174 BULLETIN 44, UNITED STATES NATIONAL MUSEUM. 



H. u-album Gn.* 



1852. Gn., Spec. Gen., Noct., i, 345, Ceramica. 

 1856. Wlk., C. B. Mus., Het., x, 418, C. v-album. 

 1874. Grt., Bull. Buff. Soc. Nat. Sci., H, 22, C. w-aUtm. 

 1891. Sniitli, Proc, U. S. Nat. Mus., xiv, 231, Mnmenlra. 



purpuripcnnis Grt. 

 1874. Grt,, Proc. Ac. Nat. Sci. Phil., 1874, 20(5, Apamea. 



ItaJiola Morr. 



1874. Morr., Proc. Bost. Soc. N. H., xvir, 148, (h-thosia. 



1875. Grt., Can. Eut., vu, 58, = purpuripcnuix. 



1875. Grt,, Bull. Buff. Soc. Nat. Sci., n, 300, = purpuripcnnis. 



HABITAT. Massachusetts, May, June, August; New York; Illinois; 

 Minnesota. 



Guenee's type is in the British Museum. Messrs. Morrison and 

 Grote described at nearly the same time, both from material collected 

 by Mr. Thaxter, \vho probably has both types. 



H. velata Wlk.* 



1865. Wlk., C. B. Mus., Het., xxxn, 671, Apamea. 



1891. Smith, Can. Ent., xxm, 121, Apamea. 



sera G. & K. 



1868. G. & K., Trans. Am. Eut, Soc., I, 345, pi. 7, f. 55, Hijdrccda. 



1874. Grt., Bull. Buff. Soc. Nat. Sci., n, 18, Hydra-cia. 



1874. Grt., Proc. Ac, Nat. Sci. Phil., 1874, 206, Apamea. 



1882. Grt., Can. Ent., xiv, 170, Helotroplia. 



1884. Bean, Can. Ent., xvi, 67, larva on Atu-mom-. 



1891. Smith, Can. Ent., xxin, 121, pr. syn. 



HABITAT. Canada; Maine to Pennsylvania; west to Missouri; Iowa, 

 June, July, and August. 



Walker's type is in the National Museum. I do not know where 

 Grote and Eobinson's type is at present.t 



H. juvenilis Grt.* 



1881. Grt,, Bull. Geol. Surv., vi, 267. dortijna. 

 1881. Grt., Trans. Kaus. Ac. Sci., vu, 68, Gortyna. 



HABITAT. Colorado ; Kansas. 

 The type is in the British Museum. 



H. iiictitans Linn.* 



1761. Linn., Fn. Suec,, 1215. Noct it a. 

 1767. Liun., Syet, Nat,, ed. xn, 847, Noclna. 

 1792. Bkh., Eur. Schmctt,, iv, 463, Noctim. 

 1816. Ochs., Schmett. Eur., iv, 75, Apamea. 

 1816. Hbn., Verzeichniss, 232, Sidcndia. 

 1852. Gn., Spec. Gen., Noct., i, 126, Hydra-cia. 



t From this point to Xylomiges, my rci'erences to dates and localities are less com- 

 plete, owing to the fact that the set of galley proofs first corrected by me were lost 

 en route or mislaid at the printing office. I threw away the note slips after I had 

 entered them on the galley proofs, and was not able to duplicate them afterward. 



