March, 1910.] BUENO : WESTCHESTER HeTEROPTERA. 27 



Subfamily Alydin^. 

 Genus MEGALOTOMUS Fieb. 



37. M. quinquespinosus Say. 



White Plains, July lo, Sept. 6 and 26. 



Genus ALYDUS Fabr. 



38. A. eurinus Say. 



39. A. pilosulus H. S. 



The latest date for these in White Plains is Oct. 12. 



40. A. conspersus Mont. 



White Plains, June 6, Sept. 4. 



Subfamily Corizin^. 



Genus CORIZUS Fall. 



41. C. lateralis Say. 



White Plains. Common in spring and late summer. 



42. C. nigristernum Sign. 



White Plains, August and September; nymphs as late as the 26th 

 of the latter month. 



Subfamily Berytin^. 



Genus NEIDES Latr. 



43. N. muticus Say. 



White Plains, July 10, adult and nymphs in last stage; July 18, 

 nymph in last instar; Aug. 15 and 28, Sept. 6. In shrubbery at the 

 edges of woods. 



Genus JALYSUS Stal. 



44. J. spinosus Say. 



White Plains, April 4, dead under a stone ; June 6, Sept. 26. 



Family LYG^ID^. 

 Subfamily Lyg^in^. 



Genus LYG.S:US Fabr. 



45. L. kalmii Stal. 

 White Plains, July 10. 



Genus NYSIUS Dallas. 



Since the date of the previous paper, a number of changes have 

 been made in the nomenclature of this sfenus. Van Duzee has 



