March, 1910.] BUENO : WESTCHESTER HeTEROPTERA. 31 



73. C. arcuata Say. 



White Plains, May and July. 



74. C. pergandei Heid. 



White Plains, May 15, June 12 and 30, on black alder. 



Genus LEPTOBYRSA Stal. 



75. L. explanata Heid. 



White Plains, June 6, nymphs; July 10, Aug. 28, ova; nymphs and 

 adults, Sept. 6 and 26. 



Genus GARGAPHIA Stal. 



76. G. tiliae "Walsh. 



White Plains, May 26. 



Genus PHYSATOCHILA Fieb. 



77. P. plexa Say. 



White Plains, June 12. Swept in marshy meadow. 



Superfamily NEPOIDEA Kirk. 

 Family NABID^. 



Genus PAGASA Stal. 



78. P. fusca Stein. 



White Plains, July 25, Aug. 22 and 28, nymph; Sept. 4, 26 and 27. 



Family GERRID^. 



Subfamily Veliin^e. 



Owing to a slip of the printer, all the species were put under 

 Rhagovelia. The correct division is as follows : 



Genus RHAGOVELIA Mayr. 



79. R. obesa Uhl. 



Genus MICROVELIA Westw. 



80. M. americana Uhl. 



81. M. capitata Guer. 



82. M. sp. (= pulchella Auctt. for N. Am. form). 



Subfamily Gerrin^. 



Genus GERRIS Fabr. 



83. G. remigis Say. 



Occurs throughout the county and state. 



84. G. conformis Uhl. 

 Mamaroneck, May 24. 



