CHARLES ROBERTSON lll 
Other Hymenoptera (2)—Humen.: Ancistrocerus tigris, Leiono- 
tus foraminatus. 
Diptera (10)—Syrph.: Criorhina intersistens, Eristalis flavipes, 
Rhingia sf, ab, Sphegina rufiventris f, n, Xylota chalybea; Empid.: 
Empis loripedis, nuda ab; Bombyli.: Aldrichia f, n; Conop.: 
Stylogaster biannulata: Anthomy.: Hylemyia inornata. 
Lepidoptera (4)—Nymphal.: Charidryas; Hesperi.: Ambly- 
scirtes, Atrytone zabulon, Pholisora hayhurstii. 
May 18, 1909, the following 7 species and 22 individuals were 
taken on the flowers: 
Long-tongued Bees (7:22)—Bomb.: Bombias auricomus 1, sep- 
aratus 8, Bombus americanorum 2, consimilis 1, impatiens 2; 
ELucer.: Tetralonia belfragei 4, dilecta 4. 
Hydrophyllum virginianum (13:579).—Blooms May 6—June 
1; 19 visitors observed May 8-27; Ma, W. 
Long-tongued Bees (12)—Bomb.: Bombias separatus 9, ab, 
Bombus americanorum @ 9, ab, consimilis 9, fq, impatiens 9, fq, 
ridingsii 2 9, ab, Psithyrus variabilis 2; Megachil.: Ceratosmia 9, 
sc; Nomad.: Gnathias ovatus 9, fq; xanthoparius ¢; Eucer.: Tetra- 
lonia belfragei 9, sc, dilecta 4, fq; Anthophor.: Anthemoessa ¢ 9. 
Short-tongued Bees (3)—Halict. (2): Curtisapis coriacea se, 
- Oxystoglossa confusa ¢, n; Andren.: Andrena geranii ¢ 9, se, fq. 
Other Hymenoptera (2)—Eumen.: Ancistrocerus tigris, suck- 
ing at holes made by Leionotus, Leionotus foraminatus, perforating. 
Diptera (2)—Syrph.: Rhingia f, n; Bombyli.: Bombylius 
atriceps. 
May 18, 1909, the following 6 species and 46 individuals were 
taken on the flowers: 
Long-tongued Bees (6:46)—Bomb.: Bombias separatus 28, 
Bombus americanorum 5, consimilis 2, impatiens 2, ridingsii 2; 
Eucer.: Tetralonia dilecta 7. 
HYPERICACEAE. 
Hypericum ascyron.—Blooms July 3-August 7; 2 visitors ob- 
served, July 5; Ma, Y. 
Long-tongued Bees (2, 3, ¢)—Bomb.: Bombus americanorum 4, 
consimilis 4. 
Hypericum cistifolium (7:109).—Blooms May 29-September 
7; 5 species and 17 individuals observed, June 21—July 15; Ma, Y. 
Long-tongued Bees (4:15, ¢)—Bomb.: Bombias auricomus 9, 1, 
separatus 2 &, 8, Bombus americanorum ? 9, 5; Megachil.: Chelo- 
stomoides 9, 1. 
