( 455 ) 



1 (? from AUianca (type) and 2 ? ? from Aroa, Venezuela. 



The specimen lignred in the Rerision (pi. ix. iig. ]:i) is a <?, not a.? as stated 

 I.e.; we had at that time 4 J c? from Brazil and 2 ? ? from Vcncznela. The sexes 

 are practically alike in colour and markings. 



48. Xylophanes cosmius obscurus subsp. nov. 



?. ]{esembles A', cosmias U. & J., Xoi\ Xool. p. 1S3. n. 12 (190(i), from 

 Sonth-East Tern. 



Uppcrsidf. The antemedian double line of the forewlng straight across 



cell, elbowed at M, not at SO as iu X. cosmi'/s and epap/ii/s ; the black median 

 patcli larger than in the two species mentioned ; tlie discal line distinctly though 

 feebly curved basad lielow centre of wing, reaching hindmargin in middle; area 

 between this line and distal margin as iu cosm/'us and epajj/ins, but the blackish 

 portion of a deeper tone ; fringe without distinct pale spot, except for a minute one 



at apex. Ilindwing as in cosmius, but the baud less groeu and the margin 



entirely black ; fringe white, with minute black dots at the veins. 



Uiulcrsiile more densely irrorated than iu the allied forms, and the marginal 

 band broader and purplish black. On the forewing the two black costal spots less 

 prominent, and the basal half of the wing more extended black. 



1 ?. This specimen was among Hoffmanus's butterflies, and we may tliere- 

 fore assume that it was not caught at tlie pools drinking. As we do not know 

 the ¥ of cosmius and have seen only two ¥ ? of epapkus, we are not yet certain 

 if obscurus is a distinct species or a geograjdiical form of cosmius. In order to 

 emphasize its close aflinity with cosmius, we treat it as a subspecies. 



49. Xylophanes chiron nechus Cram. (1777). 



X. cli. «., R. & J., Rei'isiun p. l!'J8. n. G51.(( (1903). 

 5 c?cJ, 1 ¥. 



