CHARLES ROBERTSON 85 
Pterandrena aliciae ?, se, fq; Panurg.: Pseudopanurgus albitarsis 
3 , se, labrosiformis ¢ 9, sc, fq, rudbeckiae ¢ 2, se, fq, rugosus 9. 
Other Hymenoptera (5)—Sphec.: Sphex gracilis fq, nigricans, 
vulgaris ; Bembic.: Bembix spinolae ; Scoli.: Scolia bicincta. 
Diptera (16)—Syrph.: Eristalis dimidiatus, transversus Syr- 
phus ribesii f, n; Empid.: Parempis fq; Bombyli.: Anthrax alter- 
nata, haleyon, Exoprosopa decora, fasciata, Sparnopolius, Sys- 
toechus; Conop.: Zodion fulvifrons; Tachin.: Archytas aterrima, 
Cyphocera, Peleteria fq, Senotainia trilineata, Spallanzania. 
Lepidoptera (5)—Nymphal.: Charidryas, Vanessa huntera; 
Lycaen.: Cyaniris ; Hesperi.: Limochores taumas ; Clenuch.: Scepsis. 
Rudbeckia subtomentosa.—Blooms July 19-September 16; 97 
visitors observed, July 30-September 2; Mis, Y. 
Long-tongued Bees (13)—Ap.: Apis; Ceratin.: Ceratina 9, se, 
ab ; Megachil.: Megachile brevis ¢ ?, fq, petulans 9, se, fq, 6-dentata 
2, Oligotropus 2, Sayapis sayi 9, se; Epeol.: Epeolus bifasciatus J, 
Triepeolus concolor 9; Hucer.: Epimelissodes illinoensis 9, se, 
obliqua ¢ 9, se, ab, Melissodes simillima 0, trinodis ¢ 9, se, fq. 
Short-tongued Bees (14)—Halict.: Chloralictus albipennis 9, 
se, coreopsis 2, sc, pilosus ¢ 2, sc, ab, sparsus 2, se, fq, versatus 9, 
se, ab, zephyrus 9, Curtisapis coriacea 4, Evylaeus pectoralis ¢ 9, 
se, ab, Halictus parallelus 4, Odontalictus ¢ 9, sc, ab, Seladonia 
Jo 2, se, fq; Panurg.: Pseudopanurgus albitarsis 9, sc, rudbeckiae 
3 &, se, fq, solidaginis ¢ 9, se, ab. 
Other Hymenoptera (16)—Sphec.: Priononyx atrata, thomae, 
Sphex gracilis, nigricans fq, pictipennis fq, vulgaris; Bembic.: 
Bembix nubillipennis, Bicyrtes ventralis ab, Stictiella; Scoli.: Elis 
5-cineta, Scolia bicincta fq; Huwmen.: Leionotus anormis ab, arvensis 
fq, molestus, Pterochilus ; Ichnewmon.: Ceratosoma. 
Diptera (35)—Syrph.: Eristalis latifrons fq, transversus ab, 
Mesogramma geminata, marginata sf, ab, polita, Orthoneura nitida, 
Sphaerophoria, Syritta; Empid: Parempis ab; Bombyli.: Exopro- 
sopa decora, fascipennis fq, Lepidophora, Phthiria aldrichi, cincta 
fq, Sparnopolius ab, Systoechus ab, Toxophora ; Conop.: Oncomyia, 
Zodion obliquefasciatum; Tachin: Cistogaster occidua fq, Epi- 
grimyia floridensis, Leucostoma atra, siphonina, Ocyptera lata, 
tenuis, Peleteria, Phorantha humeralis, purpurascens, Senotainia 
trilineata, Siphona, Siphoplagia anomala ab, Spallanzania ab; 
Musc.: Pseudopyrellia; Agromyz.: Eusiphona ab; Oscin.: Siphon- 
ella cinerea. 
Lepidoptera (12)—Nymphal.: Basilarchia archippus, Chari- 
dryas, Phyciodes ab; Lycaen.: Chrysophanus, Cyaniris, Everes, 
