.N0.1124. UEnsiitS (tF THE MIlLAXiU'll—SrVIHHlU. 243 



mm., female, ^I.T") imii.: tojjmina, male ami feinalo. 4 mm.: liind femora, 

 m:il4% 10.5 mm., female. 11.2') mm. 



I'onr males, 7 females. Siskiyou County, (';iiitoniia ( I'.S.N.M. — Kiley 

 eollection); K(l<,^e\voo<l, Siskiy<m ('(Hiiity, Calitbiiiia (L. IJninei); Sis- 

 sous, Siskiyou ( 'ouuty, Packard: Mount Shasta, Caliroruia (L. IJru- 

 ueri: Sliasta Couuty. Calit'ornia, .luiie, .1. Uehrens (same): Santa Ciuz 

 Mountains, California (U.S.N.M. — Kiley eolleetioni: mountains near 

 Lake Ta'.ioe, Calit'ornia, Sej)tember, Hensliaw, Wlieeler's Expedition, 

 187<». 



This species may readily he <*ontbunded with the following: it is a 

 little smaller and somewhat slenderer than M. hotckii, and ditlers also 

 in the jioints mentioned in the table. 



6i. MELANOPLUS BORCKII. 



(I'hite XVI, tifr. 0.) 



JcridiinH (I'odinmo) horckii StAl, Oitb. Kuj;. HtH. 1 1?S«)1), p. 3.S2. 



Podisma horckii Walkkh. Cat. Derm. JSalt. Brit. Mus., IV (1S7(»), p. 718. 



Pezotettix { Mrlaiwpliix) horckii Stal, K«'C»'ii.s. Ortb.. I (1873), p. 7!i. 



J'czofeHix horckii Thomas, Itep. V. S. (ieol. Sni v. Terr.. V (1873). p. 1 lit.— Hkixf.r, 



L'c'p. r. S. Knt.Comm., Ill (IS83). p..")J»; Can. p:ut.. XVII (188.5), p. ll'; Hull. 



Div. Eiit. r. S. 1)«']». Ajjric. IV (1S84 ), p. 58. 



Of fully medium size, ferrugineo-fuscous, dull testaceous beneath. 

 Head scarcely i)romineut, tlavous, often more or less clouded with fus- 

 cous, above always more or h*ss brownish fuscous, occasionally i)unctate 

 or streaked with black, rarely with any sign of a postocular i)and; 

 vertex very gently tumid, feebly elevated above the proiiotum, the 

 interspace between the eyes fully half as broad again (n»ale) or twice as 

 broad (female) as the tirst antennal joint; fasiigium moderately decliv- 

 ent, sulcate thr<mghout but more feebly in the female than in the male; 

 Irontal costa fading before the clypeus, equal but for the slight narrow- 

 ing above, as broad as the interspace between tlie eyes, slightly sulcate 

 at aud sometimes shortly below the ocellus, i)unctate throughout like 

 the rest of the face and geuae; eyes of moderate size, feebly tumid and 

 scarcely more so in the male than in the female, onl}- a little longer than 

 the infraocular portion of the genae; antennae luteous or rufous, becom- 

 ing du.sky ai)ically, slightly more than half (male) or about three-fifths 

 (tenuile) as long as the himl femora. Pronotum distinctly enlarging 

 l)osteriorly especially in the female, of nearly uniform color but becom- 

 ing dull fusco-testaceous on the lower ])art of the lateral lobes, aud 

 sometimes, aud especially in the male, with a broad, dull piceous, post- 

 ociilar band confined to the prozona, the disk broadly convex and sep- 

 arated by a distinct and tolerably sharp angulation, forming rather 

 •listiuct lateral carinae, from the gently tumid but otherwise subvertical 

 literal lobes; median carina distinct, percurrent but feebler on the pro- 

 "na, and feeblest and sometimes subobsolete between the sulci; front 

 margin truncate or faintly convex, hind margin truncate or feebly 

 1 "unded, rarely subangulate; prozona distinctly (male) or feebly (female) 



