CHARLES ROBERTSON 191 
Long-tongued Bees (6)—Ap.: Apis; Bomb. (%) : Bombus amer- 
icanorum sc, ab, consimilis sc, ab, impatiens, ridingsii sc; Eucer.: 
Melissodes bimaculata ¢. 
Diptera (1)—Syrph.: Milesia f, n. 
Lepidoptera (2, n)—Papilion.: Pieris; Hesperi.: Atrytone 
zabulon fq. 
Verbascum thapsus (int, 13: 583-4).—Blooms June 4-October 
26; 16 visitors observed, June 27—August 15; Ma, Y. 
Long-tongued Bees (3)—Ap.: Apis ¢; Bomb. (9): Bombus 
americanorum ¢, consimilis se. 
Short-tongued Bees (6)—Halict. (9, c) : Agapostemon viridulus, 
Augochlora viridula, Chloralictus cressonii, versatus, Curtisapis 
coriacea, Evylaeus pectoralis. 
Diptera (7, f, n)—Syrph.: Allograpta, Mesogramma geminata, 
marginata, Pipiza nigribarba, Syritta, Syrphus americanus; 
Anthomy.: Phorbia platura. 
Veronica arvensis (int).—Blooms April 12—June 12; 3 visitors 
observed, May 3, 19; Mi, R. 
Short-tongued Bees (2)—Halict. (2): Chloralictus versatus 3, 
Oxystoglossa similis 1. 
Diptera (1)—Syrph.: Mesogramma marginata 4. 
Veronica peregrina.—Blooms April 9-June 20; 13 visitors ob- 
served, May 3-8; Mi, W. 
Short-tongued Bees (8, 9)—Halict.: Chloralictus pilosus, pru- 
inosus, sparsus, versatus fq, zephyrus, Oxystoglossa similis fq, 
Seladonia fq ; Andren.: Opandrena cressonii. 
Diptera (4)—Syrph.: Mesogramma marginata, Sphaerophoria ; 
Anthomy.: Phorbia acra; Oscin.: Oscinis soror. 
Hemiptera (1)—Corimelaen.: Corimelaena pulicaria. 
Veronica virginica (13: 592-3).—Blooms June 20—August 27; 
42 visitors observed, July 7—August 11; Mis, W. 
Long-tongued Bees (9)—Ap.: Apis ab; Bomb, (9): Bombus 
americanorum, consimilis; Ceratin.: Ceratina 9, se; Megachil.: 
Trypetini: Neotrypetes truncatus 9, ¢; Osmiini: Aleidamea sim- 
plex 9, Hoplitis 9, se; Coelioxyini: Coelioxys 8-dentata ¢, fq; 
Eucer.: Melissodes bimaculata ¢ 9, fq. 
Short-tongued Bees (13)—Halict.: Agapostemon texanus a» 
viridulus ¢ 9, Augochlora fervida 9, Chloralictus pilosus ¢, sparsus 
9, ¢, versatus 9, se, fq, Curtisapis coriacea 2, ¢, Odontalictus 9, 
Seladonia J 9; Prosopid.: Prosopis pygmaea 9, ziziae 9. 
