1906.] NATURAL SCIENCES OF PHILADELPHIA. 399 



margin of each segment, vinaceoiis. Venter bone white. Cephalic 

 and median hmbs bone white washed with greenish. Caudal femora 

 oil green dorsad, whitish ventrad, the ventro-lateral sulcus with 

 quadrate touches of vinaceous-ruf ous, while the internal face is suffused 

 with the same color, a median line of French green is present on the 

 lateral face and one of brick red on the internal face, genicular region 

 bluish green dorsad, with a proximal transverse blackish bar ventrad, 

 the arches chestnut; caudal tibise lavender laterad, vinaceous internally, 

 the genicular region bluish, the spines bone white tipped with black. 



This species was by no means abundant, but in the prairie region 

 specimens would every now and then be found. The insects were so 

 awkward that they seemed to have almost no control over their move- 

 ments. Their coloration, however, undoubtedly proves a great pro- 

 tection to them. 



LOCUSTIN-E. 



PAROPOMALA Scudder. 

 Paropomala wyomingensis (Thomas;. 



1871. Mesops wyomingensis Thomas, Proc. Acad. Nat. Sci. Phila., 1871, 

 p. 152. [.\long the east base of the Black Hills, in the ^^cimty of Cotton- 

 wood Creek, Fall River Co., South Dakota, or Converse Co., Wyoming.] 

 1890. Mesops cyUndncus Bruner, Proc. U. S. Nat. Mus., XII, p. 48. [Valen- 

 tine, Nebraska, along the north side of Keya Paha creek, also on the bluffs 

 south of Chadron, Nebraska.] 



Roggen, Weld Co., Colorado, Aug. 24, 6 cJ', 1 $ . 



As far as can be determined from the material" in hand, including 

 specimens determined by Bruner as both wyomingensis and cylindricus, 

 and the literature bearing on the subject, no reason is apparent for 

 separating the two above-mentioned forms. Bruner's cylindricus was 

 based on the brown phase, while in addition to the coloration larger 

 size was given as a differential character. This latter would appear to 

 be purely an individual matter, as green specimens have been examined 

 nearly as large as Bruner's measurements of that sex in cylindricus. 

 All the Roggen males are in the brown phase, and the single female in 

 the green. 



Material has also been examined from Valentine and Haigler, 

 Nebraska, and Denver and Greeley, Colorado. 



These specimens were beaten from some very tall weeds near the 

 railroad track, while the train was making a brief stop. 



SCHISTOCERCA Stll. 

 ScMstocerca lineata Scudder. 



Brush, Morgan Co., Colorado, Aug. 24, 1904, I <^ . 



