Scudder.] 190 [November 3 



i 



is only by a few scattered grimy scales in the intervening interspace ; 

 the row of submarginal yellow (or pallid) spots would seldom be no- 

 ticed, at least below the subcostal interspaces, but for a comparison 

 with the normal type, or its continuance in the broader part of the 

 band above. This is precisely what we find in Eurymus Pelidne, 

 and so far as the upper surface of the pallid female is concerned, 

 his species could scarcely be distinguished from the monomorphic 

 E. Pelidne. The under surface of the Cape Breton insect, however, 

 is dotted but lightly with griseous, and can be compared only to that 

 of the true E. Philodice; although the submarginal spots of the hind 

 wings, which are usually very conspicuous in New England speci- 

 mens, never occur along the outer border in either sex of the Cape 

 Breton type. The dimorphic pallid female, then, of the Cape Bre- 

 ton form of Eurymus Philodice approaches more closely the uniformly 

 pallid female of the Labradorian E. Pelidne, than it does the nor- 

 mal dimorphic pallid female of its own species from New England. 

 The gynandromorphic female of E. Philodice, whether of Cape Bre- 

 ton or of New England, finds, however, no parallel in Labrador, and 

 the Cape Breton male agrees only with the Philodice-type. It should 

 be added in this connection that the butterfly collected by Prof. 

 Hamlin at Waterville, Me., on the strength of which I have once or 

 twice in my list referred Eurymus Pelidne to northern New England, 

 is nothing but the pallid female of this Cape Breton type, to which 

 I would give the varietal name laurentina. Thirty-nine specimens 

 were collected, of which ten were gynandromorphic females, eight 

 pallid females, and the rest males. 



Lirnochores Taumas. Specimens from this region, as shown 

 both by Mr. Thaxter's collections, and others sent me several years 

 ago by Mr. J. M. Jones, of Halifax, are remarkable for their smaller 

 size, and the almost total absence of dull fulvous dusting upon the 

 under surface of the hind wings, the upper and under surface being 

 almost precisely alike in general tint. 



November 3, 1875. 



Vice President, Mr. S. H. Scudder, in the chair. Thirty 

 persons present. 



Prof. Morse remarked on the differences of some species of 

 Mollusca as found in the aboriginal shell heaps, and at the 



