CHARLES ROBERTSON 97 
Short-tongued Bees (6)—Halict. (2?) : Agapostemon radiatus se, 
Chloralictus versatus fq, Odontalictus sc; Andren. (gf): Andrena 
dunningii, Opandrena cressonii, miserabilis fq. 
Diptera (6)—Syrph.: Eristalis aeneus; Bombyli.: Bombylius 
major, pulchellus; Conop.: Myopa vesiculosa; Musc.: Pseudopy- 
rellia; Anthomy.: Phorbia acra. 
Lepidoptera (1)—Nymphal.: Vanessa huntera. 
Verbesina helianthoides (15:471-2).—Blooms June 6—August 
10; 46 visitors observed, June 10—July 11; Mas, Y. 
Long-tongued Bees (21)—Ap.: Apis se, fq; Bomb.: Bombias 
auricomus 9, Bombus americanorum 9? %; Ceratin.: Ceratina 9, 
fq; Megachil.: Trypetini: Neotrypetes truncatus ?, se; Osmiini: 
Ashmeadiella 9, se, Hoplitis 9; Megachilini: Cyphopyga ¢ 9, 
Megachile brevis ¢ 9, sc, fq, mendica 9, se, petulans ¢ 9, se, 6-den- 
tata 9, Sayapis pollicaris 4, pugnata ¢ 9, se, fq, Xanthosarus 3; 
Coelioxyini: Coelioxys alternata ¢, 8-dentata , rufitarsis ¢; 
Epeol.: Epeolus bifasciatus ¢; HLucer.: Epimelissodes obliqua 9, 
Tetralonia dilecta 9. 
Short-tongued Bees (14)—Halict.: Agapostemon viridulus 9, 
Chloralictus pilosus 9, se, sparsus 9, ¢, n, versatus 9, se, Curtisapis 
eoriacea 9, Evylaeus arcuatus 9, Halictus lerouxii 9, se, Odontalic- 
tus ¢ 9, se, Oxystoglossa pura <j, similis ?, se; Collet.: Colletes 
eulophi 9, se; Andren.: Pterandrena rudbeckiae 9; Panurg.: Cal- 
liopsis andreniformis 9, sc, Pseudopanurgus albitarsis ¢ 9, se. 
Other Hymenoptera (4)—Sphee.: Sphex nigricans fq, pictipen- 
nis, procera fq; Bembic.: Stictiella. 
Diptera (4)—Syrph.: Eristalis transversus, Mesogramma mar- 
ginata f, n; Bombyli.: Anthrax parvicornis, Systoechus. 
Lepidoptera (3)—Nymphal.: Phyciodes; Hesperi.: Thanaos 
juvenalis; Ctenuch.: Seepsis. 
Vernonia fasciculata (15: 451-2).—Blooms July 1—October 1; 
45 visitors observed, July 21-September 24; Mas, R. 
Long-tongued Bees (20)—Ap.: Apis; Bomb.: Bombias auri- 
comus ? ¥Y, separatus ¢, Bombus americanorum ¢ 9, ab, Psithyrus 
variabilis ¢ 9, fq; Ceratin.: Ceratina 9, se; Megachil.: Neotrypetes 
truncatus 9, sc; Sayapis sayi ¢ 9, Xanthosarus ¢ 9, se; Hpeol.: 
Triepeolus concavus ¢ 9, ab, nevadensis ¢, fq, remigatus ¢ 9; 
Eucer.: Epimelissodes atripes 9, obliqua ¢ 9, se, ab, Melissodes 
agilis J, bimaculata 4, nivea ¢, fq, vernoniae ¢ 9, se, ab, oligolege, 
type, vernoniana ¢ 9, se, ab, oligolege, type; Emphor.: Emphor 9. 
