582' . ' Descriptive Catalogue [1896. 



EULEPTUS FALLAX. 



Pic6ous black, shining, iridescent on the upper part ; antennae 

 slender, pubescent, slightly rufescent, likewise the palpi and legs; 

 head smooth ; prothorax a little ampliate at about the median part, 

 gradually narrowed laterally in front and behind, and sinuate above 

 the base, which is as broad as the apex ; disk smooth, with a narrow 

 median longitudinal groove, the lateral basal depressions shallow, 

 but very distinct ; elytra oblongo-ovate, hardly convex, very slightly 

 ampliate past the middle, striate, with the intervals plane, smooth 

 with the exception of the first three bordering the suture, which are 

 irregularly and faintly punctured; this may be, however, only acci- 

 dental. Length 9 mm. ; width 4 mm. 



Hah. Cape Colony (Grahamstown). 



Gen. ATEOTUS. 



Mentum very broadly notched, the median part straight, lateral 

 lobes nearly perpendicular inwardly and very sharp ; ligula broad, 

 horny, truncate, with a seta at each angle, broadly bordered in front 

 by the paraglossse which are not quite so broad as the ligula and 

 project laterally a little beyond the membranaceous border ; last 

 joint of palpi fusiform and very sharp at tip ; maxillae hooked at 

 tip, ciliate and with eight sharp, curved spines, apical part of the 

 outer lobe swollen;, mandibles straight, moderately long, scooped 

 internally at tip, the apical part of which is curved and short ; 

 labrum very long, triangularly incised nearly from apex to base so 

 as to look almost lobate ; eyes moderately prominent ; head not 

 narrowed behind the eyes ; antennae long, slender, the three basal 

 joints glabrous, the basal one nearly as long as the two following; 

 prothorax transverse, with the outer sides nearly straight but slightly 

 narrower at base than at apex, posterior angle a little slanting, base 

 and apex truncate ; elytra oblong, slightly sinuate behind, hardly 

 convex, striate ; legs moderately long, slender, the three basal joints 

 of the intermediate and posterior tarsi grooved. 



I have seen one specimen only of this very singular insect, and 

 the supra-orbital setae as well as the lateral ones on the prothorax 

 are obliterated. The shape of the apical part of the mandibles, 

 deeply grooved inwardly with the tip and posterior angle of the 

 excavation forming two little hooks is as singular as that of Hiletus, 

 while the labrum is as deeply and broadly incised as in Pcriphohiis 

 of the group CymindidcB. In spite of these characteristics as well 

 as of the ligula being broadly edged at tip by a membranaceous 

 process similar to that of some South African Callida and to 

 Graphipterus, the nearest affinities of the genus is with the 

 Anchomenides. The example I have examined is a female. 



