3S6 [November 



GASTROPACHA Ochsenheimer. 

 Gastropacha americana Harr. 



Gastropacha americana Harr.. Rt. Ins. Mass. p. 273. (1841). 



Third edit. fig. 176. (1862). 

 Fitch, Third Rt. Nox. Ins. N. Y. pp. 19, 337, 380. (1856) 

 Gastropacha occidentalis Walk., Cat. Lep. Br. Mus. VI. (1855). 

 Gastropacha americana Morris, Synopsis Lep. N. Amer. p. 233. (1862). 



Mass., (Coll. Harris, Sanborn.) Brunswick, Me. Captured the last 



of May. on the wing, by Mr. J. E. Dow. 



Gastropacha ferruginea n. sp. 



9 . A stuuUer species than G. americana, and which approaches 

 closely Smith's illcifolia, I have received from Prof. M. Miles of the 

 Mich. Agricultural College at Lansing. It differs from G. am'ricana 

 in wanting any cinereous bands on the wings. They are throughout 

 rusty brown. Like that species, however, the primaries are crossed by 

 two dark lines, but they are much more distinct, and the inner one is 

 deeply toothed on the discal space. The outer one is more obli(iue and 

 more sinuate, and the space between the two branches is twice as broad ; 

 indeed, we can see that it is the linear discal dot which forms the inner 

 shorter line, and that the outer branch terminates distinctly upon the 

 costa, where in G. americana it is obsolete. There is no line or dis- 

 coloration between this and the outer edge of the wing, which is less 

 excavated, and the teeth are much finer and sharper than in the other 

 species. The excavations are partially filled in with silvery white. 

 There is but a single broad dark line crossing the hind wings and ter- 

 minating at the outer edge of the basal largest excavation ; beneath it 

 does not become diffused as in G. americana. There is no ashen dis- 

 coloration on the hind wings. The head and front of the thorax are cine- 

 reous as in the other species, and the body beneath is very similar. 1 

 have compared the females pf both species. 



Length of body, .62 ; length of fore wing, .80 inch. 



Whether the Phalxna ilici/olia of Smith as figured by Abbot is 

 identical with either of the above species, can only be determined when 

 specimens are received from the Southern States. 



TOLYPE Hubner. 

 Tolype Velleda Hubner. 



Bomhyx Velleda Stoll, Sup. to Cramer, Pap. Exot. p. 178. PI. 41. fig. 4. (1787). 

 Phalxna Velleda Smith. N. H. Lep. Ins. Ga. p. 103. Tab. 52. (1797). 



