570 BULLETIN UNITED STATES GEOLOGICAL SURVEY. [Vol.vi. 



Ceema Hiibn. (1818). 



Cora Hiibn., Zutr. 14, figs. 59, 60. Canada to Georgia. Is this Guen^e's 

 Charipterafesta? Guenee does not know this; he makes hebraea the 

 type of Grammophora, but thinks cora may prove congeneric, and so 

 includes it. Gramniophora falls before Polygrammate according to the 

 rule of priority. The difference seems to me unessential between this 

 and Bryojyhila, but Cerma cora and Harrisimemna trisignata are struct- 

 urally distinct and differ from BryopMla or Polygrammate. The dark 

 lines on the paler ground of the primaries give rise to the idea of rela- 

 tionship, which has caused authors to use Grammopliora in a wide and 

 loose sense. I do not see how the term can be retained for any spe- 

 cies, but if used it must be at the expense of Hllbner for his species. 

 Walker incorrectly referred trisignata to it, a moth whose habits, 

 larva, and structure are quite peculiar, and unlike any other member 

 of the group. Harris called the species a IJ^'otodontian ; his name, 

 though given earlier, was not issued until after Walker's, in his pos- 

 thumous papers. I have named the genus after him, and to still further 

 ally his name with the insect, which he was the first to at all ade- 

 quately observe, I propose to call the species Harris^ Zigzag moth, 

 in the vernacular. 



Polygrammate Hiibn. (1816). 



Hehraicum Hiibn. Zutr. 1, 1 0, figs. 25-6 ; Grammopliora hebrcea Guen., 

 Noct. 1, 30, pi. 3, fig. 5. Middle States. 



MiCROCOELiA Guen. (1852). 



Fragilis Guen,, E"oct. 1, 34. Canada to Middle States. 



BipMeroides Guen., Noct. 1, 34 ; Grote, Proc. Ent. Soc. Phil. 3, 78, pi. 2, 



fig. 2 ; G. & K., Tr. Am. Ent. Soc. 2, 195, pi. 3, fig. 69. 

 var. Obliterata Grote, Proc. Ent. Soc. Phil. 3, 79; G. «& E., Tr. Am. 



Ent. Soc. 2, 195, pi. 3, fig. 70. Canada to Alabama. 



Bryophila Tr. 



Lepidula Grote, 6th Ann. Eep. Peab. Ac. Sci. 27. Canada to Middle 



States. 

 fCorticosa Guen., Noct. 1, 30. 



" Size of glandifera. Fore wings dense, squamous, varied with green- 

 ish white, light brown and black, and the lines all black. Basal space 

 of the first color, with the half- line and a spot on internal margin black. 

 Median space brown gray, slightly mixed with fulvous (fauve) on the 

 disc ; terminal space white, spotted with brown. Subterminal line very 

 black, and very much waved, and nearly i)arallel with the transverse 

 posterior line. Fringe whitish, cut with black marks. Hind wings na- 

 creous white, with a blackish shade commencing at anal angle and 

 hardly reaching over half of the border. Abdomen white beneath. Body 



