Arctildee 



Genus APANTESIS Walker 



The metropolis of this genus is North America, only two 

 species attributed to it being found in the Old World. There 

 are over twenty valid species found within our limits, and 

 numerous so-called subspecies and varietal forms. A small 

 treatise might be written upon these, but in a volume like 

 this, which is designed to cover in as compact form as pos- 

 sible the most needed information, all that we can do is to 

 help the student to the determination of the more important 

 species. 



(1) Apantesis virgo Linnaeus, Plate XV, Fig. n, <3 . 

 (The Virgin Tiger-moth). 



Found in the northern Atlantic States and Canada. 



(2) Apantesis parthenice Kirby, Plate XV, Fig. \j, $ . 

 (The Parthenice Moth.) 



Syn saundersi Grote. 



The habitat of this species is the same as that of A. virgo, 

 from which it may always be discriminated by its smaller 

 size, the narrower white lines upon the fore wings and the 

 absence of the dark spot at the origin of vein two on the 

 hind wings, which is characteristic of the former species. 



(3) Apantesis intermedia Stretch, Plate XI, Fig. 20, $ , 

 (The Intermediate Tiger-moth.) 



This species which is by some authors regarded as a 

 southern form of A. parthenice, is intermediate in size between 

 A. virgo and A. parthenice. It closely resembles the latter in 

 the maculation of the wings, but the pinkish-white stripes on 

 the primaries are broad as in A. virgo. 



(4) Apantesis oithona Strecker, Plate XVI, Fig. 30, $ . 

 (The Oithona Moth.) 



This insect is undoubtedly genetically the same as A. recti- 

 linea French. The difference is merely in the width of the 

 pale lines on the fore wings, which, being narrower in recti- 

 linea, give these wings a darker appearance. 



Form rectilinea French, Plate XV, Fig. i, ?. (The 

 Straight-lined Tiger-moth.) 



This insect in its varietal forms ranges from the Atlantic 

 States across the Mississippi Valley. 



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