15° 



A, Nevadensis, Gr. & R. is a varietal form of A. incorrupta, Hy. 

 Edw., which is the ground form, 



A. Quenselii, Geyer, Gelida, Mosch., and Speciocissima. Mosch. are 

 synonyms. 



A. Docta, Wlk., mexicana, Gr. & R., Autholea, Bd. and Arizonensis, 

 Str. are variations of the same insect, Walker's name having the 

 precedence. 



A. Dahurica, Bd. may prove to be only Cofuplicata, Wlk., which 

 latter, as mentioned above, is an ochraceous var. of Achaia. 



A. intermedia, Str. is distinct from A. Saundersii and I do not see 

 why Mr. Grote placed them as synonyms. Intermedia is much larger 

 than Saundersii and differs in its transverse and cross bands vastly 

 from the latter. 



A. Stretciiii, Gr. may prove to be only a variety of A. intermedia. 

 I have the type of Stretchii and the following note of Mr. Grote is 

 attached to it: "Differs by the basal band on forewings." This is 

 about the only difference, in fact, which I can see between A. Stretchii 

 and A. intermedia. 



A. Dione, Ab. & Smi., I can positively state, is a distinct species from 

 A. j\rge, Dru. It is much larger than Arge, has very small, black 

 maculations on primaries; the cross bands are in fact, no bands but 

 simply a line of black dashes. The wings are of a creamish white 

 color; but the main distinction is in the abdomen, which is creamish 

 white and has neither black dorsal nor black lateral stripes, but simply 

 two black anal dots. , I owe it to the kindness of Prof. H. A. Hagen, 

 that I was enabled to elucidate these facts. He lent me two typical 

 examples of Dione, property of the Cambridge Museum, for examina- 

 tion. They were caught many years ago by the late Prof. Agassiz in 

 Texas and were labelled hitherto " Arctia n. sp." 



According to the opinion expressed herein, I should classify our 

 Arctians for the present as follows : 



Arctia, Virgo L. 



" ab. Parthenice, Kirby. 

 '• ab. Intermedia, Str. 



var. Stretchii, Gr. 

 " Saundersii, Gr. 

 " Rectilinea, Tr. 

 " Persephone, Gr. 



ab. Anna, Gr. 

 " Nais,,Dru. 



v. Phalerata, Harr. 

 " Decorata, Saund. 

 " Figurata, Dru. 



V. Celia, Saund. 



V. F. pallida, Strk. 



V. Quadrinotata, Strk. 



V. Excelsa, Neum. 



V. Phyllira, Dru. 



