NORTH AMERICAN COLEOPTERA. 101 



robust, second very small, the reiiiaimler gradually increasing in size; last joint 

 terminated by a narrow process; all densely and very finely pubescent, with a few 

 larger hairs. Length 5.0 mm. 



Plate VIII, Figs. 6 and M. 



A rather abundant species under palmetto bark in the Southern States 

 (Schwarz). 



2. H. inicroplitlialiniis Sz.— Form excessively A)ngated, depressed. 

 Body punctured much the same as in the preceding species; elytra obscurely im- 

 pressed. Head nearly glabrous, prothorax glabrous, elytra clothed with ratlier 

 sparse and somewhat coarse pubescence; tarsi as in the preceding species. Head 

 sub-quadrate, constricted behind ; eyes small, very coarsely granulated ; genae dis- 

 tinct. Prothorax as broad as head across the eyes, lengtli equal to breadth, front 

 emarginate ; sides sinuate and obscurely undulated. Elytra equal in width to 

 liead. two and one-half times as long as the head and prothorax together, each 

 elytron evenly rounded behind, leaving tip of last ventral segment exposed : sides 

 parallel and straight. 



Male. — Antennae somewhat longer than head and prothorax together; same as 

 in female, except that the last three joints seem to be a trifle more abruptly en- 

 larged, and the last joint is broader, with the terminal process well developed. 

 Length 3.2 mm. 



Female. — Antennae as long as head and prothorax together; first joint robust 

 and ovulate; second small, the other gradually increasing in size; terminal pro- 

 cess of last joint not so well developed ; all densely and somewhat finely i)uljes- 

 cent. with a mixture of longer hairs. Length .3.2 mm. 

 Plate VIII, Fi- 7. 



Three specimens are before me, one each from Tampa, Enterprise, and 

 Baldwin, Fla. (Schwarz), I have also seen three other specimens in the 

 cabinet of the Agricultural Department at Washington. They do not 

 seem to present any perceptible variation, except a very slight widening 

 of the prothorax in one specimen which I have taken as the male. The 

 two punctures of the prothorax are the same as in i»ar(/iiu'pfun{.<i. 

 Found flying at night (Schwarz). 



Note. — I had already come to the above conclusion respecting the .><ex 

 of Ilf'inlpijtliis bi'lore hearing of a discussion which had been carried on 

 between two of our most distinguished coleopterists some years before on 

 this same subject. Upon learning this, however, I sought to revise my 

 decision, and renewed observation has only tended to confirm it. The 

 folk)wing are my reasons for this adherence : 



It has usually been accepted as a fact that Heniipejdus belongs to the 

 Cucujidae, and in the immediate neighborhood of Brontes ; its affinities 

 must therefore be with the general characters of the Cucujidae on the 

 one hand, and more particularly with those of Dendrophugus and 

 lirontra on the other. We have also the following well known facts : 



(26) 



