DYNASTIN/E 117 



pressed and the scattered punctures rather coarse, becoming not- 

 ably fine, sparse and feeble toward the sides, where ( 9 ) the edge is 

 only very feebly swollen at the middle, the short flattened margin 

 being there very narrow and inconspicuous; pygidium smooth, 

 almost punctureless, finely and feebly punctate laterally, the apical 

 margin with the usual fulvous fringe; ventral segments each with a 

 close-set series of setiferous punctures laterally near apical third; 

 under surface piceous, the legs black. Length (9) 20.0 mm.; 

 width 11.7 mm. Mexico (Cuernavaca, Morelos), Wickham. 



*cuernavacana n. sp. 



Median black dilatation of the sutural vitta small, sometimes wanting; 

 elytral sculpture feebler as a rule 4 



4 Elytra short, but just visibly longer than wide, the median dilatation 

 of the sutural vitta distinct, separated by a very short distance from 

 the large post-scutellar spot, glabrous. Head (cf) slightly more than 

 half as wide as the prothorax, not so large as in the preceding, 

 piceous, black basally, sculptured as in the preceding, the clypeus 

 nearly similar, the sides more evenly arcuate and slightly converging 

 from base to the obliterated angles, the medial sinus very feeble, 

 not half as wide as the base; prothorax almost exactly similar 

 throughout in form and coloration but not so short; elytra barely at 

 all wider than the prothorax, parallel, with feebly arcuate sides, 

 rapidly and very obtusely rounded at apex, the large post-scutellar 

 black region extending almost to the intra-humeral black spot, the 

 usual small discal spot behind the middle distinct; series wholly 

 unimpressed and composed of very small and widely separated! 

 punctures, the punctures of the broad second interval still more 

 minute, fine, but less sparse toward the sides; pygidium castaneous, 

 glabrous, finely punctate, with many scattered coarser punctures 

 toward the sides; under surface blackish, the legs slender as usual 

 and black; abdomen nearly as in the preceding. Length (cT ) 19.5 

 mm.; width 10.8 mm. Mexico (Guerrero) *fallaciosa n. sp. 



Elytra elongate, at least a fourth or fifth longer than wide, the medial 

 dilatation of the sutural vitta at a long distance from the scutellar 

 spot; elytra similarly glabrous 5 



5 Body smaller, elongate-oval, convex, shining; head and prothorax 

 throughout almost as in fallaciosa, the latter with the black, exter- 

 nally biemarginate vittse as in the following species and mafa/a, the 

 basal bead strong and entire; elytra nearly as in the preceding in 

 coloration and sculpture, except that the impressed line near inner 

 third is coarser and deeper and the black sutural vitta is not at all 

 expanded at the middle ( 9 ), or with a feeble tendency thereto (cf ) ; 

 surface smooth and shining, though sometimes rugose, probably 

 adventitiously; pygidium (9) smooth, almost punctureless and 

 glabrous, or (cf) with distinct sparse punctures, each bearing a short 

 stiff hair; under surface and legs piceo-rufous; metasternum at the 

 sides sparsely and very moderately punctate and with short stiff 

 sparse fulvous hairs. Length (cf 9 ) 19.0 mm.; width 9.5-10.6 mm. 

 Mexico (Guerrero) *deficiens n. sp. 



Body much larger, nearly as large as in mafaffa and almost exactly similar 



