224 SEKEICOENIA. 



2. Diacerus grisescens. 



Diacerus grisescens, de Bonv. Mon. p. 191, t. 8. fig. 2 l . 



Hob. Mexico, Toxpam, Cordova {Salle 1 ), Chilpancingo in Guerrero (H. H. Smith); 

 Guatemala, Sabo and Panima in Vera Paz, Capetillo (Champion); Panama, Volcan de 

 Chiriqui (Champion). 



The antennas are shorter than half the body, stouter than in J), antennatus, and not 

 serrate. L. grisescens is without any doubt the female of the preceding species, though 

 here numbered as distinct. 



PELENOBOLUS. 



Form cylindrical, convex, scarcely narrower behind ; antennae a little longer ( 6 ) or shorter ( $ ) than half the 

 body, first joint as long as the next three, not stout nor carinate in front, second joint small, third nearly 

 half as long as the first, joints four to ten equal in length, longer than wide ( tf ) or nearly square ( $ ), 

 eleventh longer ; clypeus sinuate each side of the apex, slightly notched at the middle, base rather broad, 

 but a little narrower than the distance to the eye ; interocular carina entire, feebly elevated on the base of 

 the clypeus ; antenna! grooves very deep, continued on the head and not narrowed by the eye, broader in 

 front than behind, more than half as wide as the triangle of the propleurae, this longer than wide at the 

 base, the apex not attaining the front edge of the prosternum; posterior coxal plates not twice as wide at 

 the widest part as at the outer end ; tibiae slightly broader at the apex, especially the anterior pair ; first 

 joint of the hind tarsus not so long as the following joints together, the fourth joint distinctly excavate- 

 emarginate ; claws slightly broadened, but not toothed at the base. 



The species for which this new name has been suggested responds so closely to the 

 characters given for Anabolus that there seems to be no essential difference, except that 

 of the penultimate tarsal joint. It is probable, however, that other characters will be 

 found on comparison. 



l. Phsenobolus bicolor. (Tab. X. fig. 13.) 



Cylindrical, convex, scarcely narrowed posteriorly, piceous-black, subopaque, thorax orange-red and faintly 

 pubescent ; antennas piceous : head piceous, shining, coarsely, not closely ptmctate, a slight concavity near 

 the base of the clypeus, this roughly punctate ; thorax distinctly longer than wide, sides straight and 

 parallel, feebly arcuately narrowed at the apical third, disc regularly convex, a moderately deep oval 

 depression each side of the middle at the base, lateral margin distinctly double near the front angle, 

 surface densely granulately punctate ; elytra with parallel sides, arcuately narrowed at the apical third, 

 distinctly striate, striae entire, intervals punctate-scabrous, subgranular at the base ; beneath piceous, 

 shining, abdomen closely punctate, finely pubescent ; legs piceous, tarsi ferruginous. 



Length 4-7 millim. 



Tlab. Nicakagua, Chontales (Belt) ; Panama, Bugaba, San Lorenzo (Champion). 



In form this insect is not unlike some Mierorhagi from the same region, but its 

 generic characters are so well marked as to make it easily recognized. 



EUEACHIS. 



Oblong, parallel, moderately convex ; eyes moderate, not narrowing the antennal groove on the head ; antennae 

 as long as half the body, much flattened, broader externally, first joint nearly as long as the next three, 

 eecond small, third longer than the fourth, joints 4-10 nearly equal in length, 3-10 rather strongly but not 



