80 Bulletin of the Brooklyn Entomological Society Vol. XII 



NOTES ON SPECIES OF MIRID^ INHABITING ASH 



TREES (FRAXINUS) WIT^ THE DESCRIPTION 



OF A NEW SPECIES (HEMIP.).* 



By Harry H. Knight, Ithaca, New York. 



The writer has been gathering data on the Hfe history and 

 habits of Miridse during the past three seasons and finds that 

 the species breeding on ash trees are of particular interest. All 

 the speceis of Neohorns, Xenoborus and Tropidosteptes are con- 

 fined to ash trees (Fraxinus) as far as can be determined. Data 

 is here given on the occurrence of certain species in New York 

 with notes on the food habits and relative abundance of the 

 species. 



Tropidosteptes cardinalis Uhler. This species was found 

 breeding only on the white ash (Fraxinus americana) and occur- 

 ring in greatest numbers on the tender and succulent growth. 

 The writer also noticed that the adults soon leave the place where 

 they were reared and scatter to other more favorable growth for 

 depositing eggs. 



Records: June 7 to June 16, Ithaca, N. Y. ; June 2y, Honeoye 

 Falls, N. Y. ; June 12 to June 25, Batavia, N. Y. ; July 4-5, Four 

 Mile, N. Y., collected by the writer. June 20, Pine Island, New 

 York (Wm. T. Davis). 



Neoborus canadensis Van Duzee. This species was found on 

 Fraxinus americana in company with T. cardinalis and N. tri- 

 color on the Cornell Campus. The life cycle coincides very 

 closely with that of T. cardinalis but is found only in favored 

 spots. 



Records: May 31 to June 16, Ithaca, N. Y. ; June 20 to Aug. 

 24, Batavia, N. Y. ; June 27, Portage, N. Y., collected by the 

 writer. 



Neoborus geminus Say. Occurs on Fraxinus americana in 

 company with amoenus but found only during June and early 

 July. In the large series collected by the writer certain speci- 



* Contribution from the Department of Entomology of Cornell Uni- 

 versity. 



