352 MANDIBULATA. — COLEOPTERA. 



Genus CCLXIII. — Dinoderus* rnihi. 



Antenna* inserted in front close to the eyes: the basal joint short, robust; the 

 second subglobose; the five following minute, nodose, subcoarctate ; the 

 remainder forming an elongate perfoliated club, of which the two basal 

 joints are conic-trigonate, slightly produced within, and the terminal one sub- 

 globose, compressed. Palpi short, terminal joint minute, conic: mandibles 

 exserted, acute : head short, transverse, with the neck thick : eyes globose : 

 thorax short, rounded, very gibbous, and rugose in front : elytra retuse poste- 

 riorly : body elongate, cylindric : tibiae compressed, denticulated externally ; 

 tarsi short, simple. 



Compared with tiie insects of the foregoing genera, the insects 

 included in this are pygmies, but they agree in having the three 

 terminal joints of the antennae distinct, the thorax muricated, &c. ; 

 as they not only differ in the relative proportions of the respective 

 articulations of the antennse, but in the structure of the palpi, their 

 exserted mandibles, compressed denticulated tarsi, &c. 



Sp. 1 . substriatus. ? Nigro-piceus, opacus, subpubescens, antennarum apice 



pedibusque rufo-piceis, elytris creberrime punctatis. (Long. corp. 1^ lin.) 

 Apate substriata. — Paykul, F. hi. 142. ? 



Pitchy-black, opaque, slightly pubescent : head rugose-punctate, with a trans- 

 verse impression between the antennae ; mouth ciliated with fulvous : thorax 

 in front very globose and thickly tuberculated, the tubercles slightly acumi- 

 nated and largest anteriorly: elytra inclining to castaneous, deeply and 

 coarsely punctate, the punctures irregularly and closely placed, but rarely dis- 



f Sp. 2. ocellaris. Nigro-piceus, subnitidus, antennis pedibusque piceis, elytris 



punctatis, punctis ocellatis in striis digestis. (Long. corp. 1^ lin.) 

 Di. ? ocellaris mihi. 



Pitchy-black, slightly glossy ; thorax tuberculate in front, punctate posteriorly : 

 elytra rather deeply punctate, the punctures disposed in striae, distinctly 

 ocellated, and largest posteriorly : antennse and legs piceous. 



I have little doubt of this insect being congenerous with the foregoing, but the 

 antennae are broken. 



Taken at " Little Chelsea in July last." — Mr. Westwood. It is probably 

 exotic, having been found in a cup of coffee. 



* Aavo;, magnus ; higy, collum. 



