[113] DESCRIPTIONS OF PHAL^ENID^E. 225 



Cidaria Packardata n. sp. 



This name is proposed for the species described and figured 

 by Dr. Packard on p. 124, PI. viii, fig. 52, of the Monograph 

 of the Plialcenidce. It is regarded by him as identical with 

 the European Phalcena populata Linn., and a generic name 

 applied to it and to several allied species, taken from the 

 Tentamen list of Hubner's Stirps PETROPHORA. 



The two forms are so very different in contour of wings, 

 markings and color, that it is difficult to understand how they 

 could have been united. In PacJcardata, the primaries are 

 quite excavated from the apex to vein 4, at which point, in one 

 of the males before me, they are distinctly angulated ; the 

 secondaries are slightly angulated on vein 4. In populata, 

 a scarcely perceptible excavation may be seen below the 

 apex of the primaries, and the margin of the secondaries is 

 regularly rounded. 



In Packardata, the broad basilar band is composed of three 

 lines, the first and second of which approximate, and are sep- 

 arated by pale yellow; the second and third are distant, with 

 dark yellow between. In populata, the band consists of but 

 two lines with pale yellow between, or a third line may be 

 faintly seen near the third. 



In our species, the whitish band between the basilar and 

 mesial bands is more sharply angulated toward the costa 

 above the median vein, and its outer border is more strongly 

 toothed. The outer border of the mesial band differs very 

 materially in its course from the same line in populata, in 

 its running in a nearly direct line, with only a slight bend- 

 ing backward between veins 5 and 7, to near the outer 

 margin of the wing, whence it proceeds to form two promi- 

 nent produced teeth in cells 2 and 3. In populata, these 

 teeth are comparatively improminent; they are at nearly 

 twice the distance from the outer margin as compared 

 with the other species; the excavation on vein 5 is deep 

 and rounded, and thence, the course of the line to the 

 costa is nearly parallel to the hind margin instead of quite 

 oblique to it. The distinctly marked, lunulated, subter- 

 minal line of this species is barely indicated at its extremities 

 in our form, in which there seems to be no place for it 

 medially, from the approximation of the dentations of the 

 mesial band to the outer margin. The subapical patch is 



