ROBERTSON — FLOWERS A- INSECTS, ASCI,. TO SCROPH. 571 



Coleoptera. — Scarabceida:^ (113) Trichius piger F. CerambycidcB^ 

 (114) Typocerus sinuatus Newm. Rhifiphoridcr. (115) Rhipiphorus 

 limbatus F. 



Of the 58 species bearing pollinia of this Asclcpias^ 53 have 

 the corpuscula attached to the hairs of their legs or to the pul- 

 villi, 10 have them on their claws, and 13 have them on their 

 tongues. 



Asclepias incarnata L. — The following visitors were taken 

 on 24 days, between July 22 and Aug. 21 : 



Hymenoptera. — Afid<s, (i) Apis mellifica L. ^ , h.t., ab., one dead ; 

 (2) Bombus virginicus Oliv. J ^. h.c.t. ; (3) B. vagans Sm. %. h.c.t; 

 (4) B. americanorum F. 'J, 9 ^ . b.c.t.; (5) B. pennsjlvanicus DeG. -^ 9 

 g , h.c. ; (6) B. scutellaris Cr. -^ ^ , h.c.t. ; (7) B. separatus Cr, -^ 9 g , 

 h.c, very ab.; (8) Entechnia taurea Say -^ , h. ; (9) Megachile brevis 

 Say % 9. AndretiidcB, (10) Collates latitarsis Rob. 9, h.c.t., dead; (11) 

 Halictus coriaceus Sm. (^, h.t.; (12) H. confusus Sm. %\ (13) Augo- 

 chlora pura Say '^ , t. VespidcE, (14) Vespa sp., h.c.t. ; (15) V. maculata 

 L. ; (16) V. germanica F., h.; (17) V. cuneata F., h.c.t. ; (i8) Polistes 

 pallipes Lep., h.t. ; (19) P. metricus Say, h.c. ; (20) P. rubiginosus Lep., 

 h.c. EumenidcB, {21) Eumenes fraternus Say ; (22) Odynerus arvensis 

 Sauss., h.c.t. Crabronidce, (23) Oxybelus packardii Rob., c. Philan- 

 t/tid(E. (24) Cerceris clypeata Dahlb., h.c; (25) C. compacta Cr., h.c; 

 (26) C. bicornuta Guer. h.c.t. JVyssonidce, (27) Hoplisus rufoluteus 

 Pack., h. Bembecidcs, (28) Megastizus brevipennis Walsh, h.; (29) 

 Bembex fasciata F., h. ; (30) B. nubillipennis Cr., h. Larridce, (31) 

 Tachytes sp., h. ; (32) T. distinctus Sm., h. ; (33) T. validus Cr.. h.t.; 

 (34) T. pepticus Say, h, SfhecidcB. (35) Pelopoeus cementarius Dru., 

 h.. one dead; (36) Sphex ichneumonea L., h. ; (37) S. pennsylvanica L., 

 h.c.t.; (38) Priononyx atruta Lep., h. ; (39) P. thomie F., h. Pompili- 

 dcE^ (40) Pompilus atrox Dahlb., h. ; (41) Priocnemis fulvicornis Cr. ; 

 (42) P. unifasciatus Say, h. ; (43) Agenia accepta Cr., h. Scoltida', (44) 

 Myzine sexcincta F., h.c.t.; (45) M. interrupta Say, h.; (46) Scolia 

 bicincta F., h. 



Lepidoptera. — Rkopalocera, (47) Papilio philenor L., h.; (48) P. as- 

 terias F., h.c. ; (49) P. troilus L., h. ; (50) P. turnus L., h. ; (51) P. 

 cresphontes Cram.,h.; (52) Pieris rapse L., h.c. ; (53) Colias philo- 

 dice Godt.. h. ; (54) Danais archippus F., h. ; (55) Argynnis idalia Dru., 

 h. ; (56) A. cybele F., h. ; (57) Phyciodes tharos Dru.; (58) Pyrameis 

 atalanta L., h.c; (59) Limenitis disippus Godt., h. ; (60) Libythea 

 bachmanni Kirtl., h. ; (61) Pamohila peckius Kby. ; (62) P. cernes Bd.- 

 Lec, h. ; (63) P. verna Edw. ; (64) PholisoracatuUus F. ; (65) Eudamus 

 lycidas Sm.-Abb., h. ; (66) E. tityrus F. Pyralidce, (67) Scepsis fulvi- 

 collis Hiibn. •■■ 



