280 On Some New 



The parts which appear to vary most throughout the genus 

 are the eyes and abdomen. In the former the inner margin is, 

 in a number of species, strongly elevated and prominent, but in 

 the majority they are normal and generally more or less elongate. 

 The first ventral suture varies, being in some rather abruptly 

 arcuate or acutely angulate in the middle, and in others very 

 broadly rounded in the middle or angulate throughout the 

 width; but this character does not permit of employment for 

 purposes of classification, because of the many intermediate 

 forms. The second ventral segment is generally nearly as long 

 as the next two combined, but in several, and notably flaves- 

 cens, it is much shorter. Other divergencies of structure or 

 of vestiture will be alluded to below under the respective 

 species and in the accompanying table. The claws are 

 distinctly appendiculate. 



I have been greatly aided in the identification of species by 

 four European representatives very kindly communicated by 

 M. Aug. Salle, of Paris. These are flavescens, crinitus, lineellus, 

 and tibialis j the last three are quite distinct from any native 

 species which I have seen and probably do not occur here 

 at all, except sporadically as a result of commercial intercourse. 



As a rule, our species appear to be more slender and elongate 

 than the European. The former, as far as known to the 

 writer, may be classified as follows : — 



Elytra without erect setae ; second ventral segment shorter ; first tarsal 



joint longer . . fla ve§cens 



Elytra with distinct erect setae, sometimes shorter, wider, and 

 squamose. 

 Inner margin of the eye not prominent. 

 Prothorax not constricted near the apex, coarsely, sparsely, and 

 very distinctly punctate ; punctures of elytral striae becoming 



rapidly very coarse and distinct toward base hispidulus 



Prothorax constricted near the apex, densely and indistinctly punc- 

 tate ; punctures of elytral striae generally indistinct, and when 

 evident, but very slightly and gradually coarser toward base. 

 Seventh joint of antennal funicle as long as wide, and, on the 

 edge, longer than wide ; eye very long, evenly elliptical, 



extrusu§ 

 Seventh funicular joint wider, transverse. 



Elytra more or less tesselate, maculate, or vittate. 

 Elytral striae evidently punctate. 



