CHARLES ROBERTSON 137 
Trifolium pratense (int, 5: 177-8).—Blooms April 26-Novem- 
ber 1; 42 visitors observed, May 24—September 11; Mas, R. 
Birds (1)—Trochil.: Trochilus. 
Long-tongued Bees (18)—Bomb.: Bombias auricomus ¢ 9, 
seutellaris 9, separatus ¢ 9 9, sc, ab, Bombus americanorum ¢ 9 9, 
se, ab, consimilis 9, se, impatiens 2, ridingsii ¢, Psithyrus laborio- 
sus 9, variabilis 9, fq; Stelid.: Anthidium psoraleae ¢ 9, se, fq; 
Megachil. (2): Osmiini: Alcidamea simplex, Osmia cordata se; 
Megachilini: Megachile brevis se ; Hucer.: Melissodes bimaculata ¢, 
Tetralonia dilecta ¢ 9, se, fq; Anthophor.: Amegilla 9, Anthemoessa 
o 2, Anthophora 9, sc. 
Short-tongued Bees (2, 9, n)—Halict.: Halictus lerouxii f; 
Panurg.: Calliopsis andreniformis c. 
Diptera (1)—Bombyli.: Exoprosopa fasciata. 
Lepidoptera (20, n)—Nymphal.: Anosia, Argynnis, Vanessa 
atalanta, cardui, huntera fq; Lycaen.: Everes; Papilion.: Callidryas, 
Eurymus, Heraclides, Iphiclides, Laertias, Papilio, Pieris, Pontia, 
Xanthidia; Hesperi.: Epargyreus ab, Limochores taumas, Polites, 
Thorybes pylades; Sphing.: Hemaris axillaris. 
Trifolium reflexum.—Blooms May 22—June 22; 2 visitors ob- 
served, June 13; Mas, W. 
Long-tongued Bees (1)—Megachil.: Osmia atriventris 9. 
Lepidoptera (1)—Lycaen.; Cyaniris n. 
__— Trifolium repens (int).—Blooms April 23—October 11; 80 vis- 
itors observed, May 12-July 14; Mas, W. 
Long-tongued Bees (33)—Ap.: Apis ab; Bomb.: Bombias sepa- 
ratus 9, se, Bombus americanorum @ 9%, sc, impatiens 9 9, ridingsii 
8, se, Psithyrus variabilis 9; Ceratin.: Ceratina 9, se; Stelid.: 
Anthidium psoraleae ¢ 9, se, fq; Megachil.: Trypetini: Neotrypetes 
barbatus ¢; Osmiini: Alcidamea simplex ¢ 9, se, ab, Diceratosmia 
©, se, ab, Hoplitis 2, se, fq, Osmia atriventris 9, se, fq, collinsiae 9, 
se, cordata 9, distincta 9, sc, pumila 9, se, ab; Megachilini: Anthe- 
mois 9, Megachile brevis ¢ 9, se, fq, generosa ¢, mendica 4; 
Coelioxyini: Coelioxys 8-dentata ¢ 9, fq, sayi ¢, fq; Nomad.: Cen- 
trias americanus 9, Holonomada affabilis ¢ 9, fq, superba 9, fq; 
Epeol.: Epeolus bifasciatus 4, interruptus ¢ 92, Triepeolus remiga- 
tus J; Eucer.: Tetralonia dilecta ¢, rosae 9; Anthophor.: Anthe- 
moessa ¢, Anthophora Q, se. 
Short-tongued Bees (15)—Halict.: Agapostemon radiatus 9, se, 
fq, viridulus 9, se, Augochlora fervida 9, viridula 9, Chloralictus 
pilosus 9, se, versatus 9, sc, Curtisapis coriacea 9, sc, fq, Halictus 
