456 COLYDIIDA, 
2. Aneumesa costata, sp.n. (Tab. XIV. fig. 16.) 
Ovalis, supra convexa, testacea, fusco-signata, subnitida ; prothorace elytrisque costatis, his intervallis biseriatim 
punctatis. 
Long. 2? millim. 
Hab. GuaTEMALA, Purula (Champion). 
Although closely allied to A. atomaria, this species is of considerably larger size, 
and is easily distinguished by the comparatively more shining surface, by the more 
distinct sculpture of the elytra, and the more broadly explanate margins. 
Head _ broad, flat, fusco-testaceous, paler in front; antenne clear yellow. Thorax 
rounded at the sides; hind angles obtuse: lateral margins broadly explanate; the cost 
strongly elevated, waved; the disc rather flat, a little shining, sparingly punctate. 
Elytra with the coste finely crenate at the summit, the broad depressed intervals a 
little shining, each with two very definite series of rather large punctures. One 
example. 
MICROSICUS, gen. nov. 
Antenne decem-articulate ; clava uniarticulata. Sulci antennarii desunt. Pedes breves, femorum apicibus 
haud liberis. 
Antenne very small, with quite undivided terminal joint. Antennary grooves absent. 
Anterior acetabula open. All the coxe moderately separated. Ventral segments 
short. Legs very short; apices of the femora not projecting in the least beyond the 
epipleure ; tibiz short and slender, not thicker at the apex, clothed externally with 
short depressed sete, the terminal spur very minute; tarsi with the basal three joints 
short, subequal. 
This genus is allied to Cicones, from which it is distinguished by the absence of anten- 
nary grooves and by the short legs. The North-American Synchita parvula resembles 
Microsicus very greatly; but it has the antennary grooves as well developed as they are 
in Cicones, so that it would be better, I think, that it should form a distinct genus. 
1. Microsicus setosus, sp.n. (Tab. XIV. fig. 17.) 
Testaceus, supra fusco-variegatus, limbo ciliato, setis numerosis irregulariter dispositis vestitus ; elytris pre- 
terea setis crassioribus, erectis, seriatis, ornatis. 
Long. 14-12 millim. 
Hab. GuatuMaLa, El Tumbador, Pantaleon, Zapote (Champion). 
Thorax transverse, nearly straight at the sides; hind angles slightly obtuse; lateral 
margins finely crenate and armed with short sete; the surface very slightly uneven, 
setose; the sides narrowly explanate. Elytra short, yellowish, with numerous black 
marks ; sculpture very indistinct, owing to the plentiful setosity ; they are not costate, 
though they have at first sight the appearance of being so, owing to the larger sete 
being arranged in a serial order. Tegs very short, pale yellow. 
