Americana 



VOL. II, 



BROOKLYN. DECEMBER, 1886. 



NO. 9. 



Apparently new forms of N. American Heterocera. 



By Henry Edwards 



The following species which I believe to be unrecorded, are all in 

 my own collection, and have many of them stood for some years without 

 names. There are only one or two uniques among them, and I have 

 confidence that they will be found to be new to our entomological fauna. 



Family BOMBYCID^. 

 Daritis Thetis, Klug var. Howardi n. var. 



About 2 years ago, I received from my old friend Mr. Wilson How- 

 ard, two specimens of this magnificeat moth, which had been taken by 

 him in New Me.xico, I have delayed its description as Mr. R. H. Stretch 

 promised to make a figure of it for me. He has however since then had 

 his time taken up with other matters, and the figure has not come to 

 hand. I therefore think it best to call attention to this remarkable addition 

 to our fauna. 



The type of Z>. Thetis is figured by Klug in his Neue Schmett. pi. 

 IV, fig. I and 2, 1836, as an Eupr,pta, but Walker separated it and its 

 kindred species under the name u\' Bar His. I). Thetis is quite common 

 in some pans of Old Mexico, but there is considerable difference in the 

 form before us and it well deserves a varietal name. 



The ground color of the forewings is decidedly black, and not brown as in D. The- 

 tis, and the stripes and bands are of a clearer white and much broader. The lower 

 wings have a much larger white field, owing to the narrower margin, the ground 

 color of which is scarlet ia the place of orange with tlie blue lunules larger, and near- 

 ly touching the edge of the maryiiial band. The tibi.v are bright citron yellow, as in 

 the typical form. 



