new Neotropical Geonietridas. 521 



stronp^ly marked ser'iaria forms; while tlic rest of the spots, 

 Mliicli equal the iiuier-iuarginal one in size in seriaria, arc 

 obsolete or extremely faint. I should have supposed usli- 

 macula to ije a speeies, hut that I have oue sj)eeimen from 

 Peru with the s|)ot weak, and one with it absent {l. e. ap- 

 proaching typical yladiaria), while, on the other hand, one 

 seriaria from Sapucay, Parai^uay, apparently taken among 

 other i/ladiaria forms, is certainly referable to ustimacula, 

 and another is intermediate towards seriaria, liaving the 

 larg^e spot of ustimacula with additional small spots on the line. 

 I therefore consider that we liave here an example of the 

 *' var.-" of one locality (in Staudingcr's terminology) tending 

 to become the " ab.'^ of another. 



Anisojjcras pectinata, sp. n. 



c? . 3G-38 mm. — Head, thorax, and abdomen concolorous 

 with wings. Fore wing grey-brown, densely striated with 

 fuscous ; costH, especially towards the a;, ex, paler ; inner 

 and outer lines fuscous, conversely edged with leaden grey ; 

 the inner bent on SC, then vertical ; the outer bisinuate, 

 outwardly dentate on veins, with a small white spot beyond 

 it below SC ; a cloudy black cell-spot; the inner third of 

 central fascia and a sinu )us band of the same width bevond 

 it paler, greyer ; subtermiual line dentate, indistinct, finelv 

 marked with grey scales. Hind wing without inner line'; 

 outer and suljterminal lines more plainly dentate, the teeth 

 more conspicuously followed by i>ale dashes on tlie veins ; 

 a pale grey band between the lines. Underside paler, with 

 outer and subterminal lines marked. 



El Congo, Colombia, June 1907 (type) ; Tornc, Colombia, 

 July to August 1907 ; three J (^ . 



The insect is almost an exact replica of A. atropunctaria 

 (Walk.)"*^, except that the antenna of the ,^ is bipectinate ; 

 slightly more ereuulate wing-margins and more dentate 

 outer line of hind wing may perhaps also be taken as dis- 

 tinctive. Tetrayonodes rufata, Dogn. Ann. Soc. Ent. Belg. 

 xliv. p. 231, is ])robably a related species, but M. Dognin, to 

 whom I have shown my pectinata, says it has different colour 

 and scaling, the postmedian line of the hind wing more in 

 the middle, &:c. Anisopcrasjodea, Druce, Biol. Centr.-Amer., 

 Lep. Ilet. ii. p. 532, t. 98. f. 17, is another pectinated 

 species of the genus. 



Dasi/sfole colopholeuca, sp. n. 

 cJ . 10 mm. — Head, thorax, and abdomen coflec-brown, 

 * Azelina atropunctaria. Walk. List Lep. Ins. xxvi. p. 1.517. 

 Ann. cO Ma<j. N. Hist. Ser. 8. Vol, vi. 35 



