502 Cole<ypterological Notices. 



from extricatus, and that the fine punctures of the type are normal ; 

 these representatives show, however, that they are generally disposed 

 in series which are alternately narrowly and slightly more widely 

 spaced, the intervals being alternately flat and slightly convex, the 

 sculpture in general greatly resembling that of fusiforrnis; the 

 original type is not a perfectly characteristic example. 



A few additional remarks concerning the species described in this 

 and the preceding paper, based in great measure upon the material 

 above mentioned, should be added as follows: — 



The aggregation of fine punctures in widely distant longitudinal 

 series, is a character common to all of our species of Eclrotes except 

 nitidus, in which I can find no trace of it ; the aggregation of the 

 punctures is generally evidenced by a certain indefinitely vittate 

 appearance, amounting to well defined series in ventricosus. This, 

 together with the fact that in the unique type of globosus I find 

 the seta' are broken off in a remarkably even manner and that the 

 pubescence in the normal state is really long and erect, necessitates 

 a new arrangement of the species as follows : — 



Elytral punctures extremely fine and sparse. 



Each elytron with three narrow lines in which the punctures are more 

 densely aggregated ventricosus 



Elytra without trace of series ; form more depressed nitidllS 



Elytral punctures coarse and deep, denser ; each elytron with three broad ill- 

 defined series, in which the interspaces between the larger punctures 

 become distinctly, though finely, and rather sparsely punctate. 



Elytra oval, slightly longer than wide; width of the prothorax scarcely 

 more than one-half the elytral length ; joints of the antennse slightly 

 more elongate rotlllldllS 



Elytra very globose, fully as wide as long, the width of the prothorax dis- 

 tinctly more than one-half the elytral length; elytral punctures rather 

 less coarse and quite constantly sparser gl©t>OSUS 



Trioropihus lecontei differs from nodiceps in its more elongate 

 form, less developed frontal umbo, much less transverse prothorax — 

 the form of this part being nearly as in Isevis — and in its coarser 

 elytral punctures. It is however more closely related to nodiceps 

 than to Isevis. 



Emmenastus acidus seems to vary greatly in the distinctness of 

 the rows of punctures, some specimens before me having the series 

 near the suture quite well developed. Under these circumstances 

 it is proper to assign the Truckee specimen, referred to under E. ater, 

 to E. acidus. E. coarcticollis has the head smaller, the prothorax 



