324 MANDIBULATA. — COLEOPTERA. 



Genus DXXXVIL— Caupalimus, Kirhy MSS. 



Antennoe {a) gradually increasing to the apex, basal joint subclavate, stouter 

 than the following, the second and third subclavate, five following turbinate- 

 obconic, two next larger, also turbinate, the last short, subcordate, acute. 

 Palpi unequal; maxillary (a) with the terminal joint rather long, clavate, 

 incrassate; labial (Z>) triarticulate ; lahruvi (c?) transverse, entire; mandibles 

 {e) acutely dentate, porrect : head exserted, triangular, surface unequal : eyes 

 rather prominent : thorax ohcordate : Z»orf?/ linear, somewhat sericeous : legs 

 moderate ; tibiae simple, ciliated, not denticulated without ; tarsi (f) triar- 

 ticulate, short, the terminal joint longest. 



The little insects of which this genus is composed may be known 

 from the other Stenidse, or rather Oxytelida?, by having the tibiae 

 (g) merely ciliated on the outside and not denticulate-pectinate, the 

 antennas straight and not geniculated ; the thorax is also obcordate, 

 and in general bears one or two large foveae on its disc ; the legs are 

 short, the body linear and clothed with a fine sericeous pubescence ; 

 — the insects reside beneath stones in damp places. 



Sp. 1. bilineatus. Plate xxvii.J'. 4>. a — g. Niger, pedib^is ferriigineis, thorace 

 obcordato bisulco. (Long. corp. ly — IJ lin.) 



Ca. bilineatus. Kirbi/ MSS.—Steph. Catal. 294. No. 3207. 



Black, slightly pubescent : head rather narrower than the thorax, subtrian- 

 gular, unequal, nearly smooth : mouth ferruginous : thorax rather longer 

 than the head, truncate and dilated in front, somewhat rounded behind, 

 rather smooth, impressed with two slightly curved, approximating, longitu- 

 dinal /bve^ : elytra pitchy-black, very minutely punctured and slightly 

 shinhig : abdomen rather glossy, with the apex of the last segment pitchy 

 beneath: legs ferruginous : antennae about as long as the thorax, pitchy, 

 with the base ferruginous. 



The sulci on the thorax are sometimes faintly interrupted, giving the appear- 

 ance of four large punctures. 



Not uncommon within the metropolitan district in the spring. 

 " Found beneath stones in damp places, rather common." — 

 Kirhy MSS. 



Sp. 2. arcuatus. Ater, pubescens, thorace postice foveola arcuata impresso. 

 (Long. corp. \\ lin.) 



Ca. arcuatus. Kirby MSS.—Steph. Catal. 294. No. 3208. 



Black, rather shming and smooth, pubescent : head narrower than the thorax, 

 triangular, with an impression on each side in front: thorax scarcely longer 



