186 



I'intir segmentis sex compositus, 1 map;no, longo ; 2-4 brevissimis ; 5 et 6 quarto 



plus quam duplo longioribus, ipsis paribus, apicali integro. 

 Pedes (intici coxis maguis, elongato-ovalibus; trochanteribus minutis, trigonalibus ; 

 femoribus modicis ; tibiis elongatis, incurvatis, at(iue ad apicem obtuse 

 uucinnatis ; tarsis 4-articulati8, 1 et 2 fere paribus, subtus longe bifidis ; 3 

 minute ; 4 gracili, eloiigato ; uuguibus leviter curvatis, deuticulo obtuso ad 

 basira armatis. 

 inteniiedii anticis longiores, coxis rotundatis, tibiis modicis, simplicibus, alioqui 



anticis similes. 

 postici intermediis consimiles, sed coxis magnis ovatia. 

 Coxte antcrmres non contingeutes. 

 iiitermcdite sat distantes. 

 posteriores reraotffi. 



Body broadly ovate, generally slightly attenuated posteriorly, very convex, generally 

 smooth and shining. 



Head small, entirely covered by the thorax ; eyes large and prominent ; mouth 

 deflexed and gular region convex. 



AntenncB (PI. IV., D, fig. 7) geniculate, often long, nine-jointed; 1 very large, 

 recurved ; 2 large, but shorter and more slender than the first ; 3 and 4 shorter 

 and much more slender ; 5 large and often much incrassated ; 6 very small, 

 smallur than any of the others; 7-9 large and very much incrassated, forming 

 a suhfuliate club. 



Maxillary palpi (PI. IV., D, fig. 5, w) rather short, very robust, four-jointed, 1 

 rather small ; 2 very large and turgidly incrassate, subpj'riform, broadly 

 excavated on the inner side of the apex, and much produced and rounded on 

 the outer side, furnished at the apex itself with eight long, slender, laminated 

 processes, resembling the rays of a fan, each of which is gradually widened 

 from its base, flat at the extremity, and translucid ; 3 very short, and very 

 broad ; 4 large and broad, much rounded on the outer side, and slightly 

 concave on the inner side, with the apex rather obtuse. 



Labial palpi (PI. IV., 1), fig. 0, m) very short and very broad, three-jointed, 1 very 

 small ; 2 short and verj- broad, subcyathiform ; 3 transverse, very obtuse, 

 much longer than the preceding, furnished with a row of short setiB near the 

 apex. 



Labritm (PI. IV., D, fig. 3) moderate, entire, ovally rounded in front, and furnished 

 with short setre on its surface. 



Maiidiblex (PI. IV., D, fig. 4) long and slender, much hooked and very acute at the 

 point, armed on the whole of the inner edge with long, curved, and vei-y 

 slender teeth. 



Ma.rill<e (PI. IV., D, fig. 5) unilobed, with the lobe short and broad, terminated with 

 very long, incurved setfe. Stipes small, produced on the outer side. 



Mentum (PI. IV., D, fig. 6, j) rather large, nearly straight at the sides, and tri- 

 angularly produced in front; submentum divaricated at the base, with the 

 extremities divergent and strongly recurved. 



Labium (PI. IV., ]), fig. G, k) of the same shape as the mentum, but rather longer, 

 furnished with short setffi at the apex. 



Lingua (PI. IV., I), fig. 0, 1) very large and very broad, fan-shaped, exceeding the 

 palpi in length. 



Pronotum large, generally circularly rounded in front, with the anterior margin 

 entire, and hinder angles acute and generally elongate. 



Scutelluiii small, either subtriangular or rounded. 



Elytra entire, generally slightly attenuated posteriorly. 



Abdomen composed of seven segments, of which the three apical are corneous, and 

 the four basul (•(niiicenus. 



