TANYGNATHUS.—HETEROTHOPS. 393 
illis tantum articulis 2° et 3° fuscescentibus; prothorace fortiter transverso, elytris illo haud longi- 
oribus. 
Long. 4 millim. 
Hab. Nicaracua, Chontales (Janson). 
Antenne quite slender, but not elongate. Head short. Thorax twice as broad as it 
is long, rather broader than the elytra; the latter short and broad, very finely but not 
very densely punctured and pubescent. Hind body with the first two segments quite 
finely punctate, the base of each of the following segments also only very finely punc- 
tate, the hinder portion densely setose. 
This distinct species is known only by two male individuals; they are rather 
immature, so that their natural colour is not quite certain; but I have no doubt that 
the pallid tint of the antenne, with only the second and third joints a little more 
obscure, is natural. The comb, or file, on the front legs is largely developed. 
HETEROTHOPS. 
Heterothops, Stephens, Ill. Brit. Ent. v. p. 256; Er. Gen. et Spec. Staph. p. 515. 
This genus is widely distributed over the globe, and occurs indifferently in boreal 
and tropical regions. About thirty species are known. 
1. Heterothops remota. (Tab. VII. fig. 23.) 
Nigra; antennarum basi pedibusque testaceis ; capite ovato, oculis a collo longe distantibus ; elytris abdomine- 
que parce punctatis, hoc subversicolore. . 
Long. 6 millim. 
Hab. Mexico (flohr), Mirador (Hoge); GuatemMata, Cerro Zunil 4000 to 5000 feet, 
San Gerénimo (Champion); Panama, Volcan de Chiriqui 2500 to 4000 feet, Pena Blanca 
3000 to 4000 feet (Champion). 
Antenne rather long and stout, reaching as far back as the base of the thorax, 
black, with the basal joint red or yellow; penultimate joint not transverse. Head 
moderately long, so that the eyes are separated from the neck by a space about equal 
in length to the length of the eye. Llytra slightly longer than the thorax, sparingly 
punctured, so as to be a little shining; pubescence rather elongate. Hind body black, 
with metallic reflections, the hind margin of each segment pale, its punctuation similar 
to that of the wing-cases. | 
Although so widely distributed in Central America, I have seen only half-a-dozen 
examples of this species. The example figured is a female from Pena Blanca. 
2. Heterothops insolita. 
Nigricans ; antennarum basi pedibusque testaceis, elytris sordide testaceis ; capite ovato, oculis a collo longe 
distantibus ; elytris abdomineque parce punctatis, hoc marginibus segmentorum posterioribus testaceis. 
Long. 5 millim. 
27T 2 
