CHARLES 20BERTSON 145 
_ Malva rotundifolia (int, 6:268-9).—Blooms April 29-Novem- 
ber 19; 41 visitors observed, May 14—October 9; Mi, W. 
Long-tongued Bees (11)—Ap.: Apis ab; Bomb.: Bombias auri- 
comus 9, Bombus consimilis %, impatiens $, sc; Ceratin.: Ceratina 
9, se, fq; Megachil.: Trypetini: Neotrypetes truncatus ¢; Osmiini: 
Alcidamea simplex 9, Osmia pumila 9; Nomad.: Centrias ameri- 
canus ¢ 9, fq, Holonomada affabilis 9; Lucer.: Melissodes bimacu- 
lata J. 
Short-tongued Bees (22)—Halict.: Agapostemon radiatus ¢ 9, 
fq, viridulus ¢ 9, se, fq, Augochlora fervida 9, Chloralictus illi- 
noensis 9, type, pilosus 9, sparsus ¢ 9, fq, versatus ¢ 9, se, fq, 
zephyrus ¢, Curtisapis coriacea 9, Evylaeus pectoralis ¢ 2, se, ab, 
truncatus 9, sc, Halictus lerouxii ?, sc, Odontalictus ¢ 2, Oxysto- 
glossa confusa ¢ 9, fq, pura 9, similis 9, fq, Seladonia 9, se, ab; 
Prosopid.: Prosopis pygmaea 9, sayi 4, ab, ziziae ¢ 9, sf, n; Collet.: 
Colletes eulophi 2; Panurg.: Calliopsis andreniformis ¢ 9, se, ab. 
Diptera (5)—Syrph.: Mesogramma marginata sf; Empid.: 
Empis distans; Conop.; Zodion fulvifrons; Musc.: Pseudopyrellia ; 
Anthomy.: Phorbia aera. 
Lepidoptera (2)—Papilion.: Pieris, Pontia. 
Coleoptera (1)—Malach.: Collops f, n. 
May 31, June 24, the first 100 individuals, representing 27 
species, are as follows: 
Long-tongued Bees (7: 25)—Ap.: Apis 11; Ceratin.: Ceratina 
4; Megachil.: Neotrypetes truncatus 3, Aleidamea simplex 1, Osmia 
pumila 1; Nomad.: Centrias americanus 4, Holonomada affabilis 1. 
Short-tongued Bees (17: 72)—Halict.: Agapostemon radiatus 2, 
viridulus 3, Augochlora fervida 1, Chloralictus sparsus 2, Curti- 
sapis coriacea 1, Evylaeus pectoralis 23, Halictus lerouxii 1, Odon- 
talictus 1, Oxystoglossa confusa 2, pura 1, similis 5, Seladonia 9; 
Prosopid.: Prosopis pygmaea 2, sayi 10, ziziae 1; Collet.: Colletes 
eulophi 1; Panurg.: Calliopsis andreniformis 7. 
Diptera (2:2)—Empid.: Empis distans 1; Conop.: Zodion ful- 
vifrons 1. 
Lepidoptera (1: 1)—Papilion.; Pontia 1. 
Sida spinosa (int, 6: 269).—Blooms June 14—October 26; 8 vis- 
itors observed, August 24-September 18; Mi, Y. 
Long-tongued Bees (2)—Bomb.: Bombus americanorum ¢ 9, 
fq; Ceratin.: Ceratina 9, se. 
Short-tongued Bees (1)—AHalict.: Oxystoglossa confusa ¢. 
Lepidoptera (5)—Papilion.: Eurema, Eurymus, Pieris fq, Pon- 
tia; Hesperi.: Hesperia. 
