Geometridae oj the Argentine Uejiuhlic. 
271 
111. Dysstroma citrata (Linne)(?). 
Phalaena {Geomeira) citrata, Linne, Fauo. Suec., ed. 2, 332 
(1761). 
Phalaena immanata, Haworth, Lep. Brit. (2), 323 (1809). 
Poli/phasia tncncata rufihrunnea, Warren, Nov. Zool., vii, 
181 (1900). 
“ Parana, Entre Rios,” in coll. Rothschild (types of 
Warren’s truncata rujihritnnea). 
I have very fully discussed the synonymy of this widely 
distributed Holarctic species in Trans. City Bond. Ent. 
Soc., xviii, 33-60, together with that of its congener 
Dysstroma truncata, Hufn., to which Mr. Warren referred 
his rufihrunnea. And I there expressed the doubt, which 
I still entertain, whether the supposed Parana record were 
not founded on some error in labelling, or—unlikely though 
this latter explanation seem—on some European material 
accidentally imported into Argentina. “ Not only the 
species, but the entire group is absent from the vast 
intervening area of tropical America, and the specimens 
are so normal in appearance as would be almost incredible 
on the assumption of an ancient geographical isolation ” 
{loc. cit., p. 51). 
112. Hypolepis prionogramma (Prout), nov. sp. 
(Plate XLVIII, fig. 19.) 
. 24 mm. Face and palpus light brown. Antenna brown, the 
.scales of dorsal surface in alternate bands of brown and straw-colour. 
Forewing whitish, dusted and clouded with brown, and with a 
decided tinge of straw-colour, especially in basal and costal areas 
and on median vein ; the markings brown ; basal line from inner 
margin, outangled, bounded distally with white, but lost in the costal 
clouding after vein M ; an irregular subbasal band, its distal margin 
projecting at SM^ and more broadly below M, the band constricted 
in cell, widening again costad; median band much as in H. serratilinea 
(Warr.),* containing distinct white spot at lower angle of cell; sub¬ 
terminal line weakly indicated, but with distinct dark patches 
pro.ximally to it at costa and (smaller) at inner margin, some vague 
dark clouding between ; termen clouded with darkish brown, the 
most prominent patch being a large irregular triangle between costa 
and its acute apex placed on ^t about 2h mm. from termen ; 
* PsaUodes serratilinea, Warr., Nov. Zook, xi, 70 = Hypolepis 
serratilinea, Warr., ibid., 521. 
