BV THOilAS G. SLOAN E. 381 



Labium concave, longitudinally striate in middle ; anterior 

 margin emarginate, widely rounded at each side, sexsetose (tiie 

 two middle se tee very close together, rising from small punctures). 

 Prothorax longer than broad (6 '^ x 58 mm.), convex, truncate at 

 base and apex; m wide basal area sharply constricted on each 

 side and depressed below plane of disc; sides subparallel (a little 

 rounded in middle), shortly, roundly and decidedly narrowed to 

 apex, sharply narrowed posteriorly and meeting base at right 

 angles; lateral border narrow, extending from anterior to basal 

 angles; base not bordered or u[)turned; a deep wide marginal 

 sulcus along each side, extending from a little behind anterior 

 angle nearly to beginning of basal constriction; lower side of 

 marginal sulcus defined b}^ lateral border of prothorax, upper 

 side convex, arcuate; a lightly impressed wide curved impression, 

 (withafovea in middle), a littleahove mai'ginal sulcus, and extend- 

 ing from basal area to anterior angle; median line strongly 

 impiessed. Elytra wide(ll x 7'7 mm.), convex, declivous to 

 peduncle, subparallel on sides, widely rounded on base, gently 

 but decidedly inflated on each side of peduncle; humeral angles 

 not marked; apical declivity roughly granulate; four rows of 

 punctate fovese on each elytron, (first row narrow, second row 

 consisting of three or four wide punctate depre.ssions a consider- 

 able distance from base, third row consisting of three or four 

 wider and more elongate depressions,"fourth row more irregular); 

 about five widely placed umbilicate setigerous punctures placed 

 in wide depressions near lateral margins, in front of apical granu- 

 late part; lateral border narrow. Ventral segments 3-5 with a 

 narrow coriaceous border along posterior margin, bipunctate on 

 each side of middle. Posterior trochanters short, thick, reniform, 

 plurisetose on posterior margin; femora thick, swollen in middle, 

 posterior with an arcuate double row of setigerous punctures 

 from near base to apex; anterior tibiae with a long w^ide laminate 

 external spur at apex, external edge strongly 3-dentate above 

 apex, upper tooth triangular; shorter than others; intermediate 

 tibise short, stout, incrassate with a strong external spur at apex; 

 posterior tibia) much longer than femora, slightly incrassate at 

 apex. Length 20, breadth 7'7 mm. 



