218 RHYNCHOPHORA. 
(Sallé, Hoge, H. H. Smith), Vera Cruz!; British Hoypuras, Rio Hondo (Blancaneaua) ; 
Gvatema.a, Livingston, Trece Aguas (U.S. Nat. Mus.), Cubilguitz, Cahabon, Chiacam, 
Panzos, La Tinta, Tamahu, Senahu, San Juan, Sabo, San Gerdénimo, Cerro Zunil, 
Zapote (Champion), Coban (Conradt); Satvabor, Sonsonate (U.S. Nat. Mus.) ; 
Nicaragua (Sallé), Chontales (Janson); Costa Rica, San José (Biolley), Piedras 
Negras (U.S. Nat. Mus.).—Antiuuzs, Grenada and St. Vincent. 
A common Central-American insect replaced southward by allied forms. It is very 
variable in size, and in the colour of the vestiture, according to the predominance of 
the light (cinereous or pale brown) or dark (blackish) scales. P. nubilosus * was based 
upon a pallid, faintly maculate, feebly setose example, and P. depressifrons (the type 
of which I have seen) upon a darker, sharply marked, strongly setose insect. In the 
latter the elytra have a black post-median fascia followed by an oblique white band, 
both of which are sometimes reduced to an oblong streak on each elytron. In the 
three specimens from Zapote the dark scales predominate, leaving scattered oblong 
cinereous spots on the elytra, somewhat as in the Antillean P. modestus. The sete 
are suberect and arranged in a single scattered series down each elytral interstice ; 
in some specimens they are quite short. The two basal joints of the funiculus are 
subequal in length. 
2. Polydacrys seriegranosus, sp. n. (‘Tab. IX. fig. 18, 2.) 
Polydacrys seriegranosus, Jekel, in litt. 
Moderately elongate, piceous or nigro-piceous, the antenns partly or entirely ferruginous ; clothed with small 
brown and whitish or cinereous scales, the latter condensed on the elytra into an oblique, more or less 
distinct, subapical fascia and one or two spots on the middle of the disc, the prothorax sometimes with 
a faint pallid line on each side; the upper surface also set with numerous stiff, suberect, blunt, light and 
dark sete, which are uniseriately arranged down each elytral interstice, the legs strongly setose. Head 
and rostrum densely punctate, together a little longer than the prothorax, the head with a short sulcus 
between the eyes, the nasal plate almost smooth and limited behind by a very prominent v-shaded ridge, 
which is produced posteriorly into a short carina; eyes convex ; joint 2 of the funiculus slightly shorter 
than 1. Prothorax nearly as long as broad, somewhat widened at the middle; closely, finely punctate 
and granulate. Elytra gradually widened to the middle and there nearly twice as wide as the prothorax, 
the apices conjointly produced into a compressed, blunt, dentiform prominence at the sutural angle 
(2? wanting in ¢); coarsely punctate-striate, the punctures transverse, the interstices feebly convex and 
each with a series of smooth, scattered, prominent granules. Anterior tibiz bowed at the apex, sharply 
unguiculate and serrulate. 
Length 54-7, breadth 2-24 millim. (Q.) 
Hab. Panama, Volcan de Chiriqui (Champion).—Cotoma1a (Mus. Brit., coll. Solari). 
Three specimens of this species have been found in Chiriqui, and others from 
Colombia are contained in various collections. The tubercles on the elytral interstices 
vary in size and number, these being wholly absent in the variable P. depressifrons, 
the latter also wanting the compressed prominence at the sutural angle. The 
mandibles have a stout, conspicuous, truncated process in front in both species, 
* Type probably lost. 
