Geometridae of the Argentine Republic. 277 
The species was described from S.E, Brazil. My 
specimen is too worn to admit of any confidence in the 
determination, but from its shape and general aspect, I 
judge it likely to belong here. Many of the Buenos Aires 
species occur also in S.E. Brazil. 
127. Eupithecia argica (^Prout), nov, sp. 
(Plate XLVIII, fig. 16.) 
17 mm. Antennal ciliation minute. Face, palpus and body- 
above concolorous with forewing ; thorax paler beneath. Forewing 
pale brown-grey, irrorated with fuscous, and traversed by fuscous 
lines ; three approximately equidistant lines proximally to discal 
spot, rather distinct costally, angled in cell, and becoming more or 
less indistinct or obliterated posteriorly ; cell-spot rather distinct, 
seated on an acutely angulated (not very distinct) fuscous line, which 
runs from costa near thirddine to M well before middle of wing ; post¬ 
median from costa at nearly two-thirds, accompanied by a dark 
wedge-mark proximally at SC^ then oblique distad, rectangularly 
bent at thence straight (and parallel with termen) to inner margin; 
a very slightly paler band follows, bounded and intersected by two 
very weak lines, which follow the same course as the postmedian ; 
subterminal line lunulate-dentate, indistinct, shown only by the dark 
dusting of the rest of the distal area ; a dark mark on submedian fold 
proximally to the subterniinal, as in many neotropical species of the 
genus ; marginal line dark, interrupted at the vein-ends. Hindwing 
much paler, only the inner-marginal area concolorous with forewing, 
and showing weak indications of beginnings of dark transverse lines ; 
cell-spot scarcely indicated ; marginal line very weak. Forewing 
beneath paler than above, somewhat darkened in costal and distal 
areas ; proximal area without definite markings ; discal spot rather 
large, distinct; a curved (not angled) somewhat diffuse postmedian 
line, weaker in lower half of wing ; a somewhat pale band following, 
and bounded by a curved (not angled) line, to which succeeds the 
darkened terminal area with rather indistinct subterminal line, as 
above. Hind wing beneath pale, with faint suggestion of a subangulate 
antemedian line ; cell-spot rather large, distinct; postmedian line 
fuscous-brown, distinct, strongly curved behind cell-spot; a similar 
line midway between this and distal margin ; marginal line distinct. 
Temperlay, Buenos Aires, February 1901 (A. F. Bayne). 
Type in coll. L. B. Prout. 
An inconspicuous little species, of somewhat the tone 
of colour of an average form of the European E. vulgata 
