OP 111:, i M l ED S l \ n:s. I |3 



icially at the sides, with a hardly perceptible smooth not in d dorsnl lint . 



br idly rounded, posterior angles short, truncate, slightly divergent. Elytra not wider 

 than the th< rax, verj slightly obliquely attenuated behind the middle; stria? fine, well im- 

 press I; interstices tolerably densely, finely punctured. Legs ami antennae entirely black; 



latter as in the male of C. appressifrons, with the joints triangular, not produced at 

 the angle; the third joint a little smaller than the fourth; the eleventh elongated, deepl) 

 constricted. 



l7. C. cribrosus, ater, breviter nigro-pul arallelus, fro ititadine 



. lateribas late rotnndato, antrorsum vix an - canaliculato, grosaius, lateribua ■ !■ 



punctatn, angulis posticia acntis Bubdivergentibns, elytria atriia punctulatis, interstitiia punotat 



I. ng. •" I. 



California, San Francisco. The antennae are much more BtroneN serrate than in anv 

 i'f tiir precedii i i the joints are decided!} broader than long, and somewhat pro- 



duo nail} : tin third joint is smaller than the fourth, and the ( leventh i- constricted. 



The elytra arc very Blightly obliquely attenuated behind the middle. 



aaticoll r, nitidus, supra glaber, snbparallelns, fronti I itu- 



dine longi ire, parce groasina punctata, antrorsam vix angnstato, lateribua lato rotnndatis, Isete rufo, 

 vitta dorsali lata, angulisqne posticia divergentibna nigris: elytria Btriia punotatis profuudia, intersti- 

 tiia vix punctalatis, pedibas piceis. Lou;;. -: ' : I. 



/' n ' ollis Melsheimer, Proc. Acad. Nat. Sc. 2, 216. 



Middle ami Southern S . not common. The antennae of this species are verj 

 strongly serrate, the joints not transverse, with the outer angle produced; the third is 

 somewhat smaller than the fourth; the eleventh constricted. The prosti rnum i- • mm l\ 

 lilack, the indexed portion of the prothorax is n d, becoming black toward- the Bternum. 



29. C. trivittatns, fei J, cinereo-pnbescens, snbparallelnB, i 



latitudine Bublongi >re, antrorsam mo li. • tn, lateribua rotnndatis, angnli ami!- .1 



. maculaqne magna dorsali oigris, - tl dense ] unetato, leviter can il • lytria Ml . | | 



. sntnra vitta ■ e ante mediom interrnpta oigris, >trii.s irregnlariter, ii 



pnnctatis, tai . antennia ni._'ri-< articnlo 8 io Beqnenti mnlto minore, vix triangulari. I. 



•68. 

 Abundant in the upper portions of the Southern Si nl me bj Zimmermann, 



Pristilophus 3-vittatus Germ. MSS. This Bpeci difficult location, but from its con- 



i .'.■' front, narrow form, and Btrongly Berrate antenna?, it set ma most naturally placed in 

 the present division, forming the transition from those having the third joint ol the anten- 

 na? dilated, svo following, in which it i- almost cylindrical. The pubescence "t 

 the under surface is silvery, and the sutures of the pet blackish; the last joint of 

 tin- antenna? i- BtrongVj t ted. 



ime dm ibparalli ' 



Eronte ooncai tl titndine longiore antrorsui 



cula- 



culo '-ix dilatato. I. 



F.i '■ rbst, K Ifer, I", 7"; tab. 164, fi;:. I. 



