1919] Morse — A List of the Orthoptera of New England 23 



Introduced Species which have estabHshed themselves for longer 

 or shorter periods. 



11. German Roach, Croton-bug, Blattella germanica Linne. 

 Domiciliary. Probably occurs throughout New England under 

 artificial conditions of constant heat, moisture, and food, in houses, 

 shops, etc. Adults and young at all seasons. Locally abundant 

 if not checked. 



12. Oriental Roach, Blatta orientalis Linne. 



Much less common than the preceding; found under the same 

 conditions. 



13. American Roach, Periplaneta americana Linne. 



Locally plentiful under the same conditions as the preceding but 

 less generally established. Our largest common roach. 



14. Australian Roach, Periplaneta australasioe Fabricius. 



Occasionally becomes established in greenhouses, etc. Taken 

 in Maine, Massachusetts, and Connecticut. 



15. Surinam Roach, Pycnoscelus surinamensis Linne. 



Remarks under preceding apply equally well to this. Recorded 

 from Massachusetts and Connecticut. 



Exotic species from West Indies, Central or South America, in- 

 troduced with tropical fruit; adventive, liable to occur at 

 any time or in any place where such merchandise is unpacked. 



16. Nyctihora laevigata Beauvois ("sericea'" of authors). 

 Female, Orono, Me., May 16, 1889, bananas (Me. exp. sta.). 



Female, Manchester, N. H. (Miss Susy C. Fogg) . Male, Boston^ 

 Mass., Feb. 20, 1887 (F. H. Sprague). Natick, Mass., summer, 

 1901, fruit store (A. P. M.). Female, Springfield, Mass., Aug' 

 17, 1898 (C. Ladd). Wellesley, Mass., fall, 1899,— nymph, rel 

 corded by Scudder (List, Psyche 1900, 100) as "Eurycotis, pos_ 

 sihly finschiana Sauss." 



17. Nyctihora noctivaga Rehn {" holosericea") . 

 Wellesley, Mass., Jan. 15, 1904, bananas; adult. Young in 

 various stages: Dalton, Mass., Jan. 2, 1899 (E. A. Halle). Hyde 

 Park, Mass., Oct. 1, in house (Miss M. E. Cherrington) . Fram- 



