EUPHETTUS. 125 



distinguished from the first by the truncate prosternum, as well as the other characters 

 just named. It ought to be placed amongst Chapuis's first section, the Iphimeinse. 



1. Euphrytus seneus. (Tab. VII. fig. 25.) 



Elongate, convex, greenish aeneous ; legs and base of the antennae testaceous ; thorax and elytra closely and 

 finely punctured ; posterior femora incrassate, subdentate. 



Length 3 lines. 



Head closely and distinctly punctured; clypeus triangular, limited anteriorly by two highly-raised smooth 

 spaces ; antennae more than half the length of the body, robust, first joint swollen, pear-shaped, second 

 very short, globose, third and fourth joints a little longer, of equal length, the rest more elongate, but 

 thickened and slightly compressed, the four basal joints testaceous, the rest black ; thorax transversely 

 convex, its sides evenly rounded, the anterior margin not produced in the middle, the posterior one slightly 

 rounded, surface everywhere and closely impressed with fine but distinct punctures ; scutellum oblong, 

 apex rounded ; elytra very elongate, parallel and rather convex, the shoulders prominent and limited 

 inwards by a shallow longitudinal depression, surface punctured like the thorax, but the punctures arranged 

 in indistinct rows, with traces of longitudinal costae near the apex ; last abdominal segment thickened and 

 produced ; legs elongate, the posterior femora much widened and produced into a broad triangular tooth, 

 its inner margin deeply concave and fringed with hairs, first tarsal joint as long as the two following 

 united ; claws appendiculate ; prosternum greatly narrowed between the thighs, its base truncate. 



Hab. Mexico, Puebla (Salle). 



The specimen which I believe to be the male shows rather less of the femoral dila- 

 tation, but the first tarsal joint of the anterior legs is more thickened (but not dilated) 

 than in the female. 



2. Euphrytus simplex. 



Greenish aeneous ; base of the antennae and the femora and tibiae fulvous ; antennae filiform, gradually thick- 

 ened; thorax and elytra finely punctured, the former transversely depressed at each side; posterior 

 femora simple. 



Length 3 lines. 



Head strongly and rather closely punctured ; clypeus limited in front by two smooth moderately-elevated 

 spaces, its anterior margin straight ; labrum broad, fulvous ; antennae nearly as long as the body, fourth 

 joint longer than the third, the following ones elongate, terminal joints compressed and greatly dilated, 

 black, the two basal joints and the apex of the following two fulvous ; thorax transversely convex, its 

 sides slightly sinuate near the base, surface very closely punctured ; elytra closely geminate- punctate- 

 striate, the interstices forming longitudinal smooth spaces ; legs fulvous, tarsi piceous ; the posterior 

 femora moderately thickened, unarmed. 



2 . Antennae shorter ; posterior femora wider, subangulate. 



Hab. Mexico, Oaxaca (Boucard, coll. Salle), Panistlahuca (SallS). 



As will be seen by the above description, this species deviates considerably from the 

 type of the genus, on account of its more filiform antennae and the unarmed and much 

 less dilated posterior thighs. The general shape of the insect, however, and that of 

 the palpi, and its other characters, seem to justify me in including it in this genus. 



3. Euphrytus opacicoUis. (Tab. VIII. fig. 18.) 



Narrowly elongate, black below; antennae and legs fulvous, above metallic green, subopaque ; thorax impunc- 



tate ; elytra finely punctate-striate ; femora normal. 

 Length 2 lines. 



