NO. 1124. HKi'ISIOX OF THE MKLAXOPLf SCTDDEIi. 351 



half as long again (female) as the pronotum. Pronotum subequal, the 

 in eta/on a expanding somewhat, the disk of the prozona sometimes (but 

 not always) very feebly tumid, the front margin feebly convex, thehiiid 

 margin obtusely and roundly angulate, more obtusely in specimens 

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

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

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

 sulci; prozona subquadrate in both sexes, smooth, divided in the mid- 

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

 principal sulcus bent forward in the middle by the posterior emargina- 

 tion of the prozona, the metazona plane, finely subruguloso punctate; 

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

 angle nowhere forming distinct lateral carinae, marked next the upper 

 limit on the prozona by broken blackish patches, 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 hinder the lower; the 

 pleural incisures are also heavily marked in black. Prosternal spine 

 rather long, conical as seen from the side, bluntly cylindrical as seen 

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

 or distinctly surpassing (male) the hind femora, absolutely free from 

 maculation, the narrowest apical portion about half as broad as the 

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

 feebly infurnated, feebly and narrowly opaque along the costal margin, 

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

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

 moderately tumid, generally fulvo testaceous, sometimes flavo-testa- 

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

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

 in the middle, 1 the upper inner face with 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 beyond it), the spines black 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 portion correspondingly elevated and bearing 

 on its summit a moderately shallow, longitudinal sulcus, tolerably 

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

 apically; furcula completely absent or indicated only by a thickening 

 of the last dorsal segment at their proper position; cerci very large 



1 In the dark forms the black markings sometimes run together and cover the 

 A\ hole face, partially interrupted near the middle and in the middle of the basal 

 half, with fulvous. 



