466 BRUCHIDES. 
transverse. Head very short; eyes very widely separated. Thorax short, strongly 
narrowed in front, coarsely punctate, the sculpture concealed by the yellow, unicolorous 
pubescence. Elytra rather elongate, finely striate, the interstices impunctate. Pygidium 
red. Under surface black, except the sides and extremity of the hind body. Legs 
entirely red. Hind femora slender, with only a small tooth; tibiee without mucro. 
Four examples of the form with unicolorous elytra were met with, and a similar 
number of the variety with the base and apex of the wing-cases darker, causing a faint 
broad fascia across the middle. The last ventral plate is rather elongate, but in the 
male is a little shorter in the middle owing to the greater inflection of the extremity of 
the pygidium. This is the only sexual character I can observe. ‘The femora are not 
canaliculate. The fasciate variety is represented on our Plate. 
58. Bruchus laminifer. 
Subovalis, sat convexus, niger, tenuiter pruinosus, subnitidus, antennarum basi pedibusque rufis; prothorace parum 
elongato, antrorsum fortiter angustato, lateribus parum rotundatis, dense punctulato; elytrorum interstitiis 
dense punctulatis; femoribus posterioribus dente sat elongato instructis. 
Long. 32 millim. 
Hab. Guatemata, Mirandilla 1700 feet (Champion). 
Antenne short, very stout; five basal joints yellow, the others dark; penultimate 
joints very strongly transverse. Head rather narrow; eyes widely separated. Thorax 
and elytra sparingly and equally covered with a very fine white pubescence, which leaves 
the surface somewhat shining; they are densely and finely punctulate, the latter with 
the moderately fine strie very distinctly punctate. Pygidium rather large and broad, 
the white pubescence on it and the under-surface more dense. Legs entirely bright red, 
the hind femora armed with a moderately long tooth; the tibie straight, armed at the 
apex with conspicuous digitations, of which the anterior is not longer than the others. 
Front coxe separated by a distinct lamina. In the female the last ventral ring is 
slightly longer than the penultimate; in the male it is shorter in the middle, and in 
this sex the maxillary palpi are unusually elongate and slender. The femora are not 
canaliculate. 
Two pairs were found. In one example the surface is fuscous instead of black, pro- 
bably connected with immaturity of the specimen. 
59. Bruchus instabilis. 
Brevis, niger, ochraceo vestitus ; antennis pedibusque rufis, elytris vel rufis, vel nigris, vel rufo-maculatis ; pro- 
thorace transversim conico, fortiter punctato; elytris minus tenuiter striatis, striis punctatis, interstitiis 
subtiliter alutaceis ; pygidio magno convexo; femoribus posterioribus dente parum prominulo instructis. 
Long. 22 millim. 
Hab. Mexico, Toxpam, Teapa (Sal/é), Paso del Macho (Hége); GuaTEMALA, near the 
city, Chiacam, San Gerénimo, Capetillo (Champion) ; Honpuras (Sai/é). 
Thorax much narrowed in front where the sides are not rounded, quite dull, the 
