( 356 ) 



*Jsiiiiiiiil/nis/iiiiinna Butler, I'l-or. Zim!. Sue. LuiuL p. 258. n. 50 (1875) (Brazil ;^Mus. Brit.) ; id., 



Trims. Zunl. Sue. LoiiiL ix. p. COl. ii. 5 (1877). 

 Ismjmilhusfumosus, Kirby, I.e. n. 7 (1892). 

 (?) Isognat/iiis jmlihiillii, BoDDingbausen, Jrix xii. p. 118. n. 24 (1899). 



(J?. Abdominal bands not distinct. 



"Wings, iijijicrsidc. Forewing with more white scaling than the jircceding 



species, the interrupted white vein-streaks all over the outer half of the wing ; the 

 blackish brown spot at apex of cell and that at outer side of D' not distinctly 

 separate, more or less completely merged together; basal patch thinner than in 

 li'ficlii, and cellule M' — M" less shaded with brown ; patch R' — M' separated from 

 the jiatch behind M^, but joined to the cell-patch; marginal spots at ends of veins 



larger and paler grey thau in leacki. Hindwing : marginal band not dentate, 



or only very faintly so, on tiie whole broader thau iu leachi. 



lliih. Sonth America : Surinam southward to South Brazil. 



In the Tring Museum 3 Si, \ ?? from: Leopoldina ; Rio de Janeiro; 

 C'hanchamayo, Pern. 



In the Bern Museum I'roiu I'ara, at the electric light, vii. viii. (Dr. Gcildi). 



There is in the Felder collection a specimen of this species labelled " Qreg." ; 

 it nuiy be the type. 



286. Isognathus scyron. 



Sjiliiii.i: s<-iin>ii Cramer, Fuji. E.nif. iv. p. 23. t. .301. f. E (1780) Surinam). 



Erhmijis scijruii, Hiibner, Fcj~. he!c. Sclim. p. 139. n. 1491 (1822). 



Aiiarijj- scyron, Walker, Li.'it Lep. I11.1. B. M. viii. p. 225. n. 5 (1856) (partim) ; Boisd.. Sjnr. Gen. 

 Lqi. Ilel. i. p. 121. n. 3 (1875) (?, Cayenne ; cit. Merian ad aliam spec, pertinet) ; Mo'-chl., 

 Verh. Zmil. But. (4rs. Wini xxvi. p. 34(') (187C) (Paramaribo ; = 'i jwdiUmthi). 



hiifiniithns .feyi'im, Folder, ]Vien. Kiit. Mun. vi. p. 187 (1802) ; Butl., Trims. Znol. Soe. Limd. ix. 

 p. r.02. n. 8 (1877) ; Kirby, Cut. Leji. llet. i. p. (SOS. n. 9 (1892) ; Schaus, Enl. NniK ix. p. 136 

 (1898) {= iii'ililinithi) ■ Kaye, Trans. Ent. Sue. Land. p. 138. t. 5. f. 12 ( ? ) (1901) (Trinidad). 



*Aiieirii.e pidilaulld Boisduval, I.e. p. 124. n. 6. t. 7. f. 1 (S) (1875) (Cayenne ;— coll. Charles 

 Obertbilr) ; Kirby, /.-•. n. 8 (1892). 



rseiiddsphin.r sei/roii, Burmeister, Diser. Hep. Argent, v. p. 327. n. 2 (1878) (partim). 



S ? . Abdominal bands distinct. Thorax and forewing above russel-drab- 

 brown ; underside of abdomen huffish dirty white, slightly speckled with russet 

 scales. 



Wings, nhora. Forewing in outer half with grey vein-streaks, interrupted 



by black dots which represent transverse lines ; S with black discal dash R' — M', 

 and another smaller one M' — M'-, these dashes situated in a pale russet area which 

 is not clearly defined though obvious, being most distinct between R' and R-' ; 

 S witiiouf the black dashes, but with the russet area well marked (as in t'raraer's 

 figure). 



Early stages not known. 



Hub. South America : Venezuela, Trinidad, and Para. 



In the Tring Museum 11 SS, T ? ? from: Aroa and Valencia, Venezuela; 

 Oayenue ; Rio Demerara ; Trinidad. 



In the Bern Museum from Para, at the electric light, iii. vii. (Dr. Giildi). 



287. Isognathus menechus. 



Aticeri/.r Heijron, Walker (nmi Cramer, 1780), /.'■■ viii. p. 225. n. 5 (1856) (partim ; Villa Nova). 

 (?) Spliiiix niHeehus Me'nutriu^, Eniini. Ciir/i. Aiiim. .Miis. I'etr., Lrp. ii. p. 90. n. 1497 (1857) 

 J (Cayenne ; nnm. indemr.'). 



