APION.—HETERAPION. 85 
86. Apion basale, sp.n. (Tab. III. fig. 25.) 
Robustum, plumbeo-nigrum, setosum, corpore ad latera albido-vestito, antennis pedibusque flavis, geniculis 
tarsisque nigricantibus ; prothorace robusto, dense fortiterque punctato. 
Long. 3 millim. 
Hab. Mexico, Atoyac in April (H. H. Smith), Jalapa (Hoge). 
Rostrum rather stout, nearly as long as the head and thorax, punctulate and finely 
setose, except at the tip; eyes elongate, a little prominent, separated by a somewhat 
narrow interval; antenne inserted about the middle of the rostrum, yellow, darker 
towards the extremity. Thorax large, its base forming a sort of margin to the elytra, to 
which it is very closely applied, and extending outwards so as to embrace the shoulders, 
much narrowed in front, very coarsely punctate, finely setose, with a channel at the base in 
the middle. Elytra rather broadly sulcate, with flat interstices and delicate pubescence. 
Legs stout, reddish-yellow ; coxe, trochanters, knees, tips of the tibie, and the tarsi 
black ; sides of the body densely clothed with white setosity ; middle coxee moderately 
separated. 
Two specimens have been received of this distinct species. 
HETERAPION, gen. nov. 
Tarsi quasi triarticulati, articulo tertio a secundo fere occulto. Femora inflata. 
This genus agrees with Apion in its characters except as to the points mentioned 
above. The tarsi have a knotted appearance: the first joint is slender at the base, 
broader and convex at the apex; the second joint is slender at its articulation with the 
basal one, and at its apex it so closely embraces the third joint that the line of demarca- 
tion between them can scarcely be detected, but when perceived it is found that only 
the bilobed apex of the third joint remains visible; the claw-joint is slender, the claws 
small and lobed at the base. ‘The trochanters are elongate, and are interposed between 
the coxe and the femora as in Apion; the femora are slender at the point of articula- 
tion with the trochanter, but are inflated in the middle. 
1. Heterapion femoratum, sp. n. (Tab. III. fige. 26; 26 a, tarsus.) 
Nigrum, pube tenui erecta vestitum, femoribus rufis ; prothorace elongato, fere opaco, subsericante. 
Long. 27 millim. 
Hab. Mexico, Atoyac in Vera Cruz in April (7. H. Smith). 
Rostrum elongate, cylindrical, slightly curved, shining, sparingly punctate; eyes 
elongate, rather convex, separated by a narrow space which is obsoletely bicarinate ; 
antenne inserted at about one-fifth of the length of the rostrum in front of the eyes, 
black, the club solid. Thorax elongate, without punctuation, with a silky opacity of 
the surface, and a short channel in the middle in front of the base. Elytra not sulcate, 
but striate, the strie bearing rather large but obsolete distant punctures, the interstices 
feebly convex. Middle cox not widely separated. 
