148 RHYNCHOPHORA. 
PHRIXOSOMA, gen. nov. 
Caput vix rostratum. Oculi bipartiti. Antenne lateraliter inserte, funiculo 6-articulo, articulis 2°-6 
latitudine crescentibus, clava haud magna, ovali, compressa, pubescente, suturis tribus leniter curvatis 
instructa. Tibise versus apicem dilatate, margine superiore in lobum serratum explanato; tarsi breves, 
articulo 3° angusto, simplici. 
Head very shortly rostellate ; eyes bipartite, the divisions small, flat, rather widely separated, not united by a 
carina or fold, the superior semicircular, the inferior larger, semielliptical, their contiguous borders 
straight ; antenne laterally inserted at the apex of a deep groove passing along the buccal margin to 
meet its fellow on the gula, with a short six-jointed funiculus, the basal joint globose, the succeeding 
joints transverse, widened towards the club, which is rather small, oval, flattened, pubescent, with three 
indistinct slightly curved sutures, the upper half of the basal suture alone being thickened and well- 
marked. Prothorax semielliptic, not bordered laterally. Scutellum not depressed. Elytra separately 
rounded, elevated and crenate at the base. Prosternum short before the nearly approximate anterior 
coxe. First abdominal segment as long as the second and third together. Tibis widened apically, with 
the upper margin dilated towards the apex into a rounded serrate lobe. Tarsi not long, the three first 
joints short, subequal, the third narrow, emarginate at apex. 
In the shape of the body, and in the bipartite eyes and simple tarsi, the single 
species appears to show affinities with the rather isolated genus Polygraphus. But it 
differs in possessing a six-jointed funiculus and a club traversed by sutures, which are, 
however, indistinct. Moreover the sculpture and vestiture do not conform with that 
found in Polygraphus, of which the species are extremely uniform in these respects. 
1. Phrixosoma rude, sp.n. (Tab. VI. figg. 12; 12a, antenna; 120, middle 
leg; 12¢, hi d leg.) 
Oblongum, subnitidum, breviter pilosum, nigrum vel piceo-nigrum, antennis et pedibus ferrugineis ; prothorace 
paullo latiore quam longiore, antice constricto, lateribus postice parallelis, supra dense asperate punctato, 
linea media elevata levi; elytris striatis, interstitiis asperatis breviter setosis. 
Long. 2°4 millim. 
Oblong, black or piceous-black, with the anterior margin of the prothorax and elytra a little lighter, covered 
with short suberect hairs. Head convex, closely granulate ; rostrum short and wide, indistinctly carinate 
over mouth. Prothorax a little broader than long, narrowed anteriorly, parallel-sided for the posterior 
third, the apical margin obtuse; surface slightly shining, with close asperate punctuation, rather 
sparser along the median elevated line. Scutellum triangular, rugose. Elytra as wide as the prothorax 
and rather less than twice as long, their basal margins slightly elevated, crenate, and closely applied to 
the prothorax, the sides parallel to the middle, thence obliquely rounded to the apex ; surface with narrow 
deep striz, not evidently punctured, interstices flat, closely asperate, with short, erect, non-seriate sete. 
Legs dark ferruginous. 
Hab. Panama, Volcan de Chiriqui (Champion). 
Three examples, without sexual distinctions. This species is curiously like 
Phieotribus discrepans, differing of course in the structure of the antennal club. 
PHLQOBORUS. 
Phleoborus, Erichson, Wiegm. Archiv, 1836, 1, p. 54; Lacordaire, Gen. Col. vii. p. 372 ; Chapuis, 
Syn. Scol. p. 12 (Mém. Soc. Liége, 1873, p. 220). . 
This and the allied genus Phlwotrupes have been placed by Lacordaire in a separate 
