( 357 ) 



*. liu-n-i/x mfiirrhns Bo\!i(l\iwa.l, Spec. Gen. Lfp. Het. i. p. 124. n. 7 (1875) (Cayouue ; — coll. diaries 



Oberthiir). 

 Anceri/x rimo.iti, id., I.e. p. 125. n. 9 (1892) (partim ; Brazil). 

 *Am-fr!/x pdiip.1 id., I.e. p. 126. n. 11 (1875) (hab. ? ; — coll. Charles Oberthiir). 

 */su,/Hnlhu>i amnzonU-ux Butler, Trans. Znnl. Sm: L„„d. ix. p. (!!)1. n. .'5. t. 94. f. 8 (1S77) (Villa 



Nova;— Mils. Brit.) : Kirby. Cat. Lep. Uet. i. p. i;98. n. 5 (1892). 

 Pmnidosphiii.r snjron, Burmeister. Discr. lieji. Ari/i-iit. v. p. .'527. n. 5 (1H78) (partim) : id., I.r. Alla>: 



p. 32. t. 13. f. 4 (0 (1879). 

 hnguathiix mrnerhii.i, Kirby, I.r. n. 1.3 (1892). 

 Isngnuthus prliips, id.. I.e. n. 15 (1892). 

 Isogimthus srijmii, Bonninghausen, Iri.i xii. p. 117. n. 23 (1899) (larva ; Rio de Janeiro). 



cj?. A heavy-bodied sjiecies. Bands (if abdomen well marked, often not 

 distinetly interrupted aliove. Body and forewings of a peculiar bliiisli grey colour. 



Wings, above. Forewing with an antemedian and a discal pair of lines, 



more or less distinct at costal margin, tlie discal pair generally interrupted at R', 

 reappearing behind, here concave and connected with the antemedian pair, forming 

 with this a kind of half-ring opening at liinder margin ; a discal elongate black 

 jialcii R^ — M' invading the discal ])air of lines ; the white discal vein-streaks 

 generally conspicuous. -Border of liindwing varialile in width. 



Amount of yellow on underside also variable. 



Larva like that of PsfiH/osp//ii/.r tetrio. with wliite rings ; head, anal segment 

 and abdominal feet orange-red (Bnrmeister). 



Ildh. South America: Surinam to Espirito Santo, jieriiajis more widely 

 distributed. 



In the Tring Museum lU c?c?, 1^) ? ? from : Amazons ; Bahia ; Espirito Santo. 



The type of pelop.s is in very bad condition. We cannot say with certainty 

 whetlier it belongs here or to some other species. 



288. Isognathus congratulans. 



Erimn/js rnngrntulan/i Grote & Robinson, Prnr. Ent. Snr. PhiJad. v. p. 1()7. n. 105 (1805) (Cuba ; 



udin. hulescr.) ; Grote, Ann. Lijr. N. York viii. p. 200 (18(15) (Cuba). 

 Dilojihmwla nmgrainhins, id., Prnr. Ent. Snr. Phihvl. vi. p. 329 (18li7) (Cuba). 

 hniimtthua rnnyraiulan.t, id.. Traits. Amer. Ent. Soc. iii. p. 185 (1871) (Cuba) ; Butl., Trunn. Zonl. 



Sor. Lnnd'.ix. p. 601. n. 4 (1877) ; Kirby, Cat. Lep. Het. i. p. 698. n. 4 (1892). 

 Sphinx cnngratulan.i, Boisduval, S/iec. Gen. Lep. Het. i. p. 558 (1875). 

 Dihiphonnta rimosa, Gundlach {non Grote, 1865), Cnntr. Ent. Culiana p. 215 (1881). 



S. Bands of abdomen distinct. Forewings, aliove, for the greater part blackish 

 brown. This may be an extreme variety of rimosa. 

 Hab. (Juba. 

 In the Tring Museum 1 S from Cuba ; also in the Berlin Museum. 



289. Isognathus rimosa. 



Erlnn,/h rimoxa Grote, Pror. Ent. Snr. Philad. v. p. 73. t. 2. f. 1 ((J) (1865) (Cuba). 



c??. Body paler than in mener-kus and sri/ron ; abdominal bands distinct. 

 Ground colour of forewiug, above, chalky ; white marginal spots larger and liind- 

 wing ]ialer yellow than in menechus. 



Larva known of two of the three subspecies (see below), younger stages 

 different in colour and markings from adult caterpillar. Head and nntlerside grey ; 

 longitudinal stripes on back and irregular hiteral raiirkings. 



Ildb. Neotropical Region : West Indies, Mexico, southward t(i Nortiiern I'ra/.il. 



Three subspecies : 



