470 Trans. Acad. Sci. of St. Louis. 
De G. 8, s.; (5) B. americanorum F. (8, s., ab.; (6) B. virginicus Oliv. 2 
8, 8.; (7) Melissodes sp. 9, s.; (8) M. coloradensis Cr. 9, 8. and c. p.; (9) 
M. obliqua Say ?, s. and c. p., freq.; (10) M. perplexa Cr. 9, s. and ¢. p., 
freq.; (11) M. dentiventris Sm. 9, s. and c. p., freq.; (12) M. aurigenia Cr. 
2,8. and c. p., ab.; (18) M. desponsa Sm. 9, s. and c. p.; (14) Megachile 
latimanus Say §'@, s. and c. p., ab.; (15) M. inimica Cr. 2, 8.; (16) M. 
brevis Say 9,8. andc. p.; (17) M. optiva Cr. 9,8s.; (18) Coelioxys dubitata 
Sm. 9,8.; (19) caretel remigatus F. 9,8.; (20) E. mercatus F. 9, s., freq.; 
(21) Nomeda vincta Say (9, 8s., freq.; (22) Calliopsis illinoensis Cr. 9, Ss. 
and c. p.;, (23) C. Solidnganto Rob. 9, s.; (24) Panurgus autumnalis Rob. 
(MS) 9, 8s. and c. p., freq.; (25) Andrena ee Rob. f'Q, 8. and ¢. p., 
“ ; (26) A. pulchella Rob. 9,s. and c. p., ab.; (27) Halictusligatus Say 9, 
and c. p.; (28) Agapostemon viridula Asi Ey s.; Bembecidae: sos Bem- 
wae fabiNtpennis Cr., s.; Sphecidae: (30) Priononyx atrata Lep., 
Diptera — Bombyl iitae': (31) Systoechus et Lw., freq. ; es Sparno- 
polius fulvus Wd., ab.; (83) Exoprosopa decora Lw.—alls. ; Syrphidae: 
(34) Syrphus daictioaaus Wd.; (35) sietibaitS: pe L.; (86) E. latifrons 
Lw., ab.; (37) E. transversus Wd.; (38) Helophilus latifrons Lw. —alls 
and f. p.; Tachinidae: — Sp., 8.; Mueetine: (40) Lucilia cornicina F., 8.; 
Anthomyidae: (41) sp., 
Lepidoptera — Hhimioiane: (42) Danais archippus F., freq.; (43) Eupto- 
ieta claudia Cram.; (44) Argynnis cybele F.; (45) Pyrameis cardui L., freq.; 
(46) P. huntera F.; (47) Papilio philenor tis (48) Meganostoma cxesonis 
Stoll; (49) Colias philodice Gdt.; (50) Pyrgus tessellata Scud.; Heterocera 
(51) Scepsis fulvicollis Hbn.; (82) Utetheisa bella L.; (53) Plusia simplex 
Gn. —all 
Coleoptera — Lampy Pidiné= (54) Chauliognathus pennsylvanicus DeG.; 
rysomelidae : het Diabrotica longicornis Say; (56) D. 12-punctata 
Oliv. —all f 
HELIANTHUS stRUMOsUS L.— The heads expand five or six 
centimetres. The disc — measure six millimetres in 
length. 
This Helianthus blooms from July 21to September 3. The 
following visitors were taken on the flowers on August 22 
and 24:— 
Megachile pian Cr. 3; 8. 8.5 (5) Pant remigatus F. 2, 8. ; (6) E. e 
catus F. o', 8.; (7) ek see Rob. cus ) 2, 8.3 Andrenidae: ( ) 
Lep., 
Diets. Beebe: (10) Anthrax halcyon Say, s.; (11) Systoechus 
Lw.; (12) Sparnopolius fulvus Wd.—all s 
Lepidoptera — Rhopalocera: (18) Phyciodes nyetehe D.— H.; (14) Colias 
philodice Gdt.— both s 
