170 BULLETIN 123, UNITED STATES NATIONAL MUSEUM. 



Hind wing with 8 veins; 6 and 7 closely approximate at base; 3 

 and 4 stalked. 



Male genitalia with harpe sickle shaped; neck densely spined; 

 cucullus large; sacculus reduced, not strongly spined. Uncus rudi- 

 mentary. Socii developed; broad in proportion to their length; 

 roughly triangular. Gnathos free; weak. Aedoeagus short; 

 straight ; moderately stout ; cornuti a cluster of elongate spines. 



A small genus, most of the species of which are feeders on coni- 

 ferous trees. The spining on the neck of the harpe is appreciable 

 in all the species, but in the genotype and in ratzehurgiana it is less 

 dense and more hair like than in the other species. 



KEY TO THE SPECIES OF ZEIRAPHERA. 



1. Termen of fore wing vertical, slightly concave; dark markings shaded with 



greenish olivaceous (1) claypoleana, 



Termen of fore wing slanting and straight, not concave; no shading of 

 greenish olivaceous on fore wing 2 



2. Lighter area of fore wing ferruginous ochreous (2) ratzehurgiana. 



Lighter area of fore wing gray or grayish white 3 



3. Median pale area of fore wing narrow, and no wider on dorsum than costa. 



(4) fortunana. 

 Median pale area of fore wing wide, and wider on dorsum than costa. 



(3) diniana. 



1. ZEIRAPHERA CLAYPOLEANA (Riley). 



(Fig. 285.) 



Proteotcras (?) claypoleana Riley, Amer. Nat., 1882, p. 913. 



Steganoptycha claypoleana Claypole, Psyche, vol. 3, 1882, p. 364. — Riley, 



Papilio, vol. 3, 1883, p. 191.— Packard, Fifth Report U. S. Ent. Com., 1890, 



p. 654.— LiNTNEB, Rept. N. Y. State Ent, vol. 12, 1897, p. 214, 

 Sericoris instrutana Claypole (Not Clemens), Proc. Amer. Assn. Adv. Sci., 



vol, 30, 1881, p. 269 ; Amer, Nat., vol. 15, 1881, p. 1009. 

 Epinotia claypoleana Fernald, in Dyar List N. Amer. Lepid., no. 5232, 1903. 

 Enarmonia claypoleana Barnes and McDunnough, Check List Lepid. Bor. 



Amer., no. 7156, 1917, 



This species is placed here provisionally. In genitalia structure 

 it is true Zeivapkera while in wing shape, pattern, color and larval 

 habit it would go better with Profeoteras than with the coniferous 

 feeders that constitute the typical ZeirapTiera. It is in fact a primi- 

 tive Proteoteras that has not yet developed the advanced genitalia 

 or secondary sexual characters and forms the link between Zeiraphera 

 and Proteoteras. It should rightly have a separate generic designa- 

 tion ; but I have been unable to find a character to separate and dis- 

 tinguish it. For the present it may remain in Zeiraphera with which 

 it has many affinities. It certainly can not be included in Proteoteras 

 as it possesses none of the structural characters that definitely char- 

 acterize that group. 



