206 VlliJCEKDlSaS nr THE SAHOSJl JdCSKrM. vocxx. 



the frontal co.*ta; the Riil);:«'nital ]»late is Hniall and subcouicul or sub 

 pyraiiiidaK thr inar^iiis lyiii;^: in one phme an<l entire. 



Three si^ecies are knowu. two in Arizona, and one from near tlie 

 inarpriii of tlie tropies in west«*rn Mexieo and Lower ralifornia. They 

 are rather above the niediiun and may be of large size. 



37. MELANOPLUS HUMPHREYSII. 



Vexotettix humphrejf^ii Thomas! (pnrss Hep. (ieojrr. Kvi»l. M^Hh iiipr., V (1^7.") . j*. 

 WMi.— Stii)|.i;u! (parm, Prof. "-^st. J?oc. Nat. liist., XX, l?7y, p.»5; (puts), 

 Cent. Orth. (ISTO), p. 74. 



The only siu'cinien seen lias been in alcolud and the colors are men' 

 or less bleached; it is brownish testaceous, marked with black. Head 

 large, somewhat protuberant, without markings except a slender l)la<k 

 line behind the eye; vertex somewhat tumid and a little elevated above 

 the jironotuni, sharply punctate except in a posteriorly broadening 

 mesial band which was probably darker colored, the interspace between 

 the«eyes much broatler (a little distorted in the specimen j than the tirsi 

 anteunal joint; fastigium rather steeply declivent, rather narrow, sul 

 cate, biseriarely punctate; frontal (;o.sta rather prominent above, fading 

 before theclypeus, much l)roa<lerthan the interspace between the eyes. 

 e<|ual, shallowly sulcate excepting above, sparsely punctate; eyes of 

 m<»derate size, not prominent, about as h>ng as the intraocular portion 

 of the genae; antennae testaceous, apically iufuscated, less than two 

 thirds (female) as h)ng as the hind femora. Pronotum very regularly 

 and feebly enlarging posteriorly, the up)>er half of the lateral lobes of 

 the prozona with a very large, posteriorly narrowing, piceous patch, 

 nearly split in two subeciual i)ortions by a wedge of the basal color 

 extending obliquely upward from the lower anterior corner, and nar 

 rowly edged above on the disk bj- a jiallid tint; disk transversely con 

 vex, passing by a very rounded and scarcely i)erceptible angle into the 

 verysteeply declivent and interiorly vertical lateral lobes, with no lateral 

 carinae; median carina i)ercurrent. feeble on the metazona, coarse and 

 rather prominent on the prozona; front margin truncate but feebly and 

 narrowly tlaring; hind margin roundly, broadly and feebly emarginate: 

 disk of prozona very coarsely punctate, (|uadrate, fully a third as long 

 again as the strongly transverse, finely punctate metazona. Prosternal 

 spine short, conical, blunt; interspace between mesosternal lobe> 

 (female) distinctly transverse, narrower than the lobes. Tegmiua 

 abbreviate, shorter than the pronotum, lateral, widely separated, 

 enlarging from the base to the middle, beyoLd eijual, apically rounded, 

 several times longer than broad, black on ground with testaceous veins. 

 Ilind femora brownish testaceous on upper half, its lower limit iufus- 

 cated on the outer face, 1 illid on lower half, the genicular arc black; 

 hind tibiae pale testaceous, the spines black tipped, nine to ten in num- 

 ber in the outer series. Supraanal plate of male ''bicarinate longitudi- 

 nally''; cerci '-flat and enlarged at the base and apex, the apical 



