AUORETUS. 299 



30 (27) Pronotum very short areatus, Oh., p. 312. 



31 (22) Apical calli not tufted Urmanus, Arr., p. 313. 



32 (21) Elytra without denser aggregations of 



setae. 



33 (50) Outer edge of the front tibia serrated 



in its basal part. 



34 (45) Two upper teeth of the front tibia not 



divided by an acute notch. 



35 (38) Elytra without prominent tufted apical 



calli. 



36 (37) Clypeus small lacustris, sp. n., p. 314. 



37 (36) Clypeus large flams, sp. n., p. 315. 



38 (35) Apical calli of elytra prominent and 



tufted. 



39 (40) Clypeus very broad boops, Wied., p. 316. 



40 (39) Clypeus not very broad. 



41 (42) Upper surface clothed with close-lying [p. 316. 



setae fraterculus, sp. n., 



42 (41) Upper surface rather thinly clothed 



with minute scales. 



43 (44) Large species ; without prominent 



costae upon the elytra yemmifer, sp. n., p. 3] 7. 



44 (43) Small species ; with prominent elytral 



costse costopilosus, Oh., p. 318. 



45 (34) Two upper teeth of the front tibia 



divided by sin acute notch. 



46 (47) Clothing of the upper surface not very 



sparse serratipts, Arr., p. 319. 



47 (46) Clothing of the upper surface very 



sparse. 



48 (49) Longer claw of the front and middle 



feet cleft testaceus, Hope, p. 320. 



49 (48) All the claws simple nasalis, sp. n., p. 320. 



50 (33) Outer edge of the front tibia not ser- 



rated in its basal part. 



61 (58) Two upper teeth of the front tibia 

 divided by an acute notch. 



52 (53) Jtody very elongate and depressed . . lemniscus, Arr., p. 321. 



53 (52) Body short and stout. 



54 (55) Ventral segments tuberculate in the 



middle , celogaster, Arr., p. 322. 



55 (54) Ventral segments not tuberculate. 



56 (57) Punctures of pronotum fine, setae 



minute corpulenttis,Arr.,Tp.323. 



57 (56) Punctures of pronotum larger, setse 



longer tener, Arr., p. 323. 



58 (51) Two upper teeth of the front tibia not 



divided by an acute notch. 



59 (84) Abdomen with a continuous carina 



coinciding with the outer margins 

 of the elytra. 



60 (71) Elytra with wide opaque epipleurse. 



61 (64) Pronotum shining, rather coarsely and 



not densely punctured. 



62 (63) Front angles of the pronotum not 



produced 



63 (62) Front angles of the pronotum acutely fp. 325. 



reduced renardi, Brens., p. 324. 



ant angles of the pronotum acutely [p 



produced epipleuralis, Arr.. 



