June 1894.] NeUMCEGEN & DvAR. N. A. BOMBYCES. 59 



Sj'//o/sis of species. 



Secondaries yellowish with black border ...... rossii. 



Secondaries uniformly smoky blackish ..... groenlanidca. 



D. rossii Curtis. 



1S35 — Laria rossii Curtis, 2d Voyage, Ross, App. , p. 70. 

 Blackish gray, transverse anterior and transverse posterior 

 lines and discal dot black, pulverulent, indistinct, the lines undulate. 

 A dentate irregular siibterminal line, faint between veins i and 2, 

 becoming a large round black spot bordered outwardly by white, 

 with which color all the lines are obscurely defined. Secondaries 

 black, with a large central area pale sordid yellow. Expanse, 

 35 mm. 



Habitat, Arctic regions. 



D. grcenlandica Homeyer. 



li-j^ -Dasychira gnviilaiidica Homeyek, 2te Deutsche Nordpolarfahrt, Vol. 



II, p. 469- 

 1?>()2—Dasychira gi\mlandica SKINNER & Mengel, Proc. Acad. Nat. Sci. Phil. 



Smoky black, sub-diaphanous ; primaries of c/' with the veins 

 marked in black ; 9 nearly devoid of markings. [Skinner & Mengel.] 

 Habitat, Greenland. 



[Note. The following three genera, which may all be Noctuids, are included 

 here until their proper relations are better known ; since if looked for among the 

 Bombyces, they fall into the present location in our synopsis of families.] 



Genus Acherdoa ]]\jll;er. 



1S65 — Acherdoa Walker, Cat. Brit. Mus., pt. XXXII, p. 451. 



1884 — Variiia Neumcegen, Papilio, Vol. IV, p. 94 ; 1892— Smith, Can. 



Ent., Vol. XXIV, p. 135 ; 1893— Packard, Can. Ent., Vol. XXV, 



p. 151. 



A. ferraria Walker. 



1865 — Acherdoa ferraria Walker, Cat. Brit. Mus., pt. XXXII, p. 451. 

 1884 — Variiia ornala Neumcegen, Papilio, Vol. IV, p. 94. 



Reddish brown, secondaries brownish black. Basal, transverse 

 anterior and transverse posterior narrow black lines, the two latter 

 with a broad distinct white edging on the lower half : between 

 them the wing is deep brown with a black shade. A minute 

 orbicular and larger eniform, pale brown discal spots, the latter 

 bordered with white. A pale subterminal line, often obsolete 

 superiorly, near internal angle defined by several large pulverulent 

 black marks. A narrow terminal black line. Between basal and 



