AMERICAN COLEOPTKRA. 193 



narrowly but distinctly separated. Mesosternum horizontal except 

 for the ascending intercoxal process; metasternum not declivous in 

 front; median line smoother and finely impressed posteriorly; hind 

 coxal plates suhparallel, a little dilated at their inner extremity. 

 Third and fourth ventral segments subequal and a little shorter 

 than the first and second, the fifth longest. Legs' moderately stout; 

 the front and middle tibia? concave on their outer margin ; tarsi a 

 little compressed, rather densely pubescent beneath, first joint sub- 

 equal to the three following, terminal joint nearly as long as the 

 two preceding and scarcely narrower. 



Antennal stern subpectinate in the male, the first two joints of the club strongly 



acutely produced in both sexes 1. convesa. 



Antennal stem acutely serrate, the outer joints strongly transverse. 



Eighth joint of antennae as wide as the ninth in both sexes; first two joints of 

 club elongate-triangular, the outer angle acute and a little produced ; 

 color blackish, elytra each with a small antemedian pale spot (some- 

 times lacking) ; p roth o rax rufous, more or less infuscate anteriorly. 



2. murrayi. 



Eighth joint of antennae less strongly produced, subequal in width to the ninth 



in the male, but oviously narrower than the latter in the female. 



Form less robust; brown or blackish brown, prothorax con colorous, elytra 



with or without a small antemedian pale spot; prothorax closely very 



minutely punctulate and with scattered larger subgranulate punctures. 



3. blaisdelli. 

 Form more robust; uniformly dark brown (type) or variegated with pale 

 vittae, which are more or less confluent anteriorly and are subject to 

 reduction; prothorax granulate-punctate, the interspaces densely 

 finely punctulate; elytra distinctly truncate at apex. .4. cvpaioa. 

 Form more robust, brown, with short yellowish pubescence; prothorax not 

 granulate, densely finely punctate and with scattered coarser punctures, 

 which are larger and more shallow laterally; elytra not truncate at 



apex 5. laureiitina. 



Form very robust; black, pubescence cinereous; prothorax densely rather 

 coarsely punctate, the punctures becoming subgranulate toward the 

 side margins; elytra very narrowly truncate at apex. .6'. plumbea. 



1. V. eouvexa Lee. 



This species differs from all others of our fauna in having the an 

 tennal funicle (fig. 12) subpectinate in the male. The processes of 

 joints 4-8 are slender and subcylindrical, becoming gradually 

 longer, the eighth joint three times as wide as long. The ninth and 

 tenth joints are more elongate as usual, but instead of the usual tri- 

 angular form they are produced inwardly somewhat after the man- 

 ner of the funicular joints though to a less extreme degree. The 



TRANS. AM. ENT. SOC. XXXI. (25) JUNE, 1905. 



