CHARLES ROBERTSON 31 
Without pollinia (20: 44) :— 
Birds (1:1)—Trochil.: Trochilus 1. 
Long-tongued Bees (3:9, 2)—Bomb.: Bombias separatus 1; 
Anthophor.: Anthemoessa 7, Anthophora 1. 
Short-tongued Bees (4:7, 9)—Halict.: Augochlora fervida 2; 
Chloralictus versatus 1, Evylaeus pectoralis 3, Oxystoglossa 
similis 1. 
Lepidoptera (9:23)—Nymphal.: Argynnis 1; Papilion.: 
Euphoeades 3, Heraclides 1, Jasoniades 5, Laertias 3; Hespert.: 
Euphyes verna 1, Limochores taumas 2, Polites 2, Thorybes 
pylades 5. 
Diptera (2:3)—Tachin.: Trichophora 2, Spallanzania 1. 
Hemiptera (1:1)—Lygae.: Oncopeltus 1. 
Asclepias sullivantii (1: 210-12; 13:574-5)—Blooms June 
10-August 23; 90 visitors observed, June 19-August 20; Mas, R. 
With pollinia (25) :— 
Long-tongued Bees (11)—Bomb.: Bombias auricomus ¢ 9, ¢, Pp, 
sp, scutellaris 9 9, ec, separatus 2 9, ce, fg, Bombus americanorum Q, 
h, ¢, Psithyrus variabilis 2, ec, sp, h; Megachil.: Megachile petulans 
4, ¢, Xanthosarus ¢ ?, ¢; Epeol.: Argyroselenis 2, p, n, Epeolus 
bifasciatus ¢, p, n; Eucer.: Florilegus 4, p, Melissodes coreopsis 
9, P- 
Other Hymenoptera (4)—Sphec.: Priononyx thomae h, Sceli- 
phron ec; Bembic.: Bembix nubillipennis ¢; Ichnewmon.: Ichneumon 
flavizonatus, on antenna, n. 
Diptera (3)—Stratiomy.: Stratiomyia meigenii c, emp; Conop.: 
Physocephala tibialis p, Zodion obliquefasciatum p. 
Lepidoptera (7)—Nymphal.: Anosia ¢, h, sp, Argynnis ¢; 
Lycaen.: Strymon h, n; Papilion.: Eurymus ¢, Papilio ¢; Hespert.: 
Epargyreus ce, Limochores manataaqua ¢. 
Without pollinia, (46) :— 
Birds (1)—Trochil.: Trochilus. 
Long-tongued Bees (4)—Ceratin.: Ceratina 9; Megachil.: 
Megachilini: Megachile generosa ¢ 9, ab, mendica ¢; Coelioxyini: 
Coelioxys 8-dentata ¢ 9, fq. 
Short-tongued Bees (9)—Halict.: Augochlora viridula 9, Chlora- 
lictus pilosus 2, sparsus 9, tegularis <4, versatus ¢ 2, Oxystoglossa 
pura ¢ 9, confusa ¢ 9; Sphecodini: Drepanium ¢ 2, fq, Sphecodes 
arvensis 9. 
Other Hymenoptera (12)—Sphec.: Priononyx atrata; Bembic.: 
Bembix spinolae, Microbembex fq; Scoli.: Elis 5-cineta; Cercer.: 
Cerceris clypeata, finitima; Philanth.: Philanthus punctatus; 
