OF WASHINGTON. 133 



4. Setodes grandis: male genitalia. 



5. Hydropsyche minuscula: male genitalia. 



6. Phryganomyia obscura: male genitalia and palp. 



7. Rhyacophila termindta: male genitalia. 



8. Notidobia assimilis: male genitalia. 



9. Psychomyia mcesia: hind wings. 



10. Lepidostoma stigma: wings. 



11. Tri&nodes frontalis: male genitalia. 



12. Stenophylax minusculus: male genitalia and palp. 



13. Parachiona pilosa: male genitalia. 



14. Ecclisomyia conspersa: male genitalia and palp. 



15. Psychomyia mcesta: female genitalia. 



16. Rhyacophila torva: male genitalia. 



17. Plectrocnemia australis: female genitalia. 



18. Ecclisomyia maculosa: hind wing. 



19. Limnephilus oslari: female genitalia. 



20. Neuronia inornata: palp and claspers. 



21. Brachycentrus similis: male genitalia. 



22. Pycnopsyche guttifer: male genitalia. 



23. Setodes autumnalis: male genitalia. 



24. Setodina parva: head and palp. 



25. Pycnopsyche similis: male genitalia. 



26. Setodina parva: wings. 



The following papers were presented for publication. 



NOTES ON UNITED STATES ORTHOPTERA, WITH THE 

 DESCRIPTION OF ONE NEW SPECIES. 



By A. N. CAUDELL. 



In June, 1905, Dr. J. Hornung, of Menlo Park, Cal. sent to 

 the National Museum several specimens of a large black earwig 

 for determination. These proved to be Chelisoches morio 

 Fab., an insect hitherto unknown from the United States. 4 

 Correspondence with the collector elicited the information that 

 they were taken some miles from Menlo Park in peach trees. 

 They are probably importations from the Hawaiian Islands, 

 where the species is common. 



On May 18, 1906, Mr. Douglas demons found a single 

 specimen of the small cockroach Holocompsa nitidulus Fab., 

 in Washington, D. C. It was crawling on cotton batting from 



a ln 1900 (Ann. Soc. Ent. Belg., XLIV, p. 51) Burr records it as ques 

 tionably occurring in North America. 



