Geometridae of the Argentine Bcpuhlic. 223 
adela, where the pale vein-ends only narrowly break the continuity 
of the dark line. Hind wing slightly shaded with grey in basal part, 
an elongate cell-spot, shortly followed by an indistinct grey median 
line ; an indistinct outer dark line nearly parallel with termen, but 
slightly wavy, and somewhat sinuate inwards distally to cell and 
below' Mb Underside unmarked, forewing tinged with reddish, 
especially at costa and on veins (much as in adela). 
Buenos Aires, January 27, 1907 (A. F. Bayne). Type 
in coll. L. B, Prout. 
I fancy the species has been overlooked, or mixed with 
some of its allies; if it has ever been named, I have been 
quite unable to trace it. It comes rather near some forms 
of adela, Dogn., but, apart from certain superficial differ¬ 
ences noted above, the $ antenna apparently has rather 
longer ciliations, and the hindwing has SC^ and shortly 
stalked, whereas in all the adela which I have examined 
they are connate or just separate.* Besides the type 
specimen,! possess a worn $ trom Ciudad Bolivar, Orinoco, 
Venezuela, dated August 17, 1898, which is quite clearly 
conspecific, and the British Museum has a $ from Dominica 
and another from Grenada which I refer here, the latter 
darker-coloured and with the hindwing almost unmarked. 
All these three are smaller than the type specimen, perhaps 
on account of sex. 
31. HaMALIA (?) PTYCHOPODA (PlOUt), nov. sp. 
(Plate XLVIII, fig. 29.) 
^ $. 17-18 mm. Face fuscous, vertex of head white; palpus 
short, brown, 2nd joint dark-marked on the outer side; antenna in 
^ (?), in 5 minutely ciliated (more or less broken in all the speci¬ 
mens). Thorax and abdomen concolorous with wings ; ^ hindtibia 
thickened and with pencil of hairs, hindtarsus very short and curved ; 
$ hindtibia perhaps wdth one median spur absent.f Wings whitish 
bone-colour, sprinkled with brown atoms. Forewing with extreme 
costal edge fuscous ; discal dots grey-blackish, in the type very small, 
* I have seen a single adela in which they might, by a stretch of 
the term, be described as “ stalked,” their common base being slightly 
prolonged beyond the mere point; but even this differs materially 
from the formation in jlexifascia. 
t This is certainly the case with the only 9 hindleg available for 
examination, and I cannot find any indication that a spur has been 
broken off ; the type 9 has lost one hindleg, the other 9 both. Hence 
there is sufficient evidence to justify a query as to the generic position 
but not enough for placing it elsewhere. 
