472 Trans. Acad. Sci. of St. Louis. 
Lep. 9, s. and c. p.; (15) H. ligatus Say ¥, s.; (16) Augochlora coins Rob. 
Q, 8. and c. p.; (17) Agapostemon viridula F. 9, s.; Bembe +18) 
Monedula pictifrons Sm., s.; Sphecidae; (19) Ammophila ers eh 8., 
freq.; (20) A. intercepta EAs s., freq.; (21) A. pictipennis Walsh, 
Diptera — Bombylidae: (22) Systoechus vulgaris Lw.; (23) a 
parvicornis Lw.; Syrphidae: (24) Eristalis transversus Wd. —all s. 
Lepidoptera — Ctenuchidae: (25) Scepsis fulvicollis Hbn., s. 
Coreopsis paLmATA Nutt. — The plants grow in small, thin 
patches ; the stems rise about six decimetres high and bear 
conspicuous yellow heads about four centimetres wide. The 
ray florets are neutral, those of the disc, hermaphrodite. 
The corollas are five or six millimetres long, the tube 
being very narrow below. 
I have noted the plant in bloom from June 17 to July 8. 
The visitors were observed on June 27, 29 and July 1: — 
Hymenoptera — Apidae: (1) Bombus americanorum F. 8, s.; (2) Melis- 
sodes confusa Cr. ¥', s.; (3) Ceratina dupla Say 9, s., freq.; (4) Megachile 
brevis Say 2, s., freq.; (5) Nomada annulata Sm. 9, s.; (6) Calliopsis 
albitarsisCr. 9,s.; (7) C. andreniformis Sm. 9,8.; Andrenidae: (8) Halictus 
ligatus Say ¢'Q,s. and c. p., freq.; (9) H. fasciatus Nyl. 9, s.; (10) H.- 
pilosus Sm. 9, s. and c. p.; (11) Augochlora similis Rob. 9, s. and ¢. p.; 
Eumenidae: (12) Odynerus anormis Say; Sphecidae: (13) Ammophila gryphus 
Sm.; (14) A. vulgaris Cr.; (15) A. intercepta Lep.; (16) A. pictipennis 
Walsh ; (17) Priononyx thomae F.; Braconidae: (18) Toxoneura abdominalis 
ipieta Stratiomyidae: (19) Odontomle nsielibisg Lw.; Conopidae: 
aa Zodion fulvifrons Say; Muscidae: (21 ee tomoxys calcitrans L.; (22) 
Lucilia sp.; Muscidae lsh tt (23) sp 
8. 
Lepidoptera — Rhopaloc (24) Pivelities tharos Dru.; (25) Colias 
philodice Gdt.; (26) Sonata cernes B.— ] 
Coleoptera— Cerambycidae: Typocsiis sinuatus Newm.; Mor- 
(27 
dellidae: (28) Mordella scutellaris F.; Meloidae: (29) sp. — all f. p. 
CorEopsiIs TRIPTERIS L.— The stems grow from fifteen to 
twenty-five decimetres high and are terminated by corymbose 
clusters of small heads with yellow rays and dark-purple 
centers. The rays are neutral. The tubes of the disc florets 
are about six millimetres long, but a proboscis four millimetres 
long can obtain some of the nectar. The plants are generally. 
scattered so that they do not attract insects in great “numbers. 
This species blooms later than the preceding — July 
26 to September 26. The visitors were observed August 22, 
24 and 30 :— 
