502 BRUCHIDES. 
and is margined at the sides; its process is received into a cavity on the lower face of 
the mesosternum, separated by a considerable space from the metasternum. 
Six examples were met with. The unique Mexican exponent is in an extremely 
dirty state, and is apparently a variety of narrower and more elongate form, with the 
marmorations of the wing-cases extending more to the front. 
21. Spermophagus pictus. 
Ovalis, ochraceo fuscoque variegatus ; antennis basi pedibusque rufis, illis extrorsum nigris; scutello angusto, 
elongato. 
Long. 5 millim. 
Hab. Mexico, Vera Cruz (Saldé). 
This is a very distinct species, readily distinguished by the elytra and pygidium being 
covered with numerous and very distinct marks, arranged quite irregularly, of dark 
chocolate and griseo-ochraceous colours. The eyes are small, but prominent and mode- 
rately coarsely facetted; the penultimate joints of the antenne are transverse. The 
thorax is strongly transverse, and has no coarse punctuation on the middle; there are 
some coarse punctures, much obscured by the clothing, at the sides; the surface is 
variegate with colours similar to those of the elytra, but the spots are not so sharply 
defined. The scutellum is remarkably narrow and elongate. The front coxe are not. 
very widely separated ; the prosternal process projects scarcely at all backwards, and is 
received on the anterior face of the mesosternum considerably above its lowest point. 
One example. 
22. Spermophagus barcene. 
Bruchus barcene, Dugés, Ann. Soc. Ent. Belg. xxiv. p. 37, t. 1*. 
Hab. Mexico, Guanajuato | (Salvé). 
The metamorphoses of this insect, which feeds in the seeds of Barcena guanajuatensis, 
have been described and figured as above by Dr. Eug. Dugés. 
23. Spermophagus irroratus. (Tab. XXVI. fig. 25.) 
Breviter ovalis, convexus, fusco-niger vel fusco-rufus, confertim griseo irroratus; antennis basi testacea ; 
capite angustulo, oculis nullo modo convexis, subtiliter granulatis. 
Long. 4-4: millim. 
Hab. Guatemaa, Tocoy (Champion); Panama, Bugaba, Caldera, Volcan de Chiriqui 
(Champion). 
Antenne rather short and broad, the second and third joints subequal, each rather 
longer than the fourth joint, the penultimate joints transverse. Thorax rather elongate, 
convex, much curved at the sides and narrowed in front, the sculpture quite obscured 
by the dense clothing. Scutellum short and broad, subquadrate. Elytra not very long, 
scarcely three times as long as the thorax, extremely finely striate; black, irregularly 
irrorated with grey; the thorax variegate in a similar manner, so that the upper surface 
