EHABDOPHOEUS. 151 



near the sides, interstices distinctly eostate at the posterior half, less so anteriorly ; legs and underside 

 obscure fulvous, with a more or less distinct aeneous gloss ; prosternum broad, much widened at its base. 



Hab. Mexico, Cosamalcapara, Puebla, Playa Vicente {Salle, Edge) ; Guatemala, San 

 Geronimo, Senahu, Panzos, Sinanja, Mirandilla (Champion); Nicaragua, Chontales 

 (Janson) ; British Honduras, river Sarstoon, river Hondo (Blancaneaux). 



In shape this species resembles B. perplexus, at least the male, which is narrower 

 than B. hypochalceus, Har., from which the close punctuation of the thorax and the 

 double rows of punctures at the elytra separate it. B. per -plexus differs principally by 

 its light fulvous colour, with but a slight metallic gloss, and by the more regularly 

 punctured thorax ; the female of the present species is broader, but resembles the male 

 in all other respects. B. cnrtus, Lefev., seems to be another closely-allied species ; but 

 the thorax here is described as remotely punctured, and the interstices of the elytra 

 very finely punctate. A specimen from San Geronimo is figured. 



7. Rhabdophorus chontalensis. 



Ovate, convex, obscure fulvous ; above submetallic green or aeneous ; antennae testaceous, joints seventh and the 

 last two piceous ; thorax finely punctured ; elytra eostate at the sides, finely punctate-striate. 



Length 2 lines. 



Head swollen at the vertex, nearly impunctate ; clypeus distinctly separated from the face, closely punctured, 

 its anterior margin nearly straight ; labrum fulvous ; antennae more than half the length of the body, 

 with the seventh and the last two joints piceous ; thorax very transverse, its sides greatly rounded, ante- 

 riorly narrowed, but little deflexed, the lateral margins scarcely visibly angulate, tbe anterior angles acute, 

 but not produced ; surface very finely and rather closely punctured ; scutellum broadly ovate ; elytra 

 distinctly transversely depressed below the base, and longitudinally within the humeral callus, finely and 

 remotely punctate-striate towards the suture, the latter accompanied by a row of closer punctures, which 

 change posteriorly into an impressed line, the sides more strongly punctured, the interstices forming two 

 or three more or less distinct longitudinal costae, which are more strongly visible towards the apex. 



Hab. Nicaragua, Chontales (Janson). 



Only two specimens of this very distinct species are before me, one of much lighter 

 colour than the other and probably immature ; the fine punctuation of the thorax 

 and that of the elytra (the punctures on the latter being, at the same time, very 

 remotely placed) will easily distinguish this species from the others described here. 



8. Rhabdophorus violaceus. 



Ovate, convex, violaceous blue ; antennae (their basal joints excepted) and the tarsi black ; thorax finely, 



elytra more strongly and regularly punctate-striate. 

 Length 2 lines. 

 $ larger ; thorax much dilated at the middle ; elytra deeply depressed below the base. 



Length 3 lines. 



Head with a narrow central groove, distinctly punctured between and in front of the eyes, the latter very 

 large and prominent ; clypeus square-shaped, punctured on the disk, rather convex, its anterior margin 

 nearly straight ; palpi testaceous, their terminal joint piceous ; antennae two thirds the length of the body, 

 slender filiform, black, the first five joints testaceous below ; thorax narrowly transverse, much dilated 

 at the sides, almost angulate behind the middle, with a very distinct margin, the angles obtuse and rather 

 rounded, surface rather closely and finely punctured ; elytra convex, distinctly narrowed towards the 



