CHARLES ROBERTSON 123 
Pycnanthemum virginianum (14:104-6).—Blooms July 12- 
September 7; 66 visitors observed, July 12—September 6; Mis, W. 
Long-tongued Bees (10)—Ap.: Apis ab; Bomb.: Bombias 
seutellaris %, separatus 2; Megachil.: Neotrypetes truncatus 9, 
Coelioxys 8-dentata 9; Epeol.: Epeolus bifasciatus 4, Triepeolus 
concolor ¢ 9°, fq; Lucer.: Epimelissodes atripes 2, Florilegus ¢, 
Melissodes comptoides ¢ 9. ' 
Short-tongued Bees (15)—Halict.: Agapostemon radiatus ¢, 
ab, Augochlora fervida 2, viridula ¢ 9, Chloralictus sparsus ¢, fq, 
versatus 6° 9, ab, Evylaeus arcuatus ¢, pectoralis 9, Halictus 
lerouxii ¢ 9, parallelus 9, Odontalictus 92, Seladonia ¢ 9, ab; 
Sphecodini: Drepanium 9, Sphecodes arvensis ¢ 9, ab; Nomi: 
Paranomia ¢; Panurg.: Calliopsis andreniformis ¢ 9. 
Other Hymenoptera (23)—Sphec.: Ammobia nuda, pennsyl- 
vanica, Sphex gracilis, nigricans, pictipennis, procera ab, vulgaris; 
Bembic.: Bicyrtes 4-fasciata, Megastizus, Stictiella; Scoli.: Elis 
interrupta, 5-cinecta, Scolia bicincta; Philanth.: Cerceris fumi- 
pennis, Eucerceris fq; Eumen.: Eumenes fraternus, Leionotus 
arvensis, dorsalis, foraminatus fq, Zethus; Ozrybel.: Notoglossa 
americana; Larr.: Tachytes aurulentus, elongatus. 
Diptera (14)—Syrph.: Eristalis tenax, Sphaerophoria, Syritta; 
Bombyli.: Exoprosopa fasciata, fascipennis ab, Systropus; Conop.: 
Oncomyia, Zodion fulvifrons; Tachin.: Alophora aeneoventris, 
Archytas analis ab, Cistogaster occidua, Spallanzania fq, Tricho- 
poda pennipes; Musc:: Compsomyia fq. 
Lepidoptera (2)—Nymphal.: Phyciodes fq; Papilion.: Pontia. 
Coleoptera (1)—Rhipiphor.: Rhipiphorus limbatus. 
Hemiptera (1)—Lygae.: Lygaeus. 
Scutellaria canescans (14: 119-20).—Blooms July 7—Septem- 
ber 19; 13 visitors observed, July 31—August 26; Ma, R. 
Long-tongued Bees (6)—Bomb.: Bombias auricomus 9%, sep- 
aratus %, Bombus americanorum ¢ 9, se, ab, consimilis 9, se, im- 
patiens ©, se; Ceratin.: Ceratina 9, fq, n. 
Short-tongued Bees (3)—Halict. (9, sucking at holes made by 
Leionotus) : Chloralictus sparsus, versatus, Oxystoglossa confusa. 
Other Hymenoptera (1)—Eumen.: Leionotus foraminatus, per- 
forating. 
Diptera (1)—Bombyli.: Exoprospa fasciata n. 
Lepidoptera (2, n)—Hesperi.: Atrytone zabulon, Epargyreus. 
Scutellaria lateriflora—Blooms July 18—September 28, 1 visitor 
observed, July 20; Ma, R. 
