176 FLOWERS AND INSECTS—XXVI 
bimaculata <j, petalostemonis 9, variabilis 9, se, Peponaies o3 
Emphor.: Emphor 9. 
Short-tongued Bees (6)—Halict.: Agapostemon radiatus , 
texanus 9, viridulus 2, Halictus lerouxii 2, Odontalictus 9; Pro- 
sopid.: Prosopis ziziae 9, f, n. 
Other Hymenoptera (4)—Sphec.: Sphex nigricans; Scoli.: Elis 
5-eincta; Humen.: Leionotus arvensis; Pompil.: Prioenemoides ful- 
vicornis. 
Diptera (10)—Syrph.: Eristalis latifrons, tenax ab, Sphaero- 
phoria, Syritta, Volucella evecta, vesiculosa; Conop.: Conops 
brachyrrhynchus, Physocephala texana, tibialis; Musc.: Musca. 
Lepidoptera (29)—Nymphal.: Anosia ab, Argynnis, Basilarchia 
archippus, Cereyonis, Phyciodes ab, Vanessa atalanta ab, cardui, 
huntera; Lycaen.: Chrysophanus ab, Cyaniris, Everes, Uranotes; 
Papilion.: Euphoeades, Eurymus, Laertias, Papilio ab, Pieris, 
Pontia, Zerene; Hesperi.: Atalopedes, Atrytone delaware, zabulon, 
Epargyreus ‘aye Limochores taumas ab, Polites, Thanaos juvenalis, 
Thorybes bathyllus; Arcti.: Utetheisa; Ctenuch.: Scepsis. 
Coleoptera (f, n)—Coccinell.: Hippodamea 15-maculata; 
Scarabae.: Trichius piger. 
Hemiptera (1)—Lygae.: Oncopeltus. 
July 9, 19138, the following 74 individuals, of 21 species, were 
taken on the flowers: 
Long-tongued Bees (10:56)—Ap.: Apis 32; Megachil.: Mega- 
chile brevis 5, petulans 2, 6-dentata 1, Sapapis sayi 1; E'peol.: Tri- 
epeolus concavus 3, concolor 5, lunatus 2; Hucer.: Epimelissodes 
obliqua 2, Melissodes bimaculata 3. 
Short-tongued Bees (1: 1)—Halict.: Halictus lerouxii 1. 
Other Hymenoptera (3: 4)—Sphec.: Sphex nigricans 2; Scoli.: 
Elis 5-cincta 1; Humen.: Leionotus arvensis 1. 
Diptera (1: 1)—Conop.: Physocephala texana 1. 
Lepidoptera (6:12)—Nymphal.: Argynnis 1, Phyciodes 1; 
Lycaen.: Chrysophanus 1; Papilion.: Eurymus 2, Pontia 6; 
Hesperi.: Thorybes pathyllae ale 
Galium aperine.—Blooms May 4—June 22; 1 visitor observed, 
May 15; Mi, W. 
Short-tongued Bees (1)—Halict.: Chloralictus obscurus 9. 
Galium trifidum.—Blooms May 22—July 9; 8 visitors observed, 
June 26; Mi, W. 
Short-tongued Bees (1)—Prosopid.: Prosopis pygmaea ¢. 
Diptera (7)—Syrph.: Mesogramma marginata, Pipiza pubes- 
cens, Syritta; Tachin.: Cistogaster oeccidua, Euphorocera eclaripen- 
nis; Sarcophag.: Helicobia helicis; Anthomy.: Coenosia antica. 
