CHRAMESUS.—PROBLECHILUS. 171 
contiguous decumbent yellow-cinereous scales, and with single series of short sete arising from minute 
granular elevations, the base of the sutural interstices impressed. Underside fuscous, pubescent ; legs 
ferruginous. 
Hab. Guatemaa, Las Mercedes (Champion); Panama, Bugaba (Champion). 
One example of different sex was taken at each locality. The species compared 
with C.icorie is broader and more robust; the antenna, particularly the club, are more 
infuscate; the prothorax is shorter, more regularly rounded at the sides and apex, and 
produced more at the base; its surface is less conspicuously squamous and more finely 
sculptured. The elytra are brighter in colour, more strongly striate, with shorter 
scales and sete, and the rugosities towards the base inconspicuous. 
PROBLECHILUS. 
Gymnochilus, Eichhoff, Berl. ent. Zeitschr. 1867, p. 399. 
Problechilus, Kichhoff, Rat. Tom. p. 167. 
The species comprising this genus are easily distinguished by their short-oval 
Cryphalus-like form, by the possession of a seven-jointed antennal. funiculus, and an 
oval flattened club, the sutures of which are curved and superficial. The prothorax 
is margined at the sides almost to the apex, where the marginal line is curved upwards 
to become lost in the anterior row of asperities. Two have been described—one from 
Mexico, and the other from Colombia and Venezuela (Moritz). 
The original name of the genus, Gymnochilus, was changed by Eichhoff in order not 
to clash with Gynmnocheila (or Gymnochila), which had been employed by Klug in 
1834 for a genus of Coleoptera. The name substituted may be therefore conveniently 
retained. 
1. Problechilus consocius, sp. n. 
Ovalis, suboblongus, opacus, sat dense breviter pubescens, fusco-niger, prothoracis margine apicali et limbo 
basali obscure ferrugineis, pedibus piceis; prothorace semigloboso asperato, disco posterius distincte 
elevato, ad basin granulato-punctato; elytris punctato-striatis, interstitiis planiusculis, alternis setis 
tenuibus seriatis, 2° in declivitate vix angustato nec impresso. 
Long. 2°6 millim. 
Intermediate between P. zonatus, Hichh., and P. reitteri, Eichh. Oval, somewhat oblong, dull, with very 
short dense velvety pubescence. Head black, distinctly subrostrate, with close subgranulate punctuation, 
front somewhat flattened, very shortly pilose, with an arcuate impression at the base of the rostrum, 
anterior to asubelevated and slightly shining transverse line, the sides subcallose along the inner angles of 
the eyes; mouth with short fringe, the mandibles rather prominent ; eyes oblong, narrow, entire; antennz 
inserted under the elevated margin of the rostrum, testaceous-brown, the club infuscate, ovate. Prothorax 
subhemispherical, transverse, the sides and apex conjointly rounded, the hind angles somewhat truncate, 
the basal margin subtransverse and impressed on either side, the side margins bordered; disc ample, 
elevated and subnodose towards the base, fuscous-black, with the middle of the apex and a basal vitta 
obscure ferruginous, asperate and very slightly shining before the elevation, the asperities tending to 
form transverse lines, the base closely and finely granulate-punctate. Scutellum very small, rounded 
and granulate. Elytra ovate, at their widest point a little broader than the prothorax, and two-thirds 
longer, subtransverse at base, the humeral angles rounded, callose, the sides subampliated towards the 
ZZ 2 
