110 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxi. 



transverse posterior line. This black streak is often more or less brown 

 shaded. The median shade is vaguely indicated by a brown streak on 

 the costa. The ordinary spots are very feebly defined; the orbicular is 

 round or nearly so, a little paler than the ground color, but not ringed; 

 the reniform is very even, lunulate rather than kidney shaped, with a 

 few black scales defining it inwardly, but defined only by its own paler 

 color elsewhere. The secondaries in the female are whitish at base, 

 smoky outwardly. Beneath, the wings are whitish powdery, with the 

 usual more or less evident outer lines and discal spots. 



Expanse, 1.40 to 1.45 inches (35 to 3G mm.). 



HahHat.—l\\mo\&', New York; Minnesota; Winnipeg, Manitoba. 



Unfortunately I have females only of this species ;i one of them, a 

 specimen sent me by Prof. George H. French. The name of this insect 

 is a mistake, and based upon an imperfection in the specimen. The 

 margin below the apex is almost straight, and the least disturbance of 

 the fringes at this point gives the impression of an excavated margin. 

 As a matter of fact, in the four specimens before me there is only one 

 which gives the least color to the name. The species is an easily recog- 

 nizable one by the very dark, blue-gray primaries with a prominent 

 black streak at base, and by the reddish shades which are found in the 

 basal space and beyond the transverse posterior line. These are char- 

 acteristic and unlike any other species known to me. The front of the 

 head is a little protuberant and convex; tbe palpi are unusually long 

 and well developed, extending above the vertex in one of my specimens. 



LARVA. 



COQUiLLETT, Papilio, 1881, 1, p. 6.— Packard, Fifth Kept. U. S. Ent. Coram., 1890, 

 p. 637. 



Stage VI. — From the only observations on record the following may 

 be gathered : HeM brownish in front, pale greenish on the sides. Body 

 dark brown, mottled with pale greenish; a darker dorsal line reaching 

 to tubercle I; venter greenish white. Warts small, with one or two 

 hairs, I and II on joint 12 larger than the others. Length, 32 mm. 

 (Coquillett). I assume this to be the brown form of a normally green 

 larva. 



Food plant. — Hazel. 



ACRONYCTA PARALLELA Grote. 



(Plates III, fig. 9, adnlt; XVIII, fig. 28, leg; XXI, fig. 15, male genitalia.) 



Apaiela parallela Grote, Can. Ent., 1877, IX, p. 53; Papilio, 1883, II, p. 168. 



Ground color a very even, dark, bluish ash gray. Head and thorax 

 more or less suffused with blackish. The collar has a blackish line 

 near the base and another near the tip, while the tip is marked by 



' Since the above was written I obtained a male specimen, which shows the char- 

 acters of the series in which I have placed it in all essential features. 



