NO. 9 GENUS CHLAENOBIA BLANCHARD CHAPIN IQ 



punctures about as coarse and as densely placed as on disk of pro- 

 notum, epipleura very narrow. Metasternum moderately coarsely 

 and rather evenly punctured, median portion set with rather long 

 erect hairs. 



Male. — Second to fourth sternites each with a dense median patch 

 of short erect hairs, fifth sternite with surface generally uneven but 

 without asperities or hair patch at middle. Sixth sternite with median 

 area slightly depressed, its posterior margin not noticeably sinuate. 

 Pygidium strongly convex in its upper (basal) half, which is coarsely 

 and densely punctured, the lower half is more flattened, coarsely 

 wrinkled and convoluted, apical margin sharply and narrowly reflexed. 

 Anterior tibia feebly tridentate, the upper tooth at some distance from 

 the middle tooth. Second segment of anterior tarsus narrow with 

 parallel sides, about four times as long as broad. Aedeagus, figure ii. 



Female. — Unknown to the writer. 



Length. — 12 mm. 



Type locality. — Juquila, Mexico. 



Type. — In the British Museum. 



Material examined. — A male, probably a paratype, from the type 

 locality, loaned for study by the British Museum. Unfortunately, 

 both of the antennal clubs are missing. 



CHLAENOBIA TUMULOSA Bates 



Chlacnobia iiiiiuilosa Bates, 1888, Biol. Centr.-Amer., Coleopt., vol. 2, pt. 2, 

 p. 168. 



Head rather densely and moderately coarsely punctured except 

 for a small area on vertex which is free of punctures. Clypeofrontal 

 suture moderately sharply impressed and not strongly sinuate. Clypeus 

 evenly, densely, and moderately coarsely punctured, slightly convex 

 at middle, and with outer third gradually reflexed, anterior margin 

 moderately strongly indented at middle. Antenna ten-segmented. 

 Pronotum transverse, broadest across middle, side margins broadly 

 rounded, lateral marginal carina rather strongly sinuate near posterior 

 angle as viewed from side, viewed from above anterior and posterior 

 angles subacute, the latter slightly produced ; punctures as coarse but 

 less dense than those on frons, irregularly distributed. Elytra with 

 sutural margins tumid, discal costae faintly indicated ; punctures 

 about as dense and coarse as those on pronotum ; epipleura very 

 narrow. IMetasternum very finely and densely punctured at middle, 

 more coarsely and sparsely at sides, vestiture fine and dense at middle. 



Male. — Antennal club one-fifth longer than second to seventh seg- 

 ments combined. Second to fourth abdominal sternites each with a 



