Robertson — Flowers and Insects. 177 



pura Say ?, s.; (26) Andrena pulchella Rob. JS s., freq.; (27) A. aliciae 

 Eob. ?,s.; Scoliidae: (28) Scolia bicincta F., s. 



Diptera — Bombylidae : (29) Exoprosopa fasciata Mcq., s.; (30) Anthrax 

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

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

 toma Will., s.; Syrphidae: (35) Allograpta obliqua Say, f. p.; (36) Eristalis 

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



Lepidoptera — Bhopalocera: (38) Danais archippus F.; (39) Papilio 

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

 egeremet Scud. — all s. 



Heliopsis laevis Pers. — H. heUanthoides (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: — 



Hymenoptera — Apidae : (1) Melissodes perplexa Cr. <?, s.; (2) M. col- 

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

 <?$, s.; (5) Ceratina dupla Say $, s.; (6) Megachile brevis, Say tf , e., 

 freq.; (7) Coelioxys altilis Cr. ^$, s.; (8) Epeolus lunatus Say J 1 ?, s., 

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

 sonii Rob. <j\ 8.; (12) Phileremus heliopsis Rob. tf, s.; (13) Calliopsis 

 labrosus Rob. J 1 ?, s. &c. p.; (14) C. rugosus Rob. tf, s., freq. ; Andre- 

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

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

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

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

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

 Scolia bicincta F., s. 



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

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

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

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

 Eristalis transversus Wd. — all s. 



Lepidoptera — Bhopalocera: (35) Phyciod es tharosDru.; (36) Thecla- 

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

 F.— all s. 



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



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



Eudbeckia laciniata L. — The stems grow two or three 

 metres high, are considerably branched and bear numerous 

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



