Geomctridae of the Argentine Republic. 
279 
The shape and the course of markings somewhat recall 
Eupithecia sihylla, Butl., Tr. Ent. Soc. Lond., 1882, 405, 
but the colour is entirely different. Except that the bases 
of the forewings are somewhat rubbed (probably in setting) 
the specimen is in beautiful condition. Besides the mark¬ 
ings enumerated, there are evidently some further lines in 
the basal area, while the median area contains two faint, 
angulated lines, the proximal of which crosses the cell-spot 
and joins the antemedian at about the middle of the wing. 
In structure, the species is a thoroughly typical Eupithecia, 
the face perhaps somewhat more sloping (prominent below) 
than in some species, the palpus rather stout and rough- 
scaled, though not so extreme as is sometimes the case in 
the genus. 
Egg yellow, oval, of the usual Eupithecia form (W. M. 
Bayne, in litt.). 
Note. —I have also from Mr. A. F. Bayne a rather worn 
$ of apparently another species of Eupithecia, taken in 
Buenos Aires on January 16, 1905. I have thus far failed 
to identify it, and although it should be quite recognizable, 
it is not sufficiently good to justify its being made the 
type of a new species, even should it prove to be hitherto 
undescribed. 
129. Amaurinia glauculata (Walker). 
Thalassodes glauculata. Walker, List Lep. Ins., xxvi, 1560 
(1862). 
Tucuman, in coll. Dognin. 
Walker’s type was from Brazil. I believe the same form 
occurs in Paraguay, but its actual range yet remains to be 
worked out. 
180. Amaurinia coerulea (Warren). 
Amaurinia coerulea, Warren, Nov. Zoo!., xii, 51 (1905). 
Tucuman ( Warren’s type and others), in coll. Rothschild; 
also one example, smaller and more unicolorous, from same 
locality, in coll. BasteIberger. 
It is not unlikely that this will sink before some older 
name, e. g. peruviensis, Schaus, Tr. Amer. Ent. Soc., xxvii, 
262, but the species, or forms, run very close, and I have 
not yet been able to examine sufficient material to justify 
any definite conclusions. I should not be at all surprised 
