1893-] ENTOMOLOGICAL NEWS. 33 



SYNONYMIC AND STRUCTURAL NOTES. 



By HARRISON G. DYAR. 



The genera of the Notodontidae with a tuft on the internal 

 margin of primaries (excluding Lanassa) may be distinguished 

 as follows: 



Primaries with an accessory cell. 



Antennae of c? pectinated; eyes naked Notodonta 



Antennae simple; eyes hairy Lophopteryx. 



Primaries without accessory cell. 



Antennae of rf pectinated . . Pheosia. 



Antennae simple, ciliate Lophodonta. 



According to these characters the species fall in as below: 



Notodonta Ochs. Pheosia Hub. 



N. stragula Grt. P. dimidiata H.-S. 



N. pacifica Behr. rit/iosa Pack. 



N. elegans Strk. californica Str. 



vai . grisea Strk. P. portlandia Hy. Edw. 



notaria Hy. Edw. deschcrei Neum. 



N. georgica H.-S. P. simplaria Graef. 



P. basitriens Walk. 



Lophopteryx Steph. Lophodonta Pack. 



L. americana Harv. L. ferruginea Pack. 



L. angulosa S. & A. 



According to superficial resemblance in size, shape and pattern 

 of markings they would stand: 



Notodonta. Pheosia. 



N. stragula. P. dimidiata. 



N. pacifica. P. portlandia. 



N. georgica. P. elegans. 



N. basitriens. var. grisea. 



Lophopteryx. Lophodonta. 



L. americana. L. ferruginea. 



L. angulosa. 

 L. simplaria. 



It will be noticed that neither of these arrangements has been 

 used in any of our lists, and it would appear as if neither struc- 

 ture nor superficial resemblance was considered essential for ge- 

 neric definition. 



I have not been able to examine Drynobia tortuosa Tepper. 



The species associated under Hctcrocuinpa are much alike in 

 structure, but their larvae differ so much that it may be thought 

 advisable to break up the genus. This might be done as follows: 



Heterocampa Doubleday. 

 H. astarte Douhl. (type). 

 1/icniis Harr. 

 van a Walk. 



With this would go obliqua, lunata, siibrotata and ccltipluiga. 



