N..11J4. ]:/:i jsKtx or rui: Mj:/.A\ni'i.i—scf DifEH. 3;>1 



lialf as hm*x again (female) as tlio proiiotiim. Proiiotuin siil)e(|ua1, tlie 

 metazona expaiuliiiy; soincwliat, tlie ilisk of the pro/.ona soiiu'tiines (but 

 not always) very feebly tumid, the front iiiarjfin foebly < <)iiv<*.\, the hind 

 inarjiin obtusely and r«)undly an«;ulate, more obtusely in sperimens 

 from the Pacific Coast than in others, the median carina distinct and 

 sharp on the metazona, less prominent but distinct on the anterior iialf 

 of the prozona, still less distinct (occasionally subobsolete) between the 

 enlci; prozona snbquadrate in both sexes, smooth, divided in the mid- 

 dle, and barely before the middle of the posterior half, by sulci, the 

 jaincipal sulcus bent forward in the middle by the posterior emarj>ina- 

 tion of the ])rozona, the metazona plane, finely subrugnloso punctate; 

 lateral lobes nearly vertical, separated from the disk by a well rounded 

 angle nowhere forming distinct lateral cariuac, marked next the upper 

 limit on the ])rozona by broken blackish i)atches, frequently reduced 

 to a pair of short, oblique, black dashes, one in either longitudinal half 

 of the prozona, each in a clearer field, and also by the blackening of the 

 sulci in this region; they are sometimes accompanied by slender, 

 oblique, parallel, black lines lower down, the hiiuler the lower; the 

 l>leural incisures are also heavily marked in black*. Prosternal sjune 

 rather long, conical as seen from the side, bluntly cylin<lrical as seen 

 from in front, a very little retrorse. Tegmina at least reaching (female) 

 or distin<tly surpassing (male) the hind femora, absolutely free from 

 niaculation, the narrowest ai)ical i)ortion about half as broad as the 

 broadest subbasal jxution; wings pellucid or (in darkest forms) very 

 feebly infumated, feebly and narrowly opaque ah)ng the costal margin, 

 the veins and cross veins mostly brownish luscous. Fore and middle 

 femora of male heavily bullate, the hind femora stout and rather short, 

 moderately tumid, generally fulv(> testaceous, sometimes flavo-testa- 

 ceous beneath, the outer face with alternate, fulvo testaceous and 

 black, narrow, equal fish-bone markings, the black rarely interrupted 

 ill the middle,' the upper inner face witl» small basal and large median 

 and postmedian black patches, the genicular arc black on both inner 

 and outer sides; hind tibiae yellow or fulvous (occasionally in California 

 bright coral red), with a postbasal narrow black annulus (in dark 

 specimens more or less infuscated beyoiul it), the sjjines bhu-k to their 

 very base, ten to eleven, rarely twelve, in number in the outer series. 

 Extremity of male abdomen heavily clavate, the supraanal plate sub- 

 clypeate. obtusely angulate at apex, the margins feebly and broadly 

 elevated and the median jiortion correspondingly elevatnl and bearing 

 on its summit a moderately shallow, longitudinal suii-us, tolerably 

 broad and subequal on the basal half, narrowing an<l with falling walls 

 apically; furcula completely absent or indicated only by a thickening 

 «»f the last dorsal segment at their proper position; cerci very large 



' In the dark forms the black uiarkings sometimes run together and cover the 

 whole face, partially interrupted near the middle and iu the middle of the basal 

 half, with fulvous. 



