474 SEREICOKNIA. 



ALAMPES. 



Prothorax without luminous vesicles; mesosternum raised behind, the sides of the cavity vertical; meta- 

 sternum strongly produced in front and convex between the middle coxse ; tarsi simple ; the other 

 characters as in Pyrojohorus. 



This genus is proposed to include Pyrophorus abnormis and P. melanoxanthus, Cand., 

 and the new species described below. These insects have the intercoxal portion of the 

 metasternum considerably produced in front, the mesosternum being thus forced into a 

 vertical position, as in the genera Spilus and Spilomorphus of the group Dicrepicliini, 

 and Probothrium of the group Ludiini. From Photophorus, which has the mesosternum 

 still more protuberant behind, it differs in the simple tarsi. 

 Elytra with a black submarginal stripe extending from the shoulder to the apex ; 

 antennae in the male extending to the hind angles of the prothorax, the basal 



joint at most partly testaceous ; scutellum cinereo-pubescent melanoxanthus. 



Elytra usually with a narrow oblique darker stripe about the middle ; antennse 

 in the male shorter, the three basal joints testaceous ; scutellum blackish- 

 brown-pubescent vestitus. 



1. Alampes melanoxanthus. (Tab. XXI. figg. 1, s ; la, genitalia, d 1 .) 



Pyrophorus melanoxanthus, Cand. Elat. Nouv. i. p. 51 (1864) l ; Steinh. Col. Hefte, xiv. p. 133 2 . 

 Hab. Panama, Bugaba {Champion). — Colombia 2 ; Venezuela 1 . 



One male example from Chiriqui, agreeing with others from Colombia and Venezuela 

 in the Janson collection. This insect is of a rufo-testaceous or testaceous colour, with 

 the base of the head, a large oblong-oval patch on the disc of the thorax, the scutellum, 

 and a submarginal vitta on each elytron extending from the shoulder to the apex, black. 

 The antennae are short, scarcely extending beyond the hind angles of the thorax in the 

 male, stout and strongly serrate, black, the basal joint partly testaceous; the third 

 joint is slightly longer than the fourth. The scutellum is densely punctured. The 

 legs are testaceous or fusco-testaceous, with the tibiae more or less piceous. The 

 pubescence is dense. 



2. Alampes vestitus. (Tab. XXI. figg. 3, $ ; 3 a, genitalia, 6 ). 



Elongate, rather narrow, moderately convex, shining ; piceous or obscure castaneous, paler beneath, the elytra 

 rufo-castaneous or rufo-testaceous, each with a long oblique stripe extending from some little distance 

 below the shoulder to the suture (the two forming a common V-shaped mark) ; the antennas piceous, 

 with the three basal joints rufo-testaceous ; the legs fusco-te3taceous, the tibiae usually darker ; the 

 upper surface densely clothed with rather coarse fulvo-cinereous pubescence, the scutellum blackish- 

 brown-pubescent, the oblique elytral stripe fusco-pubescent, the under surface cinereo-pubescent. Head 

 closely, coarsely punctate, broadly depressed in front, the eyes moderately large ; antennse short, not 

 nearly reaching the hind angles of the prothorax in the male, still shorter in the female, rather stout 

 and strongly serrate, the third joint a little longer than the second. Prothorax longer than broad, very 

 gradually narrowing from the base, the sides slightly rounded in front in the male, a little more rounded 

 in the female, somewhat flattened laterally ; the hind angles long, stout, and moderately divergent, 

 distinctly carinate; the surface closely, rather finely punctate, the punctuation becoming coarser and 



