188 FLOWERS AND INSECTS—XXVI 
Gerardia auriculata (13:597)—Blooms August 26—-September 
28; 7 visitors observed, August 30-September 12; Ma, R. 
Long-tongued Bees (6)—Ap.: Apis; Bomb. (¢): Bombias 
auricomus, Bombus americanorum sc, ab, impatiens sc; Hucer.: 
Melissodes boltoniae 9, ¢; Megachil.: Megachile brevis 9, se. 
Short-tongued Bees (1)—Halict.: Chloralictus versatus 9, 
esp. 
Gerardia grandiflora (13: 594-5).—Blooms July 29-September 
20; 11 visitors observed, August 8-September 14; Ma, Y. 
Birds (1)—Trochil.: Trochilus. 
Long-tongued Bees (7)—Bomb.: Bombias auricomus §%, ¢, sep- 
aratus 9, c, Bombus americanorum ¢ 2 G, se, ab, consimilis 9, 
impatiens 9, sc; Megachil.: Megachile mendica 9, ¢; Eucer.: 
Melissodes bimaculata ¢ 9, se. 
Short-tongued Bees (2, 9, n): Halict.: Chloralictus versatus 
esp, Curtisapis forbesii 9, e. 
Diptera (1)—Syrph.: Pipiza nigribarba f, n. 
Gerardia purpurea (13: 595-6).—Blooms August 30-Septem- 
ber 29; 5 visitors observed, September 4-26; Ma, R. 
Long-tongued Bees (5, se)—Bomb.: Bombus americanorum 
2 8, ab, impatiens 8; Megachil.: Megachile brevis 9; Eucer.: 
Melissodes boltoniae ?, nivea 9. 
- Gerardia tenuifolia (13:596-7).—Blooms August 19—October 
16; 17 visitors observed, August 26-September 23; Ma, R. 
Long-tongued Bees (10)—Ap.: Apis se, ab; Bomb. (se): Bom- 
bias scutellaris %, separatus ¢, Bombus americanorum @ 9, ab, 
impatiens 8, ab; Ceratin.: Ceratina 2; Eucer.: Melissodes boltoniae 
2, ¢; Megachil. (2): Megachile brevis se and cutting petals, fq, 
mendica c, Xanthosarus ¢. 
Short-tongued Bees (3)—Halict.: Chloralictus versatus 9, esp, 
n, Oxystoglossa confusa 4, n; Panurg.: Calliopsis andreniformis 
3 , se, ab, in cop. 
Diptera (1)—Syrph.: Syrphus americanus fsp, n. 
Lepidoptera (2, n)—Papilion.: Eurymus, Pieris. 
Coleoptera (1)—WMelo.: Pyrota mylabrina gn, n. 
Gratiola virginiana (13: 592).—Blooms May 11-July 17; 1 vis- 
itor observed, June 2; Mi, W. 
Short-tongued Bees (1)—Halict.: Chloralictus versatus 9, se, ab. 
Ilysanthes dubia.—Blooms June 19-—September 1; 10 species 
and 18 individuals observed, July 31, August 3, 5, 6; Mi, W. 
