624 RHYNCHOPHORA. 
rugulose and finely granulate, 3, 5, 7, and 9 raised. Beneath shining, coarsely punctate. Legs short, 
the femora feebly unidentate. 
Length 44-51, breadth 2-23 millim. (¢ 9.) 
Hab. Mexico, Cordova (Sallé), Jalapa (Hége) ; Guaremaua, San Juan in Vera Paz 
(Champion). a 
Three specimens. 
7. Apteromechus melanostigma, sp.n. (Tab. XXX. fig. 28.) 
Very like A. stigmosus, but with the black patch on the elytra broader and rhomboidal in form, the markings 
between this and the base absent, and the sutural streak near the apex almost obsolete; the ventral 
segments sparsely, finely punctate. 
Length 5, breadth 23 millim. (¢?) 
Hiab. Panama, Volcan de Chiriqui 4000 feet (Champion). 
One specimen. This is a southern form of A. stigmosus, which cannot be included 
under it, the allied insects in the intervening regions being in no way intermediate. 
The elytra in this insect are marked very much as in Huxenus rhombifer. 
8. Apteromechus subfasciatus, sp.n. (Tab. XXX. fig. 29.) 
Oblong-ovate, nigro-piceous, the antennz, the apex of the rostrum, and the tips of the tarsi ferruginous ; the 
head and elytra densely clothed with small fulvo-cinereous scales, the elytra slightly variegated with 
whitish, and with a common, interrupted, transverse patch at the base, another at the middle, and a short 
streak along the suture at the apex, black, the short decumbent sete inconspicuous; the rest of the 
vestiture sparser, fulvous, the prothorax with long, scattered, transversely arranged scales. Head densely 
punctate, smoother and shallowly foveate between the eyes, which are well-separated ; rostrum feebly 
curved, depressed at the base, shorter than the prothorax, shining, very sparsely punctate at the base 
and almost smooth thence to the tip, the antenne inserted behind the middle, joints 3-7 of the funiculus 
transverse, the club oblong-ovate. Prothorax broader than long, rounded at tihe sides, the apex angularly 
produced in the centre ; confluently punctate, carinate anteriorly. Elytra much wider than the prothorax, 
subparallel in their basal half; seriate-punctate, the interstices rugulose and finely granulate, 3, 5, 7, 
and 9 raised. Beneath shining, coarsely, rather sparsely punctate. Legs short, stout; femora feebly 
unidentate. 
Length 54, breadth 24 millim. (9.) 
Hab. Guatemata, El Tumbador, Pacific slope ( Champion). 
One specimen. This species may be recognized by the angularly produced anterior 
margin of the prothorax, the almost smooth rostrum, and the faintly bifasciate disc of 
the elytra. 
9. Apteromechus rugirostris, sp. n. 
Oblong-ovate, black, the antenne and the tips of the tarsi ferruginous; the elytra thickly clothed with rather 
coarse yellowish-cinereous scales, with a broad, ill-defined, anteriorly dilated space, extending from the 
base to beyond the middle, the sides, and a trausverse space at the apex, more sparsely clothed with 
small brown scales, the third interstice with an ochreous spot at the base, the alternate interstices set 
with fine, decumbeut sete; the rest of the vestiture sparse and fine. Head rugulosely punctate, the 
eyes coarsely facetted, transverse, and narrowly separated ; rostrum short, very stout, curved, rugosely 
punctate to the tip, obsoletely carinate, the antennz inserted at the middle, the club stout, oblong-ovate. 
