134 PROCEEDINGS OF TEE NATIONAL MUSEUM. 



with distinctly wider primaries. The macnlation is intermediate in 

 type between ovata and hamamelis, wliile on the wliole the tendency to 

 a darker basal space makes the similarity to the latter most obvious. 



The species in this group are somewhat closely allied, but, I believe, 

 distinct. So far as 1 am aware they have no European counterparts. 



ACRONYCTA ALBARUFA Grote. 



(Plates III, (ig. 10, adult; XII, fig. 9, female adult; XVI, fig, 11, veuatiou; XVII, 

 fig. 32, leg; XXI, fig. 24, male genitalia.) 



ApateJa alhariifa Grote, Proc. Bost. Soc. N. H., 1874, XVI, p. 239; Papilio, 1883, 



III, p. 68. 

 Acronycta walkeri Andukws, Can. Ent., 1877, IX, ]>. 98. — CJuakk, Bull. Bldu. Eut. 



Soc, 1879, 1, p. 93, pr. syu. 



Ground color a very dark bluish gray, with a more or less evident 

 reddish suffusion, which is more obvious on the primaries. Front 

 whitish, with a black line at the base and some black scales at the tij), 

 which do not form a complete line. The primaries have all the mark- 

 ings fairly distinct. The basal line is geminate, marked on the costa 

 only, and sometimes not well marked even here. Transverse anterior 

 line geminate, black, broken, outwardly curved from the costa to the 

 basal dash, where it is drawn in very considerably. It is again out- 

 wardly curved toward the hind margin, but rarely reaches that point 

 in its completeness. Median shade line obliquely bent from costa to 

 between the ordinary spots. This space may be broken, and the line 

 then extends almost upright to the inner margin. As a rule, however, 

 the line is very faint below the ordinary spots and frequently it ends 

 at that point. Transverse posterior line geminate, broadly outcurved 

 over the cell, and moderately bent in the submedian interspace. The 

 inner ])ortion of the line is not defined and is evident only by the fact 

 that the included space is usually whitish, or at least paler than the 

 ground color. The outer line is narrowly black, sometimes a little 

 lunulate and shaded outwardly with reddish. There is a vague paler 

 subterminal line, which is sometimes quite evident and very even and 

 again entiiely obscured. There is a series of terminal lunules preceded 

 by a white shade, and beyond them the fringes are cut with dusky. 

 There is an evident black basal streak which extends to the transverse 

 anterior line. It is slightly curved, so that meeting the transverse 

 anterior line it incloses an oval space at the base> There is a some- 

 what well-marked dagger in the submedian interspace extending from 

 the margin to and sometimes even through the transverse posterior line, 

 although this is rare. Opi)osite the cell a blackish spur may be seen 

 from the terminal space which in extreme cases reaches the transverse 

 posterior line, but may be entirely wanting or marked only by a some- 

 what more dusky patch between veins 5 and G. The ordinary spots 

 are large and well marked j the orbicular round, pale, sometimes with 

 a dusky center, neatly ringed with black in most instances. The rent- 



