BATRISINI 251 



from a dorsal view) composed of 32 enormous facets, each 0.02 mm. in 

 diameter, which are high and conical. The head outline reminds one of a 

 large-eyed Fustiger. The long cervicum is in shai-p contrast to the cribrate 

 head and pronotum as it is subglabrous, evenly arcuate and has a strong 

 median, longitudinal carina. Occiput abruptly higher than cervicum and 

 medianly slightly notched. Vertex with a pair of foveae on a line through 

 posterior third of eyes, these vertexal foveae absolutely free, circular, nude, 

 and as wide as an ocular facet but difficult to discern because of the cribrated 

 integument. Anterior sixth of vertex medianly, longitudinally sulcate, the sul- 

 coid area apically incising the inter-antennal line broadly. Front and clypeus 

 narrow, directed obliquely ventrad so that the labrum is beneath the antennal 

 tubercles. These latter flattened, rounded in outline and being merely the areas 

 of antennal articulation. Ventral surface of head tumid medianly and strongly 

 depressed and narrowed each side of base. 



Maxillary palpi four-segmented; first segment small, of same diameter 

 as base of second, obconical; second elongated arcuate-conical as usual with 

 inflated apical end; third subtriangular, wider than second, less than half as 

 long as second, with a short subtruncate internal face and a long convex ex- 

 ternal face, nearly as wide as long; fourth longer than preceding two pal- 

 pomeres but relatively shorter than in Oxarthrius, one-third wider than third, 

 obliquely truncate base and an acute apex bearing apically an excessively 

 minute, truncated palpal cone. 



Antennae eleven-segmented, distant; segment I arcuate-cylindrical from 

 a dorsal view, as wide as tenth; II-VIII subequal in width, all longer than, 

 wide, obconical to cylindrical (this character separates barberi from all other 

 known species of the genus of both sexes) ; IX slightly wider than eighth, 

 subcylindrical in dorsal outline; X distinctly shorter than ninth, subtrapezoidal ; 

 XI large, as long as preceding three segments united and much wider. Club 

 formed chiefly of this distal segment. Ventrally the eighth and ninths segments 

 are abnormal, having their ventral faces produced strongly; the ventral face 

 of the eleventh segment is very abnormal : longitudinally biconcave or bifossate 

 with the two excavations separated medianly by an oblique, transverse ele- 

 vation, the basal excavation shallow, devoid of coarse antennal setae, the 

 apical excavation asymmetrically deepened into a pyramidal fovea. 



Pronotum cribrate as described, with no other markings save an elongate- 

 triangular lateral fovea each side just behind the middle, the apex of the tri- 

 angle sulcoid; pronotum longer than wide, sides parallel in basal half and 

 slightly convergent in apical half. 



Elytra complex; each elytron elongate, with (1) a subhumeral fovea at 

 apical end of a long, strong, subepipleural carina on elytral flank; (2) humerus 

 tumid, with apex transversely carinated above the subhumeral fovea, this 

 carina turning abruptly apically as a long entire carina on the edge of elytral 

 disc (this gives to the humeral angle the carinated callus aspect of Group I 

 Euphalepsus) ; (3) base with four deep circular nude foveae, the integument 

 arched over the orifices of the foveae; (4) a long entire discal carina arising 



