Robertson — Flowers and Insects. 177 



pura Say ?, s.; (26) Andrena pulchella Rob. (^, 8., ireq.; (27) A. aliciae 

 Bob. 9, s.; Scoliidae: (28) Scolia bicincta F., s. 



BipteTSL—Bombylidae: (29) Exoprosopa fasciata Mcq., 8. ; (30) Anthrax 

 halcyon Say, s. ; (31) A. alternata Say, f. p. ; (32) Systoechus vulgaris Ltv., s., 

 freq. ; (33) Sparnopolius fulvus Wd., s.; Conopidae: (34) Zodion leucos- 

 toma Will., 8.; Syrphidae: (35) AUograpta obliqua Say, f. p. ; (30) Eristalis 

 transversus Wd., f. p.; Tachinidae: (37) Jurinia smaragdina Mcq., s. 



Lepidoptera — i?/iopa?ocera: (38) Danais archippus F.; (39) Papilio 

 philenor L.; (40) Pamphila cernes Bd.-Lec; (41) P. otho S. & A. Tar. 

 egeremet Scud.— all s. 



Heliopsis laevis Pers. — II. helianthoides (L.) B. S. P. — 

 The plants are common, grow one metre, or more, high, and 

 bear numerous orange-yellow heads, which expand about 5 

 cm. The ray florets are pistillate. The disc florets are per- 

 fect, yield nectar and pollen, and have tubes 3 to 4 mm. long. 

 The blooming time is from July 1 to Sept. 28. The following 

 visitors were taken July 16, 31, Aug. 1, 3, 6, 7, 12, 13, 15, 

 17, 21, 22; Sept. 10, 12 : — 



IlymenopteTa. — Apidae : (1) Melissodes perplexa Cr. J*, s.; (2) M. col- 

 oradensis Cr. (^, s.; (3) M. obliqua Say (^, s.; (4) M. dentiventris Sm. 

 (J* 9, s.; (5) Ceralina dupla Say $, s. ; (6) Megachile brevis, Say (j^, s., 

 freq.; (7) Coelioxys altilis Cr. cf$, 8.; (8) Epeolus lunatus Say ^f $ , s., 

 freq.; (9) E. fumipennis Say J*, s.; (10) E. concavus Cr., 8.; (11) E. cres- 

 sonii Kob. g", s.; (12) Phileremus heliopsis Rob. (^, s.; (13) Calliopsis 

 labrosus Rob. J^?, s. & c. p. ; (14; C. rugosus Rob. (^, s., freq.; Andre- 

 nidae: (15) Halictus pectoralis Sm. 9, c. p.; (16) H. ligatus Say, 9, s.; 

 (17) H. pruinosus, Rob. 9, s. &c. p.; (18) H. obscurus Rob. ^j^, s.; (19) 

 H. pilosus Sm. 9, s. & c.p. ; (20) Augochlora labrosa Say 9,s. &c. p.; (21) 

 A. pura Say, 9,s. ; (22) Andrena aliciae Rob. 9> s.; Philanthidae : (23) 

 Cerceris sp.; Sphecidae: (24) Ammophila vulgaris Cr. 8. ; Scoliidae: (25) 

 Scolia bicincta F., s. 



Diptera — Empidae: (26) Empis clausa Rob. (MS.), freq.; Bomhylidae: 

 (27) Exoprosopa fasciata Mcq. ; (28) E. fascipennis Say. ; (29) Anthrax 

 halcyon Say; (30) Systoechus vulgaris Lw. ; (31) Sparnopolius fulvus Wd.; 

 (32) Geron calvus Lw., freq.; (33) G. rufipes Mcq.; Syrphidae: (34) 

 Eristalis transversus Wd. — all s. 



Lepidoptera — Rhopalocera: (35) Phyciod es tharos Dru.; (36) Thecla- 

 melinus Hbn.; (37) Pieris protodice Bd.-Lec; (38) Pholisora catullus 

 F.— all 8. 



Coleoptera — Lampyridae: (39) Chauliognathus pennsylvanicus De G., s. 



Hemiptera — Lygaeidae: (40) Lygaeus turcicusF., s. 



EuDBECKiA LACiNiATA L. — The stsms grow two or three 

 metres high, are considerably branched and bear numerous 

 heads with yellow discs and rays. The heads expand 8-9 



