476 COLYDIIDA. 
1. Acropis serrata, sp. n. 
Minus elongata, ferruginea, setositate depressa minus dense vestita; elytris in interstitio tertio tuberculis 
duobus, in interstitio quarto tuberculo singulo minore munitis. 
Long. 3} millim. — 
Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
Thorax transverse, a little curved and minutely serrate at the sides; the surface rather 
densely and roughly tuberculate, and with some ochraceous setosity along the middle. 
Elytra rather short, with regular series of very deep, somewhat coarse punctures, 
a laterally compressed tubercle on the-second interstice in front, a much smaller 
one on the fourth interstice, and another compressed tubercle on the second interstice 
just before the declivity; the squamosity is scanty—it consists of some ochraceous 
scale-like sete, and some finer, suberect, black sete, serially disposed, the summits of 
the tubercles bearing a more condensed black setosity. The legs are reddish, with some 
fine subdepressed setze on the outer margins of the tibiz. 
Ten specimens. 
2. Acropis championi, sp. n. (Tab. XV. fig. 8.) 
Fusca, setositate flavescente depressa, minus dense vestita, sat variegata; elytris prope suturam tuberculis 
tribus in lineam rectam dispositis, exterius tuberculisque duobus ; tibiis externe hispidis. 
Long. 4 millim. 
Hab. Guatema.a, Cerro Zunil (Champion). 
Head of a dark ferruginous colour, covered with rough, depressed, ochraceous 
setosity. Thorax much rounded at the sides in front, coarsely rugosely sculptured, 
bearing scanty ochraceous setosity. Elytra moderately long, dark ferruginous at the 
base, elsewhere nearly black except for the variegate setosity, the most conspicuous 
of which consists of two white marks before the apex; they are rough and present 
distinct series of deep punctures ; near the suture there are three elevated tubercles, the 
hind one the largest, and outside the middle one are two other tubercles. The tibie 
have some minute suberect sete on their outer face. 
We have only received one example of this species. As it marks a more northern 
extension of this peculiar genus, and is evidently distinct from A. recta or A. serrata, 
I have described it. In some respects it appears to be more like the original species 
of the genus—A. tuberculifera—figured by Burmeister; but the sete on the tibie in 
A. championi are quite minute. The number and disposition of the tubercles on the 
elytra readily distinguish the species from the other two here described. 
3. Acropis recta, sp.n. (Tab. XV. fig. 9.) 
Picea, tomento variegato vestita, elytro singulo prope suturam tuberculis tribus in lineam rectam dispositis. 
Long. 43 millim. 
Hab. Payama, Volcan de Chiriqui 2500 to 4000 feet (Champion). 
