190 NOVITATES ZOOLOGICAE XXIII. 1916. 



fringe paler. Hindwing black, in the middle with metallic blue reflections ; 



fringe as on forewing. 



Underside brown-black, shot with rather strong metallic blue reflections which 

 are only wanting at the termen and on the (somewhat darkened) veins ; hindwing 

 with a small red spot at base. 



Jimenez, W. Colombia, 1600 ft., March 1907, wet season. Type in coll. 

 L. B. Pront. 



Distinguished from those aberrations of caelisigna in which the red discal spot 

 is wanting by its rather larger size, bluer hindwing and underside, and especially by 

 the antennal structure, which agrees with that of Siosta bifasciata Latr. and shows 

 that that genus must not be maintained on the antenna (cf. Warren, Nov. Zool. ii. 

 124, 125) but on the less slender build, longer palpus, etc. The palpus of cyaneres 

 possibly has the second joint somewhat rougher-scaled than in caelisigna, the third 

 joint more concealed, but there is certainly essential agreement. 



82. Sangalopsis thisbe sp. nov. 



S, 30 mm. Similar to ilione Th.-Mieg. {Le Nat. xv. 161), differing as 

 follows : 



Smaller (Thierry-Mieg's measurements are taken from tip to tip in set 

 specimens and do not show the real expanse) ; abdomen without pale lateral 



line. Forewing without bluish reflections, the white patch much narrower 



(l - 5 mm.), but continued in a small spot behind M 2 . Hindwing not precisely 



the same shape, being a little less full in the region of the tornus. Underside 



uniformly blackish, excepting the white patch of the forewing. 



Uruhuasi, S. Peru, 7000 ft., April— May 1910 (H. and C. Watkins). Type in 

 coll. L. B. Pront. A second example dated March — April. 



