wo. 1124. REVISION OF THE MELANOPLI-SCUDDER. 335 



(U.S.KM. Kiley collection; S. H. Scudder) ; Henry Lake, Idaho, 

 August, Bruuer (same). Since this was written, Mr. 0. F. Baker has 

 sent me specimens from Fort Collins, Colorado, and from Morris Kanch, 

 Larimer County, Colorado, 8,500 feet. 



112. MELANOPLUS INFANTILIS. 

 (Plate XXII, fig. 8.) 



Melanoplm infantilis SCUDDER!, Proc. Boat. Soc. Nat. Hist., XX (1879), pp. 65-67; 

 Cent. Orth. (1879), pp. 54-56. BRUNER, Rep. U. S. Ent. Comra., Ill (1883), 

 p. 60; Can. Ent., XVII (1885), p. 17. CAULFIELD, Rep. Ent. Soc. Ont., XVIII 

 (1886), p. 71. BRUNER, Rep. U. S. Ent., 1885 (1886), pp. 303, 307; Publ. 

 Nebr. Acad. Sc., Ill (1893), p. 28. 



One of the smallest if not the very smallest macropterous species of 

 Melanoplus known. The general color is a dark griseous, the vertex 

 of the head marked in black and dull yellow in a somewhat radiate 

 fashion, the whole face and sides of head brownish olive or sordid 

 yellow, flecked more or less abundantly with black; the antennae are 

 pale dirty yellow, becoming infuscated toward the tip; behind the eye 

 is a broad black baud, often edged with yellow above, which also 

 traverses the upper half or less of the lateral lobes, confined to the 

 prozoiia, and is often enlivened by a small pale quadrate patch in the 

 center of the lobes; the rest of the latter varies from yellow to brown, 

 palest next the margins; the upper surface of the pronotuin varies a 

 good deal, but is usually griseous, often with a median belt of dirty 

 yellow or ferruginous, edged on the front of the metazona by a pair of 

 oblique, crescentic, longitudinal or converging patches of black. Teg- 

 miua cinereous, with alternate minute blocks of yellow and blackish 

 fuscous in the discoidal area, apically changing to scattered quadrate 

 fuscous dots. Hind femora below straw -yellow, above dark brown, 

 with a pair of conspicuous, very oblique pale bars at the middle and 

 next the base; hind tibiae pale glaucous, occasionally with a faint 

 rufous tinge, becoming paler next the base and straw-yellow at the tip, 

 the spines more or less heavily black-tipped, ten to eleven, rarely 

 twelve, in number in the outer series; hind tarsi yellowish. 



Head rather large, but not elevated, and moderately arched; inter- 

 space between the eyes scarcely broader than the first antenna! joint 

 (male) or broader than the length of the same (female); fastigium 

 steeply dechvent, deeply and roundly (male) or shallowly and flatly 

 (female) sulcate, the lateral margins blunt and either slightly (female) 

 or distinctly (male) divergent and then anteriorly convergent; frontal 

 co3ta broad, nearly equal, slightly broader below than above, tumid 

 (female) or flat (male) above, with a row of puncta on either side, 

 narrowly and rather slightly sulcate at and just below the ocellus; 

 eyes rather large, moderately prominent, a little longer than (male) 

 or about as long as (female) the intraocular portion of the genae; 



