NO. 1121. UEIISIOS OF THE MKLASitPH—SCUDDHi. 143 



3. MELANOPLUS SONORAE, new species. 

 (I'late X, tig.3.) 



Pale testaceous (alcoliolic specimens). Head not ]>roniinent, uniform 

 in colorini? c\ce])t for a sometimes «»l)solete median black striiu* on sum- 

 mit, and 11 broad i>ostocular i)i('eous band; vertex leebly tnmi<l, not or 

 sliulitly elevated above the pronotum, tbe interspace between the eyes 

 halt'as broad ajiain (male), 01 nearly twice as broad (female) as the lirst 

 antennal Joint; lastij^ium stee^ily declivent. sulcate thrnnjjhout, more 

 broadly in the female than in the male: frontal costa percnrrent. rather 

 ])r(miinent above but shallow below, e(|ual except for a sudden and 

 slight contraction between the antennae,' fully as broad as the inter- 

 space between the eyes, faintly sulcate at and below the ocellus, finely 

 and faintly punctate throughout; eyes of medium size and prominen«'e, 

 longer, in the male much longer, than the iufraoeular ])ortion of the 

 genae; antennae testaceous, nearly two thirdsi male) orone half(female) 

 as long as the hind femora. Pronotum compressed, unusually eipial, 

 scarcely or not expanding on the metazona, the disk very uniform, 

 broadly convex, passing by a ?ounded angle into the interiorly vertical 

 faintly tumid lateral lobes witiiout forming lateral carinae; a broad 

 l)iceousbelt, SvMuetinu's obscured, occu;»ies the ui>per half of the lateral 

 lobes of theprozona: median carina distinct, percurrent, ecpial: front 

 margin .subtruncate, hind margin very obtusangulate; prozona <lis- 

 tiiictly (male) or feebly (fen)ale) longitudinal, about a fourth longer 

 than the tiuely punctii^e metazona, which encroaches ui)on it mesiall\ 

 by the angularity of the principal sulcus. Pi-osternal spine rather 

 lung, appressed conical, a little retrorse, blunt'iy pointed; interspace 

 between mesosternal lobes sabe<iual, a little loiiger than broad (male) 

 or transverse but narrower than the lobes ^^ female). Tegmina abbre- 

 viate, ovate-lanceolate, overlai)])ing, from a littie longer than the pro- 

 ii(»tum to a third as long again, apically rather abrui>tly acuminate, 

 biownish-testaceous, sometimes with feeble signs of a slender line of 

 niaculations. Fore and middle femora of the male a little tumid: hind 

 femora slender, testaceous (apparently olivaceo testaceous), sometimes 

 biinaculate with fuscous on the inner lialf of the upper face, with black 

 genicular arc; hind tibiae pale red ( ?), apically infuscated, the sjjines 

 pallid at base an<l black beyond, ten to eleven, rarely twelve, in num- 

 ber in the outer series. Extremity of male abdomen clavate, strongly 

 recurved, the supraanal plate triangular but suddenly tapering a little 

 iiore rapidly just before the rectangulate apex, the margins not in the 

 least elevated, the surface sloping in a concave curve to the summit of 

 the very sharp and rather high submedian ridges inclosing the very 

 deep and rjuther narrow percurrent me<lian sulcus, whose margins are 



' hi one female speciimii this is almornially extended to nearly tbe whole supra- 

 oceUar region, narrowing the costa by oue-balf. 



