1896] FLOWERS AND INSECTS 165 
pose that Sassafras bloomed in the last of July, what would there 
be to keep it from being visited by several of the nineteen species 
of Pompilide flying at that time, or by many other short-tongued 
Aculeata which are then very abundant? In the south the lower 
Aculeata begin to fly earlier, and I should expect Sassafras, and 
many other early flowers with exposed or slightly concealed 
nectar, to show an increase in the proportion of these insects as 
we move in that direction. 
The following insects were taken on the flowers on April 
27th and 2oth: 
HYMENOPTERA — Andrenide : (1) Halictus cressonii Rob., ¢; (2) H. con- 
fusus Sm., 2, s. & c. p.; (3) H. stultus Cr., ¢; (4) Andrena sp. ¢; (5) A. ity 
noensis Rob., 3; (6) A. hippotes Rob., 3; Pompilide ; (7) P riocnemis Conte 
Say ; Chalcidide : (8) Eurytoma sp.; /chneumonide : (9) Pimpla annulipes Br.; 
(10) Idiolespa anilis Grav.: (11) Ophion bifoveolatum Br.; Zenthredinide : 
(12) Hylotoma mcleayi Leach; (13) Monophadnus medius Norton. 
orea aldrichii Twns.; (29) Gonia frontosa Say ; (30) Micropalpus fulgens 
Mg.; (31) Phorocera edwardsii Will.; Sarcophagide : (32) Cynomyia mortu- 
orum L., freq.; (33) Sarcophaga sp.; (34) S. cimbicis Twns.; Muscidae ‘ (35) 
P-; (36) L. caesar L.; (37) L. cornicina F.; (38) Morellia micans 
 ab.; (42) P. fusciceps Zett., ab.; 
: (43) Scatophaga squalida Mg.; Oscinide : (44) Chlorops trivialis 
“3 Agromyzide@ : (45) Agromyza latipes Mg.; (46) A. eneiventris Fil. 
COLEOPTERA ~—Lampyride : (47) Telephorus bilineatus Say, freq.; Zdem- 
erid@ : (48) Asclera puncticollis Say. ; 
"EMIPTERA — Corimelenida : (49) Corimelena pulicaria Ger.—all only 
Sucking, except No. 2. 
On the literature of Sassafras see: ; 
¢ (1) Hildebrand, Geschlechtsverteilung bei den Pflanzen 9. 1867. eager 
“Mssafras : (2) Kerner, Pflanzenleben 2: 297. 1891. Oliver, translation, 28 
1895 — 7. Sassafras. 
CaRunvitie, ILLINo!s. 
