ALEOCHARA. 153 
margin of the dorsal plate of the seventh segment of the hind body slightly emarginate, 
and may be females. The species is not closely allied to any other; it is a little similar 
in general appearance to A. bimaculata; the middle coxe are well separated. 
15. Aleochara torquata. 
Nigra, subtiliter pubescens, antennarum basi, palpis pedibusque fuscis; antennis parum elongatis, articulis 
40_10™ transversis ; capite fortiter punctato, abdomine sparsim obsolete punctato, segmentis 2°-5™ summa 
basi fortiter profunde punctato. 
Long. 5 millim. 
Hab. GuateMaLa, Quiche Mountains 7000 to 9000 feet (Champion); Panama, Volcan 
de Chiriqui 4000 to 6000 feet (Champion). 
Antenne blackish, rather paler at the base, third joint about equal to the second in 
length ; fourth a good deal smaller than the fifth, transverse ; fifth and following joints 
rather strongly transverse; terminal joint not elongate, acuminate. Palpi piceous, with 
pale slender terminal joint. Head narrow, coarsely and rather closely punctate. Thorax 
not strongly transverse, coarsely and rather closely punctate. Elytra about as long as 
the thorax, closely and moderately coarsely punctate. Hind body with only fine and 
scanty punctuation, except on the depressed portion at the base of each of segments 
two to five. Legs infuscate red, with the tarsi red. 
I think this will prove a distinct species from A. salle (to which, however, it is 
extremely closely allied), chiefly because the sculpture of the hind body is much less. I 
have seen only two individuals; and they are not very similar to one another—the one 
from Guatemala being considerably nearer to the Mexican species than is the other 
from Panama. 
16. Aleochara angusticeps. 
Gracilis, nigra, parce pubescens, antennarum basi palpisque fuscescentibus, pedibus fusco-rufis; antennis 
articulis penultimis haud transversis, articulo ultimo elongato; prothorace vix transverso, parce punctato ; 
abdomine segmentis 2°-5™ basi dense fortiterque punctato, apice segmentoque sexto fere impunctatis. 
Long. 5 millim. 
Hab. GuatuMata, Paso Antonio 400 feet (Champion). 
Antenne rather elongate, nearly black, with the base more dilute, third joint about 
equal to the second, fourth and following each rather longer than broad; terminal 
joint remarkably elongate, longer than the two preceding together. Head very 
narrow, sparingly and obsoletely punctate. Thorax nearly as long as broad, very 
sparingly punctate. Elytra about as long as the thorax, coarsely, moderately closely 
punctate. 
This insect, as well as those I have placed near it, is very similar to the European 
species of the A. mesta group; and in A. angusticeps, as in A. mesta, the mesosternal 
carina is extremely fine. I have seen only two individuals, badly preserved, and with 
the greater part of their pubescence removed. 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, May 1883. AX 
