ACROPTERON. 257 
female), and the femora fringed with short hair beneath, in the male; metasternum rather closely and 
somewhat coarsely, the first three ventral segments comparatively coarsely and rather closely, the other 
segments more finely, punctured. 
Length 9-11 millim. (¢ 2.) 
Hab. Panama, Bugaba, Volcan de Chiriqui, David (Champion). 
Many examples. This species is not very nearly allied to any other described here ; it 
may be known by its rather dull brownish-bronze colour, coarsely and subconfluently 
punctured thorax, the disc of which is only feebly impressed behind, the compara- 
tively coarsely punctured elytra, and the simple posterior tibize in the male; an allied 
form is found at Rio Janeiro. 
10. Acropteron levipes. 
Greenish-bronze, shining. Head rather coarsely, irregularly, and not very closely punctured, the frontal 
excavation moderately deep; antenne piceous, the basal joint and the extreme apex red; prothorax with 
very prominent produced angles, the anterior ones narrowly rounded, the hind ones acute, the disc feebly 
transversely impressed immediately before the base, the basal foveee moderately deep, the base almost 
straight in the middle, the surface closely and rather coarsely, a longitudinal space on the centre of the 
disc more sparingly, punctured; elytra narrowing from the base, with rows of comparatively coarse and 
deep punctures, the terminal spines short; legs smooth, very sparingly punctured. 
Length 94 millim. (@.) 
Hab. Nicaraava, Chontales (Belt). 
One example. A. devipes will be known amongst its allies by the closely punctured 
thorax, the angles of which are all very prominent, the comparatively very smooth legs, 
and other characters given above; it is not very nearly allied to any of the other species 
noticed here; the male still remains to be discovered. 
11. Acropteron rugipes. 
Rather broad, dark reddish-brown, with a slight bronzy tint, rather dull. Head including the vertex coarsely 
and confluently punctured, the epistoma more sparingly so, the vertex obsoletely impressed in the middle, 
the frontal excavation moderately deep; antennwe brownish-piceous ; prothorax broad, the sides almost 
straight, the anterior angles prominent but obtuse, the posterior angles broad and subacutely produced, the 
disc without basal depression, the base shallowly emarginate before the scutellum, the basal fovez short 
and not extending upwards, the surface very coarsely, closely, and subequally punctured; elytra nar- 
rowing very gradually from the base, with rows of rather shallow coarsish punctures, the terminal 
spines short ; legs stout, reddish-brown, the femora smooth and sparingly punctured, the tibiee rough and 
coarsely rugulosely punctured ; beneath shining, comparatively coarsely punctured. 
Length 11 millim. (.) 
Hab. Nicaraeua, Chontales (Belt). 
One example. A. rugipes will be identified by the very coarsely and closely pune 
tured thorax, which is without basal depression ; the coarsely roughened tibiz ; and the 
rather dull reddish-brown colour, only slightly tinged with eneous. From A. agriloides 
this species will be readily known by the thorax being more quadrate in form, broader, 
much more coarsely and not quite so closely punctured, and the anterior angles less 
rounded; the still more roughened tibie, comparatively shorter form, and duller and 
less metallic colour. Like the preceding species, the female only is known. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, December 1886. 2LL 
