CHARLES ROBERTSON 127 
Amphicarpa pitcheri (3: 200-1).—Blooms August 16-Septem- 
ber 10; 4 visitors observed, August 22-30; Ma, R. 
Birds (1)—Trochil.: Trochilus. 
Long-tongued Bees (3)—Bomb.: Bombus americanorum ¢ Q, 
consimilis 9, sc, impatiens 9, se. 
Apios tuberosa.—Blooms July 3—August 26; 2 visitors observed, 
July 20, August 12; Ma, R. 
Long-tongued Bees (2, 9)—Megachil.: Megachile brevis se, 
mendica fq. 
Astragalus canadensis (16:162).—Blooms July 3—August 26; 
10 visitors observed, July 7—-August 2; Ma, Y. 
Long-tongued Bees (7)—Ap.: Apis; Bomb.: Bombias auri- 
comus 9 %, se, fq, separatus §, Bombus americanorum 9? 9, se, fq, 
Stelid.: Anthidium psoraleae ¢ 9, fq, in cop; Megachil.: Anthemois 
2; Eucer.: Melissodes bimaculata ¢. 
Short-tongued Bees (1)—Halict.: Halictus parallelus 9. 
Other Hymenoptera (1)—Eumen.: Leionotus fundatus. 
Lepidoptera (1)—Hesperi.: Thanaos martialis n. 
Astragalus mexicanus (3:199, 16:162).—Blooms April 15- 
May 12; 16 visitors observed, April 19—May 4; Ma, Y. 
Long-tongued Bees (11)—Bomb. (2): Bombias auricomus se, 
separatus, Bombus americanorum ab; Megachil.: Osmia atriventris 
o 2, se, illinoensis Q, se, collinsiae 9, se, fq, pumila 9, se, fq; Eucer.: 
Tetralonia dilecta ¢ 9, ab, dubitata 9, sc, ab, robertsonii 2, se, type; 
Anthophor.: Anthophora ¢ 9, se, fq. 
Diptera (1)—Bombyli.: Bombylius major. 
Lepidoptera (4, n)—Papilion.: Eurymus, Papilio; Hesperi.: 
Thanaos icelus, juvenalis. 
. Baptisia bracteata (5:176-7)—Blooms April 30-May 19; 4 
visitors observed, May 1-19; Ma, W. 
Long-tongued Bees (4)—Bomb.: Bombias separatus 2, Bombus 
americanorum 92; Megachil.: Centrosmia 9, sc; Eucer.: Tetralonia 
dilecta ¢ 9, fq. 
Baptisia leucantha (3:79).—Blooms June 10-September 8; 2 
visitors observed, July 11 and often; Ma, W. 
Long-tongued Bees (1)—Bomb.: Bombus americanorum 9, se, 
ab. 
Lepidoptera (1)—Papilion.: Callidryas n. 
Cassia chamaecrista (3: 202-3).—Blooms June 28—October 5; 
24 visitors observed, July 9-September 15; Ma, Y. 
