14 Journal New York Entomological Society. [Voi. xl 



Of the other species referred by me as \ds\eX.\es, Ja ncifiiacii/a is a 

 good species and so is comis, which I referred to as a synonym of oli- 

 vacea. This latter correction I made in the Trans. Am. Ent. Soc, 

 XXVII, 230, and would not think it necessary to repeat it here ex- 

 cept for the fact that in Dr. Dyar's catalogue the species is again 

 referred as a form of olivacea ; and practically every form separated in 

 my recent review of the species allied to olivacea appears as a syn- 

 onym without explanation or comment. It goes without saying that 

 I do not accept this reference, and prefer to regard the species as listed 

 in the paper above referred to. 



Aside from the forms allied to olivacea I have described since the 

 revision 27 species, Mr. Strecker has described four, and one addi- 

 tional species is presented here. This gives altogether a series of 116 

 species, and the end is not yet. 



JMamestra purpurissafa, M. juncimaciila and M. niigatis form a little 

 group of allied yet perfectly distinct species, the male genitalia of 

 which are shown at PI. I, Figs, i, 2 and 3. The figure representing 

 purpurissata is redrawn from an eastern specimen, because Fig. 6 in 

 my revision of Mamestra, Proc. U. S. Nat. Mus., XIV, PI. VIII, 

 really re\)rt?,&xi\.s jKnci/nacula and not purpurissata as stated. The fact 

 s that both species may have the ordinary spots either fused or sepa- 

 rated, though the fusing is rare \^ purpurissata, while it is not uncom- 

 mon in junci macula. Of the five examples of the latter species now 

 before me two have fused spots, while of the eight examples of the 

 former only one shows any appearance of a union. Comparing the 

 two series, purpurissata has dark secondaries in both sexes, the pri- 

 maries broad, with the median lines fairly obvious. In juncimacula 

 the secondaries are whitish in both sexes, with smoky outer bordering : 

 the primaries are narrower, have a more pointed apex, the outer mar- 

 gin is much more oblique, the hind angle distinctly retracted and the 

 median lines are practically lost. It is altogether a brighter species 

 and the s. t. line has the W-mark sharply cut to the outer margin. 



Nuf!;atis is smaller than either of the others and has entirely white 

 secondaries. The primaries are more \\\iG juncimacula, but strigate in 

 appearance with the transverse maculation practically all lost. The 

 tendency here is also to a union of the ordinary spots ; but whereas, 

 in the larger forms the line of connection extends inferiorly on the 

 median vein, in nu^^atis it is central and through the cell itself. 



Another series of allies is Mamestra discalis, nimbosa, imbrifera, 



