626 RHYNCHOPHORA. 
12. Apteromechus debilis, sp. n. 
Oblong-ovate, opaque, nigro-piceous, the antenne, the tip of the rostrum, and the tarsi in part, ferruginous ; 
the elytra densely clothed with fulvo-cinereous scales, the alternate interstices each with a row of short, 
decumbent, pallid sete; the prothorax with intermixed brown and yellowish scales, the latter condensed 
into a faint vitta down the middle; the rest of the vestiture sparse and fine. Head alutaceous, rugulosely 
punctate and squamose between the eyes, which are moderately distant ; rostrum short, feebly curved, 
shining, constricted and rugulosely punctate at the base, and for the rest sparsely, finely punctate, the 
antenne inserted near the middle, the club ovate. Prothorax transverse, rounded at the sides ; 
shallowly, confluently punctate. Elytra much wider than the prothorax, subparallel in their basal third ; 
seriate-punctate, the interstices rugulose, 3, 5, 7, and 9 raised. Beneath opaque, densely, shallowly 
punctate. Legs short; femora obsoletely dentate, the tooth on the anterior pair scarcely distinguishable. 
Length 3,4,, breadth 13 millim. ( 2.) 
Hab. Panama, Bugaba (Champion). 
One specimen. A worn male (length 24 millim.) from Tapachula, Mexico (Hoge), 
probably belongs to the same species; it has the rostrum rugose to the tip, the elytra 
partly rufo-piceous, and the anterior femora unarmed. These examples are much 
smaller than any of the allied forms, and have the prothorax and ventral segments 
more shallowly punctate. 
13. Apteromechus flavopunctatus, sp. n. (Tab. XXX. figg. 31, 31 a.) 
Ovate, nigro-piceous, the antenne and tarsi ferruginous; sparsely clothed with narrow fulvous and coarser 
ochreous scales, the latter condensed into five or six small widely scattered spots on each elytron, the 
scales on the prothorax also condensed into a faint median vitta; the elytral interstices each with a row 
of rather long, decumbent sete; the rest of the vestiture sparse and fine. Head rugulosely punctate, 
the eyes well-separated ; rostrum very short, feebly curved, broad, widening outwards, rugosely punctate, 
the antenne inserted at the middle, the club ovate. Prothorax transverse, rounded at the sides; 
confluently punctate. Elytra a little wider than the prothorax, rather short, gradually narrowing from 
a little below the base ; punctate-striate, the interstices equally convex, rugose. Beneath shining, rather 
coarsely punctate. Legs short; femora unidentate. 
Length 24, breadth 14 millim. (<¢.) 
Hab. Panama, Tolé (Champion). 
One specimen. The ovate form, the very short, rugose rostrum, the small, widely 
scattered, ochreous spots on the elytra, and the equally convex, rugose, setose interstices 
distinguish this small species. 
14. Apteromechus opacifrons, sp. n. 
Oblong-ovate, nigro-piceous, the antenne, the rostrum (except at the base), and the tarsi in part, ferruginous ; 
the elytra somewhat thickly, the rest of the surface very sparsely, clothed with small fulvous scales 
(which are arranged in fascicles on the elytra in one specimen). Head opaque, alutaceous, obsoletely 
punctate, the eyes narrowly separated ; rostrum short, feebly curved, shining, sparsely punctate, much 
smoother and almost straight in the 9, the antenne inserted at a little behind the middle, the club 
oblong-ovate. Prothorax transverse, rounded at the sides; coarsely, confluently punctate, and obsoletely 
carinate. Elytra much wider than the prothorax, subparallel in their basal half ; Seriate-punctate, the 
interstices rugulose and faintly granulate, 3,5, 7, and 9 raised, Beneath coarsely, closely punctate ; 
ventral segments 1 and 2 subconnate. Legs short; femora feebly unidentate, the anterior pair 
compressed at the base in the ¢. 
Length 33-4, breadth 12-2 millim. (¢ 2.) 
