BY EUSTACE W. FERGUSON. 545 



median area depressed, emargination moderately deep. Man- 

 dibles strong, external angles each produced into a short horn, 

 horns subparallel, outer opaque portion of mandibles densely 

 clothed with long black sette. Protborax(6'5 x 7*5 mm.) slightly 

 transverse, sides rounded, widest a little in front of middle, 

 apical median lobe hardly produced, collar-constriction well 

 marked, base truncate; disc feebly convex with a rounded some- 

 what irregular central depression, median line traceable in its 

 entirety; granulate, granules fine, distinct only at sides behind 

 and in front, elsewhere on disc the granules are completely 

 abraded, leaving a smooth tessellated surface. Elytra(17'5 x 

 10'5 mm.) oblong-ovate, convex, strongly declivous, much wider 

 than prothorax; sides greatly widened from base to beyond 

 middle, thence subparallel to apex which is abruptly rounded, 

 with a wide corrugated flange, and mucronate; base truncate, 

 humeral angles not produced; disc foveo-striate, fovete deep, 

 regular, separated by transverse setigerous ridges, interstices 

 prominent, forming seven distinct costge, first thickened at base 

 and outturned to join the third, less prominent posteriorly; 

 second, third, and fifth most prominent, fourth ending in front 

 of declivity, sixth and seventh not so prominent; costae with only 

 a few scattered setigerous punctures; sides rugosely corrugate, 

 with an ill-defined central ridge. Metasternum widely and 

 somewhat shallowly concave. Fifth ventral segment deeply 

 excavate, excavation extending to anterior margin, preanal fossa 

 deep, separated from rest of excavation by a well marked inter- 

 mediate ridge continuous across middle line; posterior edge 

 fringed at sides with black hair; abdominal fascicles broad, 

 widely separated(3 mm.), situated within excavation. Forceps 

 strong, moderately long, gently curved inwards; laminae situated 

 near base, rounded, not meeting, fringed with short black hair 

 along outer side of attachment to forceps. Legs moderately 

 long, tibise clothed with black sette, stouter along the under 

 side. 



$. Of a much smaller, more rotundate-oval form. Mandibles 

 simple, rounded in front,- rugulose, and with short black set^j 



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Ul S R A R Yias 



