410 MR. A. e. BUTLER ON THE 



line ; body hrown, face spotted with white ; back of head, ])terygodes, 

 and back of thorax spotted with metallic green ; abdomen with two 

 basal white spots, two or three dorsal green spots on the hinder seg- 

 ments and a green lateral interrupted streak along each side ; antennse 

 black-brown, white at base ; wings below dark brown, with diffused 

 metallic green streaks along the costal and median nervures ; body 

 brown below, sides of palpi, front coxae, and a row of spots along each 

 side of venter metallic green : basal segment of abdomen and hind 

 coxae white; tarsi ochreous : expanse of wings 43 millims. 

 St. Paulo (Bates). Type, B.M. 



This species may eventually turn out to be the male of I'seudo- 

 spTienoptera ; if so, that genus (which I have considered as an ab- 

 errant group of the Euchromiinse) will have to be referred to the 

 present subfamily, in which it will still form an aberrant genus on 

 account of the absence of the third median branch in secondaries. 



Genus Illipula, Walker-. PI. XXIX. fig. 2. 



1 . Illipula alecton = Sphinx alecton, Cramer, Pap. Exot. iv. pi. 382. 

 f. D. 



Sesia melanochlorus, Sepp, Surin. p. 145, pi. 69. 



Brazil {Mornay). B.M. 



The larva ot this species is figured by Sepp ; it is white, and 

 clothed with long, slender, white hairs, but has no tufts of bristles 

 at either extremity. Sepp remarks respecting it : — 



" Nous tromdons cette Chenille velue couverte de polls longs et 

 blancs, dont nous donnons la figure sur la feuille inferieure, au 

 mois de Eevrier sur la feuille d'un vegetal, qu'on nomme Tayer 

 inclien au Surinam, et nous la decouvrimes six mois apres sur 

 les feuilles des Jurea-bessies, mais nous ignorons la denomination 

 Latine de ces deux vegetaux." 



2. I. DOLOSA = Euchromia (Pampa) dolosa. Walker, hep. Het. i. 

 p. 238. 



Pernambuco (J. P. G. Smith.) Type, B.M. 



It is a curious fact that although the two species above quoted 

 are placed consecutively in Mr. Walker's Catalogue, he failed to 

 see that they were congeneric. 



Genus Ixylasia, n. gen. PL XXIX. fig. 8. 



Chiefly differs from lUipula in its much greater size, more robust 

 body and antenna^, a brush of hairs on each side of the basal 



