380 BULLETIN 41, UNITED STATES NATIONAL MUSEUM. 



Genus MEGACHYTA Git. 

 1873. Grt., Trans. Am. Ent. Soc, iv,306. 



M. lituralis Hbn.* 



1818. Hbn., Zutra>ge, i. 9, f. 19, 20, Ejnzeuxis. 



1816. Hbn., Verzeiclmiss, 346, Epizeuxis. 



1854. Gn., Spec. Gen., Delt., 79, HeUa. 



1859. Wlk., C. B. Mus., Het., xvi, 134, Epizeuxis. 



1872. Zeller, Verb. k. k. zool. bot. Ges., xxii, 473, ZanclognaUia. 



1873. Grt., Trans. Am. Ent. Soc, iv, 306, Megachyta. 



Habitat. — Canada to Florida and Texas; Central States; IsTew 

 York and Delaware iu June; District Columbia in August. 



M. theralis Wlk. * 



1859. Wlk., C. B. Mus., Het., xix, 8.5.5, Herminia. 

 (lecepiiicdlh Zoll. 



1872. Zeller, Verb. k. k. zoiil. bot. Ges., xxii, 473, Zanclof/iiatha. 



var. gypsalis Grt. 

 1880. Grt., Bull. Bklu. Ent. Soc., iii, 65, Megachyta. 



Habitat. — Nova Scotia to North Carolina, to Ohio. 



Walker's type is in the British Museum, and is the deceptricalis of 

 the Grote collection and of Zeller. The type of gypsalis, also iu the 

 Museum, is a partly suffused form, scarcely worthy of a varietal name. 



M. iiiconspicualis Grt. 

 1883. Grt., Can. Ent., xv, 30, Megachyta. 



Habitat. — New York. 



The type is in the Hill collection. 



Genus HORMISA Wlk. 

 1859. Wlk., C. B. Mus., Het., xvi, 74. 



H. absorptalis Wlk.* 



1859. Wlk., C. B. Mus., Het., xvi, 74, Rormisa. 

 niihili/aKcia Grt. 



1873. Grt., Bull. Buff. Soc. Nat. Sci., i, 85, pi. 2, f. 2, 3, TAtogrtatha. 



Habitat. — Canada to Virginia; Central States; New York, in July. 



Both types are in the British Museum. Mr. Grote refers absorptalis 

 to Epizeuxis (vmula, and at first sight this appears correct, from tlie 

 rubbed condition of the specimen; but more careful comparisons show 

 that the species named by Mr. Grote nubilifascia is represented. The 

 present species is fairly to be considered the type of Rormisa, and must 

 replace Litognatlia, which has the same type. A type of nubilifascia is 

 also in Dr. Lintner's collection. 



H. Utophora Grt. 

 1873. Grt., Bull. Buff, Soc, Nat, Sci.,i, 86, IMognalJia. 

 Habitat.— Middle and Central States. 

 The types are in the British Museum and iu Dr. Lintner's collection. 



