484 7 BRUCHIDES. 
in length. Tooth of the hind femur rather elongate, slender; tibia quite without 
mucro. 
An obscure insect, which I am not able to associate with any species here described. 
It comes nearest to B. restrictus, but has the thorax more conic, with the hind angles 
more acute, and the hind tibia quite destitute of mucro. One example. 
101. Bruchus viduus. 
Minimus, niger, tenuiter griseo-pubescens; antennarum basi pedibusque anterioribus testaceis; antennis sat 
elongatis, minus crassis, subserratis; prothorace densissime sculpturato; femoribus posterioribus dente 
minuto denticulisque minutissimis armatis. 
Long. 14 millim. 
Hab. GuaTEMALA, near the city (Champion). 
Antenne rather elongate, longer than the head and thorax; third joint a little 
longer than the second or the fourth, the fifth triangular, about as long as broad, the 
penultimate joints transverse, but only slightly so. Thorax transversely conic, the sides 
rather rounded in front. Scutellum minute, covered with white pubescence. LElytra 
finely striate, only very minutely and scantily pubescent, as also is the under-surface 
of the body. ‘The front legs are yellow, the femora black at the base, the intermediate 
tibiz and tarsi yellow. 
I find it difficult to form an opinion as to the nearest ally of this obscure insect, 
put on the whole it appears best placed near B. restrictus, from which, however, it 
differs by the scanty clothing and the armature of the hind legs. The tooth of the 
femur is very minute, and there appear to be three very minute denticles beyond it 
and one or two distant denticles or serrations in front of it. The hind tibia is a little 
curvate and destitute of apical mucro. One example. 
§7. Form subcubical, very elevated ; hind femora simple, with a broad channel 
beneath, extending from the base to the apex. 
So far as our fauna is concerned, this is the most distinct of all the groups adopted 
here, and entitled in our region to generic distinction. The lower face of the hind femur 
is not in the least convex, but quite straight or very feebly concave, and is limited on 
either side by a fine line extending from base to apex, and the inner of these lines may 
be minutely crenate for all its length. The antenne are frequently flabellate in the 
male, flabello-clavate in the female. The very short thorax is much narrowed in front. 
102. Bruchus cubiciformis. (Tab. X XVI. fig. 16.) 
Niger, antennarum basi tibiisque fuscis, tarsis rufis, elytris fusco-subnebulosis, pygidio dense ochraceo-vestito, 
corpore subtus tantum tenuiter griseo-vestito ; elytris fortiter profundeque seriatim punctatis ; antennis 
maris longius, femine breviter, flabellatis. 
Long. 34 millim. 
