442 Coleopterological Notices, V. 



The single species was described by LeConte under the name 

 Faronus tolulae. It occurs in Pennsylvania and Georgia and ap- 

 pears to be rare. 



EUPLECTINI. 



The tribes or groups Euplectini and Trichonyni of Reitter and 

 Rafifray, cannot be maintained as distinct and natural aggregates 

 of genera, and should be united to form the single tribe Euplectini. 

 The auxiliary tarsal claw varies by successive degrees in different 

 genera and species otherwise closely related, so that it is impossible 

 to draw any line of demarcation between two groups founded upon 

 this character, or any other which it seems possible to discover. 



The second tarsal claw is distinctly visible as a minute hair-like 

 appendage in at least several species of European Euplectus, in 

 Trimiopsis, and also in Actium, which was recently re-described by 

 Mr. Rafifray under the name Proplectus and placed in the " Tricho- 

 nyni." I have seen the second rudimentary claw plainly in Bihlo- 

 porus bicanalis and Evplectus calif ornicus. Finally in Evplectus 

 crinitiis the auxiliary claw becomes as large, conspicuous and fully 

 formed as in Trichonyx itself, and yet in general habitus and details 

 of structure crinitus is unmistakably very closely allied to Euplectus, 

 and should not be widely separated from that genus. 



The so-called second claw is always in the nature of an appendage, 

 even in Trichonyx, Oropus and other typical trichonychide genera. 

 That is to say — the large claw is in every case perfectly in the 

 plane of the axis of the tarsus, the auxiliary claw projecting laterally 

 from its base. 



In view of the great diversity in the relative size and distinctness 

 of the second tarsal claw, in pronotal structure and in the general 

 type of male sexual characters among our species of Euplectini, a 

 revision of them from a generic standpoint seems imperative. This 

 I have attempted in the following table, it being unnecessary in 

 treating a single limited fauna to indicate groups or subtribes by 

 special designation : — 



Antennae inserted at the inferior apical angles of an extremely narrow advanced 

 and porrect frontal process, the tubercle formed by a complete amalgama- 

 tion of the antennal prominences without trace of dividing sulcus ; basal 

 joint of the antennae elongate-oval ; ungual appendage not distinct. 



Rhinoscepsis 



