neio Neotropical Geometridse. 239 



and inner margin ; spots beyond cell as in fore wing, but 

 shorter; a very small yellow spot below the distal end of 

 these between R 3 and M 1 . Underside similar, on the hind 

 wing with the yellow markings slightly more extended and 

 costal margin (to vein C) yellow from close to base almost 

 to the central blotch. 



El Congo, Colombia, July 1907; one $ . 



Clearly related to Xenopepla (nom. indescr.) flavinigra, 

 Warr. Nov. Zool. xiv. p. 210, but apart from the fact that 

 the yellow markings are somewhat lighter (less golden- 

 yellow) on both surfaces and the arrangement of the pattern 

 not quite the same there are several slight structural differ- 

 ences ; in flavinigra SC 1 of fore wing does not anastomose 

 with C, though briefly approximated, R 1 is stalked (though 

 very shortly) with SC 2 " 5 , M 1 just separate from R 3 , M 1 of 

 hind wing connate with R 3 , not stalked ; in flavinigra, too, 

 the margins of the wings are slightly crenulate — those of the 

 fringe more strongly so, but as the fringes are lost in 

 bicuneata no comparison is here possible. 



Subfam. Acibaliinje. 



Tribe CyllopodicjE. 



Cyllopoda isthmica, sp. n. 



J 1 . 38 mm. — Face black, narrowly white laterally. Head 

 and thorax black ; abdomen fuscous above, whitish below, 

 narrowly marked with yellow laterally; base of tegulse 

 laterally yellow. Fore wing golden-yellow ; this ground- 

 colour forms two large blotches, one semi-elliptical on inner 

 margin from close to base to shortly before anal angle, 

 touching median vein above, the other broadly oval with the 

 two sides flattened and parallel, reaching from SC 2 to sub- 

 median fold ; costal and distal margins black ; the bar 

 between the yellow blotches very narrow; fringe black, 

 finely white at apex. Hind wing yellow, with a narrow black 

 border ending in a point on costa before apex and at tornus. 

 Underside similar, but with a fine white dash at apex of 

 fore wing before the white fringe. 



Peru; one <$ (type) received from Staudinger. 



Belongs to the group of cyrene, Druce, Proc. Zool. Soc. 

 1885, p. 529, the areole being double, the antenna (J 1 ) with 

 fascicles of cilia. Mr. Warren calls some of this section 

 Atyriodes, but the species which he made the type of 



