ATTELABUS. 9 
Eyes rather elongate, the space between them not broad, feebly sulcate. Thorax 
with an obsolete transverse depression across it behind the front margin. Scutellum 
rather narrow. Elytra with a prominent minute angle directed outwards just behind 
the shoulder, not impressed behind the scutellum; at the base with distinct series of 
punctures which become very fine and obsolete behind. | 
We have received only one example of this obscure insect. It resembles A. sedatus, 
but is distinguished by the angulated sides to the elytra. It was mounted by its captor 
on the same card with a specimen of A. corallinus, to which it is also extremely similar, 
though that species belongs to another group of the genus. 
20. Attelabus brevicollis, sp. n. 
2. Piceo-sanguineus, nudus, nitidus, antennis nigris; prothorace transverso, parce punctato, subinsequali; 
elytris pone scutellum vix impressis, subtiliter seriatim punctatis, punctis basin versus minus subtilibus. 
Long. 4 millim. 
Hab. Mexico, Tapachula in Chiapas (Hoge); Guaremaa, El Reposo (Champion). 
Although we have received only two females of this species there can be no doubt it 
is distinct from A. conicollis and A. sedatus, owing to its shorter, less smooth thorax. 
The head is bisulcate and rugose between the eyes; the thorax is shining, sparingly 
punctate, broadly but vaguely transversely depressed behind the front margin, and 
bears some small irregular depressions. In other respects A. brevicollis is very similar 
to the corresponding sex of the two species named. The summit of the vertex is 
rather deeply impressed, which leads to the supposition that the male may have a 
peculiarly formed head as in A. lesicollis. 
The localities for this species are both situate on the lower part of the Pacific slope, 
and not very far distant from each other. 
21. Attelabus melanopygus, sp. n. 
2. Parvus, brevis, convexus, nitidus, rufus, capite cum rostro antennisque, pedibus, scutello pectoreque nigris, 
femoribus basi rufa; prothorace transverso, levigato ; elytris ad basin seriatim punctatis, ad apicem 
levigatis. 
Long. cum rostro 3 millim. 
Hab. Muxico, Amula in Guerrero 6000 feet (H. H. Smith). 
Head short, the eyes very near to the thorax, rather widely separated, with a channel 
along the inner margin of each, and a groove along the middle of the front part of the 
space separating the channels; antenne short, with rather large club of three sub- 
equal joints. ‘Thorax about twice as broad as long, rounded at the sides and narrowed 
in front, smooth and shining. Scutellum moderate, a little broader than long. Elytra 
short and broad, with series of distant punctures, which are distinct only at the base 
and near the suture. Ventral segments and bases of the femora red, the pygidium black. 
This species, of which only one female example has been obtained, is allied to the 
North-American 4. analis, but by no means closely. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 3, April 1889. CC 
