GERMARIELLA.—CYPHUS. 235 
it is in the insects here placed under Nauwpactus. One only of the two species is at 
present known from within our limits. 
1. Germariella juvencus. 
Curculio juvencus, Oliv. Ent. v. no. 83, p. 352, t. 1. fig. 11°. 
Cyphus juvencus, Boh. in Schénh. Gen. Cure. i. p. 623°; vi. 1, p. 145°; Lacord. Gen. Col. vi. 
pp. 114, 115, nota*; Labr. et Imhoff, Gen. Cure. ii. t. 62°. 
Curculio diadema, Fabr. Ent. Syst. i. 2, p. 465°. 
Cyphus columbianus and sulphureus, Jekel, in litt.’. 
Hab. Nicaragua, Mosquito Coast (ex coll. Jekel), Chontales (Janson).—Soutn 
America, Colombia’, Venezuela, Cayenne! 2°56, Amazons‘. 
I have seen three specimens of this widely distributed ‘Tropical-American insect 
labelled as from Nicaragua. It has the prothorax very deeply bisinuate at the base ; 
the elytra strongly lobed in front, with the humeri angular, and the seriate punctures 
somewhat conspicuous; and the anterior tibie feebly unguiculate*. The entire 
surface is uniformly clothed with cinereous scales, which in fresh specimens are again 
hidden by a dense sulphur-yellow or brownish exudation. G. pudens (Boh.), of which 
I have seen a long series from the Windward Is., has the prothorax and elytra more 
feebly sinuate at the base. 
CYPHUS. 
Cyphus, Germar, Ins. Spec. nov. p. 427 (1824) (part.) ; Schénherr, Cure. Disp. Meth. p. 107 ; 
Gen. Cure. i. p. 620, and vi. 1, p. 141; Lacordaire, Gen. Col. vi. p. 114; Horn, Proc. Am. 
Phil. Soc. xv. p. 89. 
Schénherr included a variety of forms under Cyphus, and the type of his Stirps I. 
(C. argillaceus, Germ. = gibber, Pallas) does not agree very well with the N.- and 
Central-American species, which mostly belong to his Stirps Il. (type Curculio 
16-punctatus, L.); C. guvencus and its allies are here placed under a separate genus, 
and there are other southern forms that will probably have to be eliminated sooner or 
later. The species from our region placed under Cyphus may be known by their 
subquadrate, broad, sulcate rostrum; the very prominent, convex, laterally placed 
eyes; the comparatively short scape and the short obconic outer joints of the 
funiculus of the antenne ; the bisinuate, feebly margined base of the prothorax; the 
fusion or approximation of the outer elytral striae from about one-third from the base ; 
the prominent humeri; the minute or obsolete scutellum; the laminate, squamose 
apex of the posterior tibiz, with the glabrous articular surface ascending ; and tre 
broad tarsi, at least in the males. The females of all of them have an oblique 
impressed line on each side of the fifth ventral segment in front. 
* Lacordaire* says they are without mucro. 
+ ©. gibber has an irregular additional row of punctures on the alternate elytral interstices, the outer 
strice free, the rostrum longer, &c. 
