CHARLES ROBERTSON 141 
confusa sc, 4, pura se, 1, similis se, 1; Sphecodini: Sphecodium 
smilacinae 1, type; Andren.: Andrena carlini 1, Opandrena cres- 
sonii se, 2. 
Diptera (2: 6)—Empid.: Empis humilis 5; Bombyli.: Bom- 
bylius major 1. 
Smilax herbacea.—Blooms May 24—July 6; 9 species and 19 
individuals observed, May 30, June 4, 6, 8; Mi, Y. 
On staminate flowers :— 
Long-tongued Bees (1: 1)—Ap.: Apis ¢, 1. 
Short-tongued Bees (3: 11, 2, se)—Halict.: Chloralictus ver- 
satus 3, Oxystoglossa confusa 1, similis 7. 
Diptera (2: 4)—Sarcophag.: Sarcophaga cimbicis 3; Muse.: 
Lucilia caesar 1. 
Lepidoptera (1: 1)—Nymphal.: Neonympha 1. 
Coleoptera (2: 2, f, n)—Cerambyc.: Euderces 1; Scarabae.: 
Euphoria fulgida 1. 
Smilax hispida—Blooms May 3—June 3; 16 visitors observed, 
May 17—June 3; Mi, Y. 
Long-tongued Bees (5)—Ap.: Apis sc; Bomb.: Bémbus impa- 
tiens 9; Ceratin.: Ceratina 9, sc; Megachil.: Osmia pumila 9, se; 
Nomad.: Nomada parva ¢. 
Short-tongued Bees (6, 2)—Halict.: Agapostemon radiatus ¢, 
Chloralictus tegularis sc, zephyrus ¢, Evylaeus pectoralis ¢, Oxysto- 
glossa confusa sc; Andren.: Opandrena cressonii se. 
Diptera (5)—Syrph. (f): Allograpta, Mesogramma geminata, 
Syrphus americanus; Empid.: Empis loripedis; Conop.: Conops 
brachyrrhynchus. 
Stenanthium angustifolium.—Blooms June 24—July 24; 4 vis- 
itors observed, July 14, 16; Mi, W. 
Short-tongued Bees (2)—Halict.: Chloralictus sparsus 2; Pro- 
sopid.: Prosopis ziziae ¢. 
Diptera (2)—Syrph.: Syritta; Tachin.: Ocyptera lata. 
Trillium sessile (9:271-3).—Blooms April 24-May 15; 1 vis- 
itor observed, April 29, Mi, R. 
Coleoptera(1)—Curculion.: Centrinites f, 10. 
Uvularia grandiflora (9: 270-1).—Blooms April 12—May 11; 8 
species and 19 individuals observed, April 17-29; Ma, Y. 
Long-tongued Bees (5:9, 9)—Bomb.: Bombias separatus 1, 
Bombus americanorum 2, impatiens 1, ridingsii 4; Megachil.: Osmia 
atriventris 1. 
