140 Mr. A. G. Butler on the 



196. Tmolus atrox, n. sp. 



Above smoky brown, witli a purplish tinge ; below 

 greyish-brown; primaries with a discocellular litura, and 

 an interrupted discal transverse line from subcostal nervure 

 to first median branch, black-broAvn, edged externally with 

 whitish; two submarginal grey lunules, on the median 

 interspaces; fringe brown; secondaries with a discocellular 

 litura as in primaries; a black discal line, straight and 

 oblique from costa to third median, then dentate-sinuate 

 (forming a W on the median interspaces), edged out- 

 wardly with white; margin black, edged inwardly with 

 white ; a red-bordered black spot between the tails, a trace 

 of a second on second median interspace, another at anal 

 angle, and a conical red spot in the subanal sinus of the 

 discal line ; a pale apical submarginal stripe from apex to 

 third median branch: expanse of wings 1 inch 1 line. 



Pedroso, Rio Purus, 25th September, 1876. 



On the under surface this species nearly resembles 

 T. denarius, but the coloration of the upper surface is 

 altogether too dark. It is allied to that species and to 

 T. atnius of Herrich-Schaffer; also to T. lugubris, 

 Moeschler. 



197. Tmolus clitumnus (Doubleday in litt,). (PI. III. 



fig. 6.) 



Above like T. demonassa ; below more like T. clarina 

 and T. sangala. Primaries above blue-black, inner 

 margin incurved; secondaries brilliant Morpho blue; anal 

 margin black ; body black : wings below golden brown ; 

 primaries with a straight, pale-edged, dusky line crossing 

 the wing beyond the cell ; a paler line nearer to the outer 

 margin ; secondaries with an oblique discal line ending in 

 a W-shaped marking, red-edged internally and white- 

 edged externally, enclosing two conical red spots exter- 

 nally near anal angle ; a greyish submarginal line from 

 apex to second median ; a semicircular red spot, dotted 

 with black, and edged externally with white, between the 

 tails ; anal area grey, internally white and externally black- 

 edged, enclosing two black and red spots at anal angle : 

 expanse of wings 1 inch. 



Shady woods near Prainha, 6th December, 1874. 



198. Tmolus pereza, n. sp. 



$ . Wings above like T. uzza; below differing in the 

 secondaries having only one large subcostal black spot 

 near the base ; the other basal spots being entirely ab- 



