, 1873, p. 107. 

 Arphia sdngninarla^TXL, Rec. Orth., I, 1873, p. 119. 

 Arphia oraticepa Sav^sure, Add. Prodr. Oedip., 1888, pp. 1()5-166. 



• i 

 Sixteen males, nine females, Denver July 1(5; Golden June 19 tot' 



August 21; Fort Collins August 10. 



From a study of this series of specimens and as many more in the 

 collection of the U. S. National Museum I have decided upon the 

 above sjnionomy. believing the changes warranted. That (>rat/'('ep6i\. 

 is but a variety of fe/u^'hrosa is obvious to anyone who has seen this 

 species in numbers, and that the name j?seudoiiiet(ma of Thomas was 

 applied first to the species under consideration and should take })rece- 

 dence over teiK'hi'oxa^ described a j^ear later, also seems clear upon 

 investigation of the original descriptions. 



When in motion this is one of our most show}' locusts, the bright 

 red wings showing ver}' conspicuousU^ as the insect flies before the 

 collector. 



37. ARPHIA FRIGIDA Scudder. 



Ar]>hi((.fri(/i(ln Scudder, Daws., Rep. geol. 49th pai'., 1875, p. 344. 



Forty-one males, five females, Golden May 29 to June 17; Sedalia 

 June 1.'); Denver May 10 to June IT; Platte Canyon May 10 to 17 

 P>oulder May 22; Morrison June 29. 



38. CHORTOPHAGA VIRIDIFASCIATA DeGeer. 



Acriidriuti rh-idifascidtuni DEliEEK, ^leiii., Ill, 1773, p. 498, pi. \i,ii, tig. 6. 



Both green and brown foi-ms of both sexes occurred quite com 

 monly around Victoria, Texas, in June and July. From speciinen:^ 

 observed at this place it would a|)pear that l)rown individuals occuJ 

 more often in the male than in the female sex. In Colorado t\velv( 

 males and eighteen females were taken at Denver, Platte Canyon, anc 

 Golden. All these specimens were taken ))etween May 1<> and Jun( 

 Kiand were all of the brown form, exce]:)t four femahvs, and they wen 

 l)artially brown. Souk' variation exists in the amount of apical swell 

 ing of the male anteniue. 



