NO. 1124. RKVISIOX (IF THE MKLASitri.I—SCVlHtKli. 209 



39. MELANOPLUS ARIDUS. 



(Pliite XIV, flg. S.) 



Pezoteitix hiimjthreifsii Thomas! (parn), KN*p. in-ogr. Kxpl. lOOtli im^r., \' (1S7."»)» P- 



WK), pi. XLV, tigs. 1, 2. 

 I'ezoUtiix arhlHH S<ii>I)Er!, Tror. I'.oat. Sor. \at. Tlist., XX (1870), pp. Rl-8r>; 



Ceut. Orth. (IS79), pj). 7:i-7l.— FJurNKH, Rep. IJ. S. Ent. Comin., HI (IHH'A), 



p. ">{). 



Brownish Havons,iiK*liiiingt<)tiiivous below, marked with black. Head 

 slijj^iitly proiniiient es|>ecially in the male, more or less embrowm';!, with 

 a narrow mesial black stripe on summit and a broad j)ostociilar piccoiis 

 band; vertex rather tumid, distinctly elevated above the pronotum, the 

 interspace between the eyes slightly narrowt-r (male) or slightly broader 

 (female) than the first antennal .joint; fastigium steej)ly declivent, 

 sulcate, narrow, considerably e\i>anding in front, the bounding walls 

 stout, rounded; frontal costa moderate, nearly espial, contrat-ted 

 slightly Just below the ocellus, al.ove flat, below the ocellus a little 

 sulcate, rather broader than the interspace between the i-yes; eyes 

 rather prominent esjiecially in the male, as long as (female) or dis- 

 tinctly longer than (male) the infraocular i)ortion of the genae; 

 antennae Havo-testaceous, about live-sixths (male) or two thirds 

 (female) as loi^g as the hind femora. I'ronotum simple, expanding a 

 very little posteriorly, the i)rozona slightly swollen on the ui)i)er ])art 

 <»f the lateral h)bes, into which the disk passes insensibly; there is a 

 broad black band at the upper limit of the lateral lobes of the pro- 

 zona, which either narrows on the metazona so as only to edge the 

 lower side of the position of the lateral carinae, or, if of ec^ual wi<lth 

 with the preceding p(»rtion, is enlivened by a yellow stripe i)assiug 

 longitudinally through the middle, a continuation of theblack bordered 

 yellowish stripe on the metathoracic epi pleura; occasicmally the band 

 is wholly obsolete on the metazona; in the middle of the portion of 

 tlie band on the prozoua is also a roundish or oblique pyriform yellowish 

 spot; mediancarinadistinct, equal, but lowland rounded; front margin 

 truncate, hind margin gently convex, subangulate; prozona obscurely 

 and sparsely punctate, distincily (male) or very feebly (female) 

 longitadinal, a third (male) or a fourth (female) longer than the finely 

 and clearly punctate metazcna. Prosternal spine not very long, 

 conical, blunt tipped, suberect; interspace between juesosternal lobes 

 fully (male) or nearly (female) naif as long again as broad. Tegmina 

 abbreviate, shorter or at least no longer than the pronotum, 

 rounded ovate, about twice as long as broad, the costal and 

 niiier margins about ;ually convex, the extremity truncate and 

 broadly rounded, not in the leapt pro<luced, dark brownish fuscous, 

 clouded with olivaceous. Fore and middle femora very gently tumid 

 ill the male; hind femora dull olivaceo flavous, the outer face more or 

 Proc. N. M. vol. XX 14 



