( 3,55 ) 



Sjiot in apex of cell and dot outside D' 



more or less comiiletely merged togetlier 2>'<5. /. s/rni)i»oiii. 



d. Underside of abdomen wliite, with con- 



sjiicnons black dots .... 2'.ii). /. excrUior. 



Underside of abdomen grey shaded with 



brown ........ e. 



e. Forewing above almost entirely blackish 



brown ; border of hindwing reaching 



halfway to cell ..... 288. f. coiH/rrttKlun-'. 

 Forewing above brown, with little grey 



scaling and a rnsset ])atch on disc ; 



border of hindwi[ig not reaching halfway 



to cell ....... 2811. /. srijron. 



Forewing grey or white, at least in apical 



third 



J. Thorax and forewing ashy grey . 

 Thorax and forewing chalky grey 



284. Isognathus leachi. 



Sphinx Imrhi Swainson, Zn„l. IlluMi: iii. t. 150. f. 1 (1823) (Brazil). 



Ancen/x Hci/nm, Walker (twii Cramer, 1780), Lht Lep. Jits. B. M. viii. p. 2>b, n. 5 (1HJ6) (p.irtim ; 



Villa Nova). 

 hiHjnathiis h.m-hi, Felder, Wii:ii. Eit. Mun. vi. p. 18S (1862): B itl , Tmiii. /Cod. Soc. Liiul ix.. 



p. 602. n. G (1877) ; Kirby, Cht. Up. Lei. i. p. 698. n. 12 (1892) (Brazil). 

 .itifcryx li-arhi, Boiaduval, Sjier. Gen. Lep. Ilel. i. p. 125. n. 8 (1875) (partioi ?). 

 *Anceryx eahuchu id., I.e. p. 122. n. 4 (1875) (coll. Charles Oberthiir). 

 *hi><jimthus metasrijrtm Butler, Prur. Ziuil. ^'oc. Lnml. p. 258. n. 51 (1H75) (Villa Nova ; — Miis. Brit); 



id., Tram. ZmJ. Sor. Lnml ix. p. r>02. n. 7. t. 94. f. 7 ( ? ) (1877). 

 Pupiulosp/ihu sci/roii, Burmeiftter {nun Cramer, 1780), Descr. Rep. Argent, v. p. .327. n. 2 (1878) 



(partim). 

 hnynalhnx mhurliH, Butler, I.e. p. 629 (1877) ; Kirby, I.e. n. 6 (1892). 

 (?) Imgiialhns pedilanthi, Bonninghausen, Iris xii. p. 117. n. 23 (1899). 



c? ? . Bands of abdomen not distinct. 



Wings, Ujjjjfrside. Forewing : basal mesial elongate patch about 2h mm. 



broad ; cross-vein D' pale, sejiarating distinctly a ronnded spot from the patch 

 bituated in the cell ; black discal streak R' — M' heavy, more or less connected 

 with the curved jiatch behind M''; greyish white scaling sparse, no distinct grey 



interrupted vein-streaks posteriorly on disc. Hindwing : marginal band distinctly 



and almost regularly dentate, not constant in width. 



Amount of yellow on underside variable. 



Larva not known with certainty. Bonningliausen says of the larva of what he 

 ca,\h perlilant/d, that it is marked with brown, black, and grey, and has no rings ; 

 his /jcdildiithi may be this or tiie following species. 



Ildh. iSonth America : .Surinam to (Southern lira/Jl. 



In the Tring Museum 4 cJ cJ, 13 ? ? from : Leopoldina ; Minas (ierai^s, 12. .\ii., 

 I'l. ii. (Kennedy) ; iiio Negro (I'ratt) ; (!ayenne. 



In the I'aris Museum from tlie frontier of Uruguay. 



285. Isognathus swainsoni. 



Anceryx Hri/ron, Walker (mm Cramer, 1780), I.e. viii. p. 225. D. 5 (185(')) (partim ; Brazil). 

 JmgnathiiH Hwaimiini Felder, Wien. Ent. .Man. vi. p. 187. u. 175 (1862) (Rio Negro); Butl., 

 'I'ram. ZouL Soc. Lmul. ix. p. 002. n. 9 (1877) ; Kirby, Cat Lep. Ilel. i. p. 698. n. 10 (1892). 



