382 Descriptive Catalogue [1896. 



Gen. HAPLOTEACHELUS, Chaud., 

 Bull. Mosc, 1855, i., p. 15. 



Mentum excavated, the inner lobes nearly straight, rounded out- 

 wardly at the tip, the outer ones a little inflated in the median part, 

 in the middle a broadly triangular tooth, sharp at the apex, carinate 

 in the median and outer parts ; maxillae straight, much rounded at 

 the tip ; ligula deeply concave, and with a sub-bifid median tooth in 

 the centre considerably less high than the outer angles ; labrum 

 plane, trilobate, with three deep setigerous punctures ; antennae, 

 palpi, and mandibles of Scarites ; head quadrate, bi-impressed in the 

 anterior part ; prothorax transverse, generally rounded from the 

 basal angle, which is seldom acute, towards the base, the median 

 part of which is hardly produced behind ; elytra fused, elongato- 

 ovate, convex, no wings ; legs strong, anterior tibiae with three strong 

 external teeth, intermediate with one only, posterior ones without 

 any teeth, the three penultimate abdominal segments with two 

 median punctures, the last one with four. 



Synopsis of Species. 



I. 



Humeral angle of the elytra dentate. 



Basal median part of prothorax slightly produced behind ; 

 elytra very faintly striate pasimachoides. 



Elytra short, carinate from the base to past the median part ^polypleurus. 



Elytra long, the carinse reaching from the base to two-thirds 

 of the length latesulcatus. 



Elytra striate, intervals convex, of equal width except near 

 the suture holcopleurus. 



Fifth and seventh intervals narrow, acute, sixth broader and 

 highly raised subcrenatus. 



Intervals of elytra nearly equally raised, three punctures on 

 the third interval ; tibiae long, not dentate above the third 

 digitation ovijjennis. 



Four punctures on the third interval ; anterior tibiae triden- 

 tate above the third digitation . . . . piinctiiUger. 



Three punctures on the posterior part of third interval, and 

 one in the base of the fourth stria ; anterior tibiae bidentate 

 above the third digitation caincola. 



Humeral angle of elytra very obtuse, intervals equally con- 

 vex, two setigerous punctures behind ; tibiae bidentate beyond 

 the long outer teeth Drcgei. 



II. 



Humeral angle of the elytra not dentate. 



Prothorax with several setigerous marginal punctures ; inter- 

 vals of elytra equally convex, the eighth one very broad ; no 

 intra-marginal carina Atropis. 



