158 PROCEEDINGS OF TEE NATIONAL MUSEUM. VOL.XX. 



(male) or fully to (female) the tip of the abdomen. Supraanal plate sub- 

 quadrate, longer than broad, the lateral margins subparallel on basal 

 half, beyond tapering rapidly, the tip triangularly produced, sharply 

 angulated; plates of furcnla stout, depressed, attingent at base, beyond 

 with the inner margins separated at an angle of 45, the outer mar- 

 gins straight and parallel, the extremity obliquely docked and scarcely 

 incurved, more than half the length of the supraanal plate and nearly 

 three times as long as the basal breadth; anal cerci forming long, 

 slender, straight, compressed fingers, much expanded above at the 

 extreme base, beyond scarcely tapering, bluntly and roundly terminated, 

 directed backward, somewhat upward and a little inward, about as 

 long as the first hind tarsal joint; subgenital plate elongated scoop- 

 shaped, the extremity a little produced, entire; basal tooth of lower 

 valve of ovipositor of female blunt, triangular, large, broader than 

 long. 



The general color is a grayish brown, the eyes margined above with 

 dull pale-yellow, the face and geuae olivaceous with transverse mot- 

 tlings of dusky ferruginous; antennae dull pale castaneous; behind the 

 eye a broad piceous belt, sometimes broken, sometimes entire, crosses 

 the prozona on the upper half of the lateral lobes; disk of pronotum 

 brownish yellow, heavily punctate or mottled with fuscous. Tegmina 

 with an obscure median series of alternate dusky and pallid spots; 

 hind femora brownish yellow, more or less tinged with plumbeous, the 

 incisures dusky, with faint indications on upper surface of dusky trans- 

 verse stripes; hind tibiae bluish green, sometimes dotted with black 

 and with black spines, ten in number in the outer series. 



Length of body, male, 23 mm., female, 26 mm.; antennae, male, 10 

 mm.; tegmina, male and female, 20 mm.; hind femora, male, 13 mm., 

 female, 14 mm. 



Four males, 3 females. Lakin, Kearny County, Kansas, 3,000 feet, 

 September 1; Pueblo, Colorado, 4,700 feet, August 30-31; Chaves, 

 Bernalillo County, New Mexico, August 6 (L. Brnner); Las Cruces, 

 Donna Ana County, New Mexico, July 8, T. D. A. Cockerell. 



It is also reported by Townsend from Sabmal, Socorro County, and 

 Belen, Valencia County, New Mexico, August 7. 



14. MELANOPLUS FLAVIDUS. 

 (Plate XI, fig. 4.) 



Melanoplus flavidus SCUDDER!, Proc. Best. Soc. Nat. Hist., XX (1879), p. 74; 



Cent. Orth. (1879), p. 63. BRUNER. Rep. U. S. Ent. Comm., Ill (1883), p. 61; 



Bull. Washb. Coll., I (1885), p. 38; ibid., I (1886), p. 200; Publ. Nebr. Acad. 



Sci., Ill (1893), p. 27. 

 Melanoplus cenchri MCNEILL!, Psyche, VI (1891), pp. 74-75. 



Moderately large in size. Head rather large, slightly elevated and 

 well arched above; interspace between the eyes nearly (male) or quite 

 (female) half as broad again as the first antennal joint; fastighmi shal- 



