144 PBOCEEDINGS OF THE NATIONAL MUSEUM. vol.xxi. 



yellow with some dots around I and II. Hairs white, single, with small 

 bristly crown of secondary hairs. 



Stage V. — Head, 1.8 mm. As before. 



Stmje VI. — Head, 2.5 mm. wide; pale whitish, granular, a small brown 

 reticular streak on each lobe above. Tubercles large, single haired 

 with a trace of the crown of short hairs. Tubercles yellow, as also a 

 dorsal, subdorsal and lateral row of spots. Ground color sordid, faintly 

 reddish tinted. 



Stage VII. — Brown, a blotched dusky blackish dorsal stripe, cut by 

 pale areas around warts I and II; these areas reddisli brown, concolor- 

 ous with the body. Sides slightly mottled. Tubercles and setae white, 

 spiracles black. Otherwise as in ovata. 



Food plants. — Oak, chestnut, birch. 



ACRONYCTA INCRETA Morrison. 



(Plate XII, fig. 13, female adult.) 



Acronycta iuereta Mokkison, Troc. Bost. Soc, N. H., 1874, XVII, p. 131. 

 Lepitorvmna liicreta Grote, Papilio, 1883, III, p. 112. 



Ground color very dark smoky gray with a slight yellowish shad- 

 ing. Head without distinct markings; collar usually dark at base; 

 patagiae black powdered. Primaries with all the markings distinct. 

 Basal line black, geminate, reaching to the inception of vein 1. Trans- 

 verse anterior line black, geminate, very evenly oblique, the space 

 between the two defining lines more or less black filled. The median 

 line is marked on the costa and again below the reniform, but it is 

 usually obscure and not distinctly traceable. The transverse posterior 

 line is geminate, black, squarely bent outwardly, and almost as squarely 

 bent in on the submedian interspace. There is a very obscure sub- 

 terminal line, whicl* is best marked in the pale specimens, and empha- 

 sized by the slightly darker terminal space. There is a series of ter- 

 minal dots or lunules from which black rays are sent inwardly, more or 

 less defining a lunulate terminal pale line. There is a broken and 

 irregular black line at base, which reaches the transverse anterior 

 line, but does not always reach the root of the wing. There are no 

 dagger marks. The ordinary spots are of moderate si/.e and not well 

 defined. The orbicular is round, of the ground color or a little paler, 

 with a dusky center. The reniform is large, upright, slightly drawn in 

 at the outer margin. The secondaries are smoky, a little paler in the 

 males. Beneath smoky, more or less powdery, with a dusky outer line 

 which is much the best marked on the secondaries and a more or less 

 evident discal lunule. 



Expanse, 1.16 to 1.28 inches (29 to 32 mm.). 



Habitat. — New York; Kew Jersey; Texas; New Mexico. 



This species resembles hamamelis, but is distinctly smaller through- 

 out, decidedly narrower winged, and as a whole much darker. Of the 



