428 ON SPECIES OF HADENA SMITH. 



Eeddish or luteo fuscous, more or less black powdered, veins often 

 and sometimes wiug generally, with white powderings. A small black 

 basal streak and a more prominent shade along internal margin at ter- 

 mination of t. a. line. Basal line variably distinct, geminate, included 

 space usually i)aler. T. a. line outwardly oblique, curved between 

 veins; sometimes obsolete, sometimes preceded by a pale shade. T. p. 

 line about parallel with outer margin, dentate on veins, followed by 

 white points. S. t. line pale, irregular, sometimes with an indistinct 

 W mark, preceded by a series of more or less confluent blackish sag- 

 ittate spots. A row of black terminal lunules. A broad variably dis- 

 tinct median shade darkens the cell between the ordinary spots, then 

 runs rigidly oblique, and moderately close to t. p. line to hind margin. 

 Claviform variable in size and shape ; sometimes small, rounded, and 

 again extending nearly across the median space. Orbicular oblong or 

 oval, oblique, moderate in size, more or less white powdered. Eeniform 

 large, upright, variable in shape, with broad white powdery annulus 

 and powdery brown center; secondaries fuscous, with paler, more yellow- 

 ish fringes. Beneath paler than above, powdery, with variably distinct 

 outer lines and discal dots. Head and thorax concolorous with prima- 

 ries. Tuftings distinct but not prominent. 



Expands 35 to 43 millimetres, 1.40 to 1.72 inches. 



Habitat. — Labrador, Greenland, Iceland. 



The synonomy of this species sufficiently indicates its variability, but 

 recognizing this, there is no difficulty in identifying the species, since it 

 offers obvious differences from all the preceding. 



For a fuller bibliography and for the authority for the synonymic 

 references the student should consult Staudiuger's Catalogue, which I 

 have followed in this respect, and Walker's List and descriptions in the 

 British Museum Catalogue. Nearly all the forms are credited to Labra- 

 dor, and the species is not common in collections. 



Xylophasia sommeri Lef. 



1836. Lef. Ann. Soc. Ent. Fr. v, 391, pi. 10, f. 1, Hadena. 



1852. Gd., Sp. Gen. Noct. i, 187, Crymodes. 



1856. Wlk., C. B. Mus. Lep. Het. ix, 220, Crymodes. 



Paler grayish fuscous, the median space darker fuscous brown. 

 Basal line geminate, distinct, included space pale, t. a. line outwardly 

 curved between veins; geminate, the inner line obsolete, outer line 

 black, included space pale, t. p. line obsoletly geminate, the outer line 

 indistinct, included space pale, widely projected outwardly over the cell, 

 dentate on veins, then with an inward curve to hind margin. S. t. line 

 pale, distinct, sinuate, and in veins three and four dentate, preceded 

 by fuscous, more or less sagittate spots. A paler shade at base of 

 fringes, in which is a row of small terminal black dots. A rather faint 

 median shade line between the ordinary spots and then close to t. p. 

 line to inner margin. Claviform rather large, extending nearly across 



