22 PSELAPHIDZ. 
Group BRYAXINA. 
CACCOPLECTUS. 
Corpus sat elongatum, subdepressum, subparallelum, pube subtili depressa vestitum. Antenne 11-articulate, 
simplices, vix clavate, ad basin inter sese tantum modice distantes. Os subtus situm. Palpi maxillares 
minuti, articulo ultimo breviter ovali. Caput valde convexum; oculis sat magnis. Prothorax brevis, 
ante basin transversim impressus. Elytra elongata, striis suturalibus et discoidalibus geminatis impressis. 
Abdomen late marginatum. 
This genus is proposed for an insect that appears anomalous in several respects ; 
it has at first sight the aspect of the “ Euplectina,” though apparently possessing but 
little relationship with that group. I am inclined to think Caccoplectus would be 
most naturally located near Batoctenus; but, as I cannot discover any trace of a second 
claw to the tarsus, I am obliged in following Reitter’s arrangement to place it in the 
‘ Bryaxina,’ to no member of which group has it, so far as I know, any resemblance. 
Though the mouth is placed on the underside of the head (as in the ‘ Ctenistina’), yet 
the latter is quite short, and not at all rostrate, the antenne being inserted close to the 
labrum. The maxillary palpi are unusually minute, so that I can only with difficulty 
obtain a sight of the terminal joint. The hind coxe are widely separated; the two 
basal joints of the tarsi very distinct, and setose beneath. The second, third, and 
fourth ventral rings are similar to one another, and rather elongate, the basal ring 
being very short. 
1. Caccoplectus celatus. (Tab. I. fig. 11.) 
Testaceo-castaneus, elytris magis sanguineis, pube depressa flavescente vestitus ; antennis crassiusculis, articulo 
2° parvo, articulis 3°-10™ subeequalibus. 
Long. 2 millim. 
Hab. GuatemMaa, Zapote (Champion). 
Antenne stout, the second joint smaller than either of the others, joints 3-10 
differing very little from one another, the terminal joint as long as the preceding two 
together. Head very convex in the middle ; antennal tubercles flat, elongate, separated 
in front only; eyes large, coarsely faceted. Thorax with a transverse impression near 
the base and behind this, in the middle, a short longitudinal depression in front of the 
scutellum ; a longitudinal impression also on each side. Elytra elongate, narrowed, 
though not in the least raised, at the shoulders; the discoidal stria consisting of two 
very fine, rather widely separated lines, and the sutural stria also having the appearance 
of being limited on each side by a very fine line. The hind body is densely pubescent. 
The unique example found is presumed to be a male, the middle femora being 
dilated so that their base is very much wider than the trochanter and exhibits a slight 
obtuse angle. 
DECARTHRON. 
Decarthron, Brendel, Proc. Ent. Soc. Phil. vi. p. 35 (May 1866); Reitter, Verh. Ver. Brinn, xx. 
p- 189 (1882). 
This genus is peculiar to the New Werld; only a few species have been described 
