xo. 1124. REVISION OF THE MELAXOPLT SCUDDER. 61 



of minute rounded lobes, separated by about their own width; cerci 

 simple, subeouical, tapering a very little, more rapidly in the proximal 

 than in distal half, subacutely pointed, as long as the supraanal plate 

 and feebly incurved; infracercal plates not very broad, as long as the 

 supraanal plate, completely concealed by the recumbent cerci. 



Length of body, male, 15.5 mm., female, 20.5 mm. ; antennae, male, 

 female, 7 mm..; tegmina, male, 12 mm., female. 13 mm.; hind femora, 

 male, 0.1 mm., female, 11 mm. 



Sixty-six males, 58 females. Salt Lake Valley, Utah, 4,300 feet, July 

 20, August 1-4 (S. H. Scudder; U.S.X.M. [No. 70S]); American Fork 

 Canon, Utah, 9,500 feet, August 2-3 ; Provo, Utah, August 23-24 ; Spring- 

 Lake Villa, Utah County, Utah, August 1-4, E. Palmer; Los Angeles 

 County, California, Coquillett (U.S.N.M. [No. 708]. Riley collection). 



The species has previously been reported (under another name) from 

 Lake Point, Salt Lake and Salt Lake Valley (Scudder), Mount Nebo 

 and Spring Lake, Utah (Thomas), and Utah (Bruner). 



The contrasts of colorings in this species render it a more variegated 

 insect than any of the other species of the genus, particularly when the 

 buft' colors are deepest and bring out the black and white with greatest 

 vividness. 



4. HESPEROTETTIX PACIFICUS, new species. 

 (Plate V, fig. 1.) 



Hesperotettix pacificus BRUNER!, MS. KOEBELE!, Bull. Div. Ent. U. S. Dep. 

 Agric., XXII (1890), p. 94. undescribed. 



Body feebly but not briefly pilose; general color dark brownish tes- 

 taceous, frequently tinged more or less with olivaceous. Head sparsely 

 punctate, with a variable broad black bar below the eyes, sometimes 

 reduced to a V-shaped spot and in greener specimens dark olivaceous; 

 a similar broad dark stripe behind the eyes, and the summit generally 

 with a mediodorsal black stripe, sometimes having a median light thread 

 through it; fastigium generally sulcate, sometimes reduced to a pit in 

 front of the eyes; frontal costa equal, about as wide as the space 

 between the eyes, more or less feebly sulcate; antennae testaceous, 

 generally darker apically and sometimes pallid basally, about as long 

 as (female) or much longer than (male) the head and pronotum together. 

 Pronotum scarcely enlarged from in front backward, rounded tectiforin, 

 with the bluntest possible median carina, the prozona smooth or very 

 feebly and sparsely punctate, the metazona about two-thirds as long 

 as the prozona and punctate, the hind margin very obtusely angulate, 

 the angle broadly rounded; there is a slender pallid or testaceous 

 median stripe, more distinct on the prozona than on the metazona, on 

 the former and occasionally on the latter margined, generally narrowly, 

 with black; on the upper part of the lateral lobes of the prozoua is a 

 broad black band, often obscure and on greenish specimens sometimes 

 obsolete, and where most pronounced bordered broadly below and nar- 



