1 893-] 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 (^ pectinated; eyes naked Notodonta. 



Antennae simple; eyes hairy Lophopteryx. 



Primaries without accessory cell. 



Antennae of (J' pectinated Pheosia. 



Antennae simple, ciliate Lophodonta. 



According to these characters the species fall in as below: 



Notodonta Ochs. Phfeosia Hiib. 



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



N. paciuca Behr. rijiwsa Pack. 



N. elegans Strk. califomica Str. 



var. grisea Strk. P. portlandia Hy. Edw. 



notaria Hy. Edw. descherei Neum. • 



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



P. basitriens Walk. 

 Lophopteryx Steph. Lophodonta Pack. 



L. americana Harv. L. ferrnginea Pack. 



L. angolosa 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 tortiiosa Tepper. 



The species associated under Heterocampa 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 Doubl. (type). 

 ineiias Harr. 

 varia Walk. 



With this would go obliqiia, binata, siibrotata and celtiphaga. 



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