Flowers and Insects. XI

Abstract

On seven days, March 25th to April 29th, and Oct. i5th, I observed the following visitors , all sucking:-Hymenoptera-Apidw: (i) Apis mellifica L. M; (2) Cerat-ina dupla Say 8; (3) Osmia lignaria Say 8; (4) Nomada bi-signata Say 8; (5) N. luteola Lep. 8; Andrenidr: (6) Panur-gus? andrenoides Cr. 8; (7) Andrena sayi Rob. 8; (8) A. illinoensis Rob. ?; (9) A. flavo-clypeata Sm. 8; (io) A. cres-sonii Rob. 8?; (iI) A. forbesii Rob.S; (I2) Augochlora pura Say Y, ab.; (I3) Halictus lerouxii Lep. ?; (I4) H. ligatus Say ?; (I5) H. fasciatus Nyl.?; (i6) H. pilosus Sm.?; (I7) H. gra-cilis Rob.?; (i8) H. confusus Sm.8?; (I9) H. stultus Cr. ?; (20) Colletes inaequalis Say 8; Clzalcididw: (2I) Smicra torvina Cr.; IchneumnonidT: (22) Pimpla novita Cr. (deter-mined by Ashmead); Tenthredinidc: (23) Dolerus arvensis Say. Diptera-Mycetophilide: (24) Sciara sp.; Syrphidie: (25) Chilosia capillata Lw.; (26) Melanostoma obscurum Say; (27) Platychirus quadratus Say; (28) Syrphus ribesii L.; (29) S. americanus Wd.; (30) Mesograpta marginate Say; (31) Fristalis tenax L.; (32) E. aeneus F.; (33) E. dimidiatus Wd.; (34) Brachypalpus frontosus Lw.; (35) Syritta pipiens L.; Tachzinidce: (36) Gonia frontosa Say, ab.; (37) G. exul Will.; Sarcophagidw: (38) Cynomyia sp.; Muscidc: (39)