HARPALIN/E 1 15 



Group VII (fraternus). 



The general habitus of the body is even more varied in this 

 group than in the preceding, but all the species have on the ab- 

 domen, outside of the two regular longitudinal series of setse, a 

 number of additional setae arising from more or less asperate 

 punctures, scattered very irregularly and sparsely over the surface 

 as a rule, generally shorter and less erect than the regular setae 

 of the series and termed accessory setae by LeConte. Sometimes 

 these setae are reduced to a very small number, perhaps not more 

 than two or three in an isolated cluster that may readily be over- 

 looked, as in the case of lewisi, which was placed in company with 

 laticeps of the preceding group by LeConte but which really belongs 

 here. The mentum tooth varies greatly but is much less often 

 obsolete than in the viduus group. There are no megacephalous 

 forms, such as laticeps, but in renoicus and sejunctus the head be- 

 comes as small as in n'tidulus and allies of the preceding group, 

 accompanied by an almost similar general habitus of the body. 

 The desertus section seems however to be peculiar to this fraternus 

 group in habitus, and the posteriorly oblique sides of the thoracic 

 base and pale integuments impart a distinctive appearance. The 

 species are not so numerous as in the viduus group, those known to 

 me being definable as follows : 



Body larger in size, always over 10 mm. in length and of very broad, 

 frequently subdepressed form; mentum tooth generally of feeble 

 development and more or less broadly rounded 2 



Body smaller, about 10 mm. in length, narrower and more parallel; 

 mentum tooth completely wanting, the bottom of the emargination 

 transverse and even ' 6 



Body still smaller, generally much under 10 mm. in length, of narrow, 

 suboval or oblong-oval form, the mentum tooth rather well developed 

 as a rule and often very acute, wanting in oppositiis 7 



2 Elytra (9) with the sutural angles not spinulose. Rather stout, 

 parallel, black, shining, the antennae and palpi obscure piceous, the 

 latter subacute at apex, the legs black; head smooth, moderately 

 large, the frontal impressions punctiform, the suture noticeably 

 deep; prothorax broader than the head, almost twice as wide as 

 long, quadrate, the sides moderately rounded anteriorly, the hind 

 angles accurately right, explanate; surface subconvex, the anterior 

 transverse impression arcuate and indistinct, the stria extremely 

 fine, abbreviated anteriorly, the basal fovese small, short and sparsely 

 punctate; elytra rather obtuse, the apices feebly sinuate, more than 

 twice as long as the prothorax, striate, the scutellar stria long; 



