BRUCHUS. 443, 
7. Bruchus serratissimus. 
Convexus, elytris oblongo-quadratis ; densius vestitus, variegatus ; prothorace anterius angusto, subinequali, 
medio fusco-bilineato; elytris nigro-fuscis, griseo-variegatis; pygidio medio fusco, utrinque albido; 
corpore subtus pallide griseo-vestito; antennis sat elongatis, apicem versus paullulum crassioribus, testaceis, 
articulis penultimis fuscis; femoribus posterioribus maxime dilatatis, subtus dimidio posteriore dense 
pectinato. 
Long. 3 millim. (capite deflexo). 
Hab. GuateMaALa, Paso Antonio 400 feet (Champion). 
Of this species only a single example was obtained, pretty certainly a female; though 
apparently allied to B. boops, it possesses some important distinctions. The head is 
broad and short, the eyes only slightly prominent, finely granulate. The thorax has 
the sides arcuately concave, the hind angles acute, the base strongly lobed in the 
middle, the surface slightly uneven, without any peculiarity in front of the scutellum. 
The four anterior legs are yellow. The hind femur bears a sort of elevated lamina on 
the lower half, the lower margin of which is pectinate, the teeth being thirteen in 
number, the inner one twice as long as any of the others. The metasternum is nearly 
flat, without angular prominence or declivous front portion. 
8. Bruchus juno. 
Brevis, convexus, elytris quadratis, variegatis; antennis pedibusque anterioribus testaceis, illis articulis penul- 
timis nigricantibus, articulis 5°-10™ intus prolongatis; capite breviter rostrato, oculis prominulis, vertice 
carinato; prothorace anterius angusto, pallide fusco-tomentoso, subvariegato, ante scutellum elevato, 
ibidemque triangulariter albido; elytris subtiliter striatis, fusco-tomentosis, nigro albidoque maculatis, 
posterius nigricantibus; pygidio niveo-tomentoso, utrinque nigro maculato; corpore subtus griseo-vestito, 
parapleuris plaga maxima nigerrima; pedibus posterioribus nigris, femoribus pallide fusco-vestitis, tarsis 
rufescentibus ; femoribus valde incrassatis, subtus versus apicem dentibus sex instructis, dente anteriore: 
quam ceteri paullo longiore. 
Long. 2 millim. (capite deflexo). 
Hab. Guatemaua, Mirandilla (Champion); Panama, David, Volcan de Chiriqui 4000 
feet (Champion). 
This elegant little insect differs from the true Pachymeri in the structure of the 
antenne, which in the female have the penultimate joints a good deal produced in 
front, while in the male they are strongly pectinate; the peculiar angular white mark 
in front of the scutellum encloses a small depression; the middle of the breast is 
rather convex, but not in the least angular, and the apex of the mesosternum between. 
the front coxee descends to the lower part of the breast. The structure of the hind 
femora is a considerable approximation to that of the genus Caryoborus, but the pro~ 
thorax is extremely different from that of Caryoborus, and is of the normal Pachymerus 
type. 
Four examples were met with ; the elytra of the one found at David are not nigrescent 
behind. 
312 
