Geometridac of the Argentine Republic. 331) 
246. Hymenomima amberia (Schaus). 
Boarmia amberia, Schaus, Tr. Anier. Ent. Soc,. xxvii, 183 
(Feb. 1901V 
Hymenomima subsordida, Warren, Nov. Zool., viii, 478 
(Dec. 1901V 
(“) Parana, Entre Rios (type), in coll. Rothschild; Tucu- 
man, in coll. Dognin ; ? Gran Chaco, near Florenzia, in 
coll. Br. Mas.; Pirapb (Bastelberger, J. B. Nass. Ver. 
Nat,, Ixi, 75). 
Schaus’ type (^) was from S.E. Brazil; I have also seen 
the typical form from Paraguay. 
The British Museum example from Gran Chaco is con¬ 
siderably smaller and of a somewhat different aspect; it 
may represent a local race or allied species, though possibly 
it is a mere aberration. 
I have accepted the synonymy as communicated to me 
by M. Dognin, and this may possibly prove to be correct, 
although on going into the question together last year, we 
decided that it was by no means a certainty. 
247. Hymenomima perfuscimargo (Prout), nov. sp. 
d. 29 mm. Of the size and somewhat the aspect of B. exangulata, 
Warn, Tr. Amer. Ent. Soc., xsx, 508, from British Guiana ; fovea 
extremely develoj^ed, much as in that species. Wings bone-colour 
tinged with ochreous, speckled with fuscous, and with almost the 
entire distal area broadly fuscous, though with the apex of forewing 
paler, the subterminal pale line faintly traceable and the space 
between this and the termen irregularly mixed with the lighter 
groundcolour, especially on the hindwing ; proximal boundary of 
this area (= postmedian line) on forewing from two-thirds of costa 
to three-fifths of inner margin, incurved below cell, on hindwing 
from near three-fourths of costa, outangled at SC^, somewhat out- 
curved from Bb then inbent below cell, finally reaching inner 
margin at beyond two-thirds, by a bend distad, as in H. exangulata. 
Forewing in addition with basal area more or less fuscous, a fuscous 
discal mark, preceded by a dark mark on costa which represents the 
beginning of a faintly traceable median shade, angled below SC, 
crossing discal spot, running obliquely towards inner margin and 
continued as an antemedian line on hind wing. Hindwing in 
addition with a rather large comma-shaped cell-spot, placed rather 
near postmedian line, the cell being longer than in most of the allies. 
Undersurface much more weakly marked, the terminal dark baml 
Z 2 
