88 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Expanse of the fore wings. S »'2 nun.; length of one fore wing, S "27 mm.; breadtii of one 

 fore wing, S 12 nmi. : length of one hind wing, S 18 uini.; l)reaclth of one hind wing. S 13 mm. 

 This is a very peculiar and well-marked species of the size of ^1. ward/'/'. 

 Herrich-Schaetfer states that his dhtud/ata is a synonym of Walker's species. 

 Oeogr/q)h!/-al range. — Brazil (Neuma?gen Coll. Brooklyn Museum); (British Museum). 



ADELOCEPH^L^V KRE^'IS \Valkei-. 



A'li/dreplKila hivri.i W.u.KEii, Cat. Lep. Het. Br. Mus., VI, p. 1500. 18.55.— Boism-v.\L, Annalea Six\ Ent. Bel- 



giiiue, XV, p. 89. 1871'.— Petkus, Die Heteroneren-Raupen, p. 10. (1898)-1901. 

 .Si/ssiMn.r breris Dy.mi, l'ro<'. Ent. Soc. Washington, IV, p. 429. INIay 13, 1901. 



Lai'ia. 



Pelerg, Die Heteroceren-Raupen, Tab. Ill, tig. 5. (1898)-1901. 



Iinaq/). — 1 9 . A distinct species allied to ^1. h/ix>Jor, but the apex of the fore wing is a little 

 more acute than in 9 of that species. Ground color uniform light gray, of the hue of a pale, 

 dead leaf with scalloped striga;; the shade is peculiar and unlike that of any other species. A 

 distinct dark extradiscal line extending from within the middle of the inner edge of the wing to 

 the costa just Itefore the apex; an obscure oblique basal line. 



Hind wings with a single line extending across the middle; no discal .spot beneath. 



Expanse of fore wings, 9 68 mm.; length of one fore wing, 9 35 mm.; breadth of one fore 

 wing, 9 16 mm.; length of one hind wing, 9 21 mm.; breadth of one hind wing, 9 15 mm. 



Geographical range. — Brazil (Neumtegen Coll. Brooklyn Museum); Rio de Janeiro. The 

 specimen in the Neumcegen collection does not exactly agree with the descriptions of Wsdker 

 and Boisduval. and further comparisons are necessary. 



Larea. — Boisduval states that the caterpillar is yellowish green with the spines of a brilliant 

 golden hue, of medium length, curved backward and directed backward; the horns on the second 

 and third thoracic segments toothed, as is also the caudal horn. The first thoracic segment 

 (collerette) has no spines, these being replaced by small conical tubercles. 



Peters states that the larva is very similar to that of ^1. sahang/d/ita and lives on the same 

 climbing, prickly plant; also on a spiny Mimosa. 



^IDEI^OCEPH^L^ CROC^T^ Boi;~auval. 



Adelocepluda crocala Boisdiv.sj., Annales Soc Ent. Belgigue, XV, \>. 90. 1S7L\ — Kikrv, Syn. Cat. Lep. Het., I, 



p. 741. 1892. 

 Adeloceplialii iirriipwdttlliii Boisdi'v.vl, 1. c, XV, p. 90. 1S72. — N'ar. Kiuuv, 1. c, p. 741. 1892. 

 anjiininuUht Dv.ui, Proc. Ent. Soc. Wash., IV, p. 429. .Alay l.S, 1901. 



imago. — I S . "One of the .smallest species; its fore wings are of a tawny yellow, as also 

 the thorax and atidoinen; (he fore wings are obliquely cros.sed from the apex to the middle of 

 the inner margin by a vitv narrow brown line; a basal sinuous obscure line; a white discal dot; 

 outer edge of the wing bathed with rosy gray; hind wings unspotted, with the fringe paler; wings 

 beneath yellowish, with an ol)li(ine brown line; the discal region of the fore wings yellow, with 

 a darker central dot."' (Boisduval.) 



In the Neumo'gen collection of the Maseum of the Brooklyn Institute is a male from Brazil. 

 It is a small species. The body and wings are ocherous. It differs froni^l. argyramntha in hav- 

 ing on the fore wings a small white discal spot; the extradiscal line fades out before reaching the 

 inner edge, while in A. argyracantha it distinctly ends on tiie inner angle of the wing, curving 

 around to it, and the discal dot is not white, but deep ocherous l)rown. The fore wings on their 

 under side are ocherous, with a pinkish wash toward the apex, and the body and hind wings are 

 whitish ocherous, almost chalky white. 



Expanse of fore wings, S 4'2mm.; length of one fore wing, S 21 nmi. ; ))readth of one fore 

 wing, S 9.5 mm.; length of one hind wing, S 15 mm.; breadth of one hind wing, 2 11 mm. 



