Robertson — Flowers and Insects. 459 
rf. p.; Tachinidae: (27) sp.; (28) Hyalomyia purpurascens Twns., 
ae ; “093 Gymnosoma fuliginosa R. D.; (30) Cistogaster occidua WIk.; 
(31) 
(42) rence sp.; Trypetidae: (43) Trypeta humilis Lw., ab.; Sepsidae: 
(44) Sepsis sp.—all 
idoptera — Rhopalocera: (45) tet ace igronpnt aan ; (46) Colias 
philodice Gdt.; (47) Pamphila phylaeus Dru.; Hete : (48) Scepsis 
fulvicollis Hbn.; (49) Utetheisa bella L.; 15 ‘Heliothis. xriaigee Hbn.— 
alls 
Coleoptera — Coccinellidae: (51) Hippodamea parenthesis Say; Lam- 
pyridae: (52) Chauliognathus pennsylvanicus DeG.; Chrysomelidae; (53) 
Diabrotica longicornis Say, freq.; (54) D. 12-punctata Oliv., freq. — 
all f. p. 
Hemiptera — Capsidae: (55) Lygus pratensis L., s. 
ASTER NOVAE-ANGLIAE L.— The plants often grow in rather 
large patches and bear numerous showy heads with yellow 
discs and violet purple rays. The heads expand two and three 
centimetres. Nectar and pollen are supplied by the disc 
florets. The tubes of these measure three or four millimetres 
in length. 
The visitors observed October 2, 4, 7, 8 and 10 are as 
follows :— 
Hymenoptera — Apidae: (1) Apis mellificaL. 8, s.andc. p.; (2) Bombus 
americanorum F, 32 8, s. and c. p., freq.: (3) B. a Olivo) 83 
anit B. separatus Cr. ', s.; (5) Melissodes desponsa Sm. 9, 8s. and 
; (6) M. confusa Cr. 9,8. andc. p.; (7) M. perplexa Gf Q,s.and c. p.; 
(8) M. aurigenia Cr. 9, s. and c. p.; (9) Curate dupla Say Q, s.and c. p.; 
(10) Megachile ae Say 9,8. andc. p., freq.; (11) M. brevis Say 9, 
8. and ¢. p., freq.; (12) Calliopsis cueiinaanets m Rob. 9, ¢. p.; Andrenidae: 
(13) Andrena soltdagints Rob. 9, ¢. p.; (14) A. helianthi Rob. Q, ¢. p.; (15) 
Halictus parallelus Say 6’, s.; (16) H. ligatus Say G, 8.; (17) Colletes amer- 
icana Cr, 
Lepidoptera — Rhopalocera: (18) Danais archippus F.; (19) Phyciodes 
tharos Dru.; (20) Pyrameis cardui L.; (21) Pieris protodice B.— L. (22) 
Colias philodice Gdt., ab.; (23) Meganostoma caesonia Stoll; (24) Pamphila 
beckius Kby.; (25) P. shylacns Dru.; Heterocera: (26) Plusia simplex Gn.; 
(27) Heliothis armiger Hbn.— al 
Diptera—Conopidae: (28) Stylogaster piannulata Say, 8., freq.; Syrphidae: 
(29) Syrphus americanus Wd., f. p.; (30) Eristalis aoe us Wd., 8.; (31) 
E. latifrons Lw., s.; (3 2) E. tenax L., s. st f. p.; (33) E. aes Wwd., 
8.3 (34) Helophilus ‘similis sta .» 8.3 (85) tropiila mamillata Lw., 
