182 Coleopterological Notices. 



that behind them convex at the sides, the convexities being separated by two 

 divergent, impressed grooves. 



Metathorux longer than wide, nearly cylindrical. Legs slightly behind the 

 middle. Surface nearly as in the mesothorax. 



Abdominal segments longer than wide, subcyliudrical behind, more conical 

 near the middle. Each segment having on the flanks a fine, impressed, very 

 obliquely descending groove beginning before the middle; lines of juncture 

 of the dorsal and ventral surfaces far inferior, straight, divergent from apex 

 to base, strongly impressed. 



Anal seyment longer than wide, pointed, ogival, convex above, herissate with 

 coarse, erect, fulvous setse more sparse dorsally, with a few dorsal spines and 

 a row of erect spines parallel to and very near the edge extending from base 

 to apex. Lower surface with two large tumid processes covered with short 

 erect spines, arranged transversely near the middle and just before the anal 

 orifice ; the latter closed by a small complicated fold which is not prominent ; 

 surface thence to the apex on a superior plane, smooth. 



Length 18.0 mm. ; diameter 1.1 mm. 



CCELOMORPHA u. gen. (Coniontini). 



Body oval, convex, sparsely and minutely setose above, ciliate at the sides. 

 Head inserted in the prothorax to the middle of the eyes, short, broad ; clypeus 

 rounded at the sides, broadly sinuate anteriorly ; mentum moderate, obtrape- 

 zoidal ; maxillae broadly exposed at the sides ; maxillary palpi well developed, 

 third joint small, obconical, one-half as long as the second, fourth as long as 

 the preceding two together, elongate, moderately dilated, cylindro-ovoidal, 

 obliquely truncate within at apex ; labial palpi small, third joint feebly 

 dilated, cylindro-ovoidal, acuminate at apex ; antennae very short, incrassate, 

 10-joiuted, first joint short, inserted in front of the coarsely granulated eyes 

 and under the overlianging sides of the clypeus. Legs rather slender, spinu- 

 lose ; posterior tarsi slender, basal joint elongate ; anterior tarsi scarcely as 

 long as the tibiae, first joint large, produced beneath the second and third 

 joints ; tibiae not sensibly produced exteriorly at apex, terminating in two 

 short spurs and several small spinules. Epipleurae broad, rapidly diminishing 

 in width toward the elytral apices which they attain. Scutellum minute, 

 triangular. 



This genus is well distinguished from Coelus by its 10-jointed 

 antennae and broad epipleurae, also by the form of the prothorax. 



The labrum is strongly retractile, and in three of the four speci- 

 mens examined is completely invisible, the mandibles being fully 

 exposed from above ; the organ is indeed so. fully retracted that 

 merely the apex can be seen, even by looking far under the clypeus, 

 which is separated from the mandibles by considerable intervening 

 space. The fourth specimen is paler in color, and has the labrum 

 protruded, showing this to be rather large and as usual broadly 



