CHARLES ROBERTSON 117 
Diptera (1)—Bombyli.: Bombylius atriceps. 
Lepidoptera (1)—Papilion.: Pontia fq. 
Mentha arvensis (14: 102—3).—Blooms July 17—October 7; 25 
visitors observed, August 13—September 16; Pol, W. 
Short-tongued Bees (1)—Halict.: Oxystoglossa confusa ¢. 
Other Hymenoptera (9)—Sphec.: Ammobia nuda, Isodontia 
apicalis, Sphex gracilis, vulgaris; Bembic.: Bembix nubillipennis; 
Scoli.: Elis interrupta, 5-cineta fq; Philanth.: Eucerceris; Pompil.: 
Pompiloides marginatus. 
Diptera (12)—Syrph.: Milesia, Syritta, Tropidia quadrata; 
Empid.: Parempis; Bombyli.: Exoprosopa fascipennis; Conop.: 
Conops xanthopareus; Tachin.: Archytas analis, aterrima ab; 
Dexi.: Ptilodexia, Seotiptera; Musc.: Lucilia sylvarum, Pseudo- 
pyrellia. 
Lepidoptera (2)—Papilion.: Pieris; Hesperi.: Ancyloxypha. 
Coleoptera (1)—Lampyr.: Chauliognathus pennsylvanicus ab. 
Monarda bradburiana (14: 108-11).—Blooms May 7—June 16; 
37 visitors observed, May 10—June 16; Ma, R. 
Birds (1)—Trochil.: Trochilus. 
Long-tongued Bees (14)—Ap.: Apis ab; Bomb.: Bombias auri- 
comus 9, fq, separatus 2, fq, Bombus americanorum Q, ab, impatiens 
2 ¥, ridingsii %, sc; Ceratin.: Ceratina 9, sc, ab, n; Megachil.: 
Megachilini: Megachile mendica 2; Coelioxyini: Coelioxys sayi 9, 
type; Eucer.: Tetralonia dilecta ¢ 9, fq, rosae ¢; Anthophor.: 
Anthemoessa ¢° 2, fq, Anthophora 9, Clisodon ¢. 
Short-tongued Bees (9, n)—Halict. (2): Chloralictus versatus 
e, Curtisapis coriacea ¢c, forbesii ec, Evylaeus pectoralis ¢, 4-macu- 
latus c, Oxystoglossa confusa ¢, ab, similis, at holes made by Leiono- 
tus; Prosopid.: Prosopis sayi ¢, f; Panurg.: Heterosarus parvus 
2, ¢, fq, type. 
Other Hymenoptera (1)—Zumen.: Leionotus foraminatus, per- 
forating. 
Diptera (1)—Bombyli.: Bombylius atriceps ab. 
Lepidoptera (11)—Nymphal.: Argynnis, Vanessa huntera; 
Papilion.: Euphoeades, Heraclides, Jasoniades, Laertias; Hesperi.: 
Atrytone zabulon, Epargyreus, Euphyes metacomet, Thorybes 
bathyllus, pylades. 
Monarda fistulosa (14: 11-3).—Blooms July 7—September 24; 
61 visitors observed, July 16—September 10; Mas, R. 
Birds (1)—Trochil.: Trochilus. 
