1909] Graenieher, Wisconsin Flowers and Their Pollination. 21 



sake of brevity therefore, and in order to avoid unnecessary repi- 

 tition I have supplied the name of each insect with a number as it 

 appears in the following list, and it will be represented by its 

 number in the list of visitors connected with the account of each 

 species of Composite in the second part oi this paper. 



A. HYMENOPTERA. 



Apidse: (1) Apis mellifera L; (2) Bombus virginieus Oliv. ; (3) 

 B. vagans Sm. ; (4) B. consimilis Cress.; (5) B. edwardsii Cress.; (6) 



B. afflnis Cress.; (T) B. pennsylvanicus De G. ; (8) B. terricola Rirby ; 

 (9) B. amerieanonim Fabr. ; (10) B. perplexus Cress.; (11) B. terna- 

 rius Say; (12) B. juxtus Cress.; (13) B. separatus Cress.; (14) B. 

 auricomus Rob.; (15) Psithyrus variabilis Cress.; (16) P. laboriosus 

 Fabr. (17) Ceratina dupla Say ; (18) Clisodon terminalis Cress. ; (19) 

 Melissodes agilis Cress.; (20) M. trinodis Rob.; (21) M. nivea Rob. ; 

 (22) M. obliqua Say: (23) .1/. cnici Kob. ; (24) M. rustiea Say; (25) 

 Calioxys oetodentata Say; (26) C. sayi Rob.; (27) C. texana Cress.; 

 (28) C. rufitarsis Sm. ; (29) C. ribis Ckll. ; (30) C. lucrosa Cress.; (31) 



C. moesta Cress.; (32) C. modesta Sm. : (33) Megachile pugnata Say; 

 (34) M. iQtimanus Say; (35) M. infragilis Cress.; (36) M. mendiea 

 Cress.; (37) M. addenda Cress.; (38) J/, breris Say; (39) M. motiti- 

 vaga Cress.; (40) M. mueida Cress.: (41) fferiades earinatus Cress.; 

 (42) Aleidamea simplex Cress.; (43) Aiidronicus eylindrieus Cress.; 

 (44) Osmla atriventris Cress.; (45) 0. distinctQ Cress, ; (46) Anthidium 

 jugatoriunr Say ; (47) Stelis firderalis Sm. ; (48) 8. lateralis Cress.; 

 (49) 8. sexmaculata Asbm. ; (50) 8. subemarginata Cress.; (51) Epe- 

 olus bifaseiatus Cress.; (52) Arggrosejenis minima Rob.; (53) Triepeo- 

 lus coneolor Rob.; (54) T. donatus Sm. ; (55) T. peetoralis Rob.; (56) 

 T. helianthi Rob.: (57) T. eressonii Rob.; (58) Nomada pilosula Cress.; 

 (59) N. artieulata Sm. ; (60) N. vincta Say: (61) A. placida Cress.; 

 (62) N. rhodoxantha Ckll. ; (63) N. grcenicheri Ckll.; (64) V. sphwro- 

 gaster Ckll. ; (65) N. simplex Rob.; (66) N. denticulata Rob.; (67) y. 

 eressonii Rob. ; (68) 2V T . .s«y/ Rob. ; (69) .Y. nVnm Cress.; (70) C&WopsiS 

 andreniformis Sm. ; (71) Panurginus rudbecJciffi Hon.; Andrenidae: (72) 

 Maeropis morsei Rob.; (73) Andrena multiplicata Ckll.; (74) A. fti'p- 

 potes Rob.; (75) A. forbesii Rob.; (76) .1. sigmundi Ckll.; (77) A. 

 crythrogastra Ashm. ; (78) A. carlini Rob.: (79) A. vicina Sm. ; (80) 

 4. nubecula Sm. : (81) A. nasonii Rob.; (82) 4. fragilis Sm. ; (83) A. 

 comm.oda Sm. ; (84) A. geranii Rob.; (85) A. milwaukeensis Gram.; 



