64 FLOWERS AND INSECTS—XXVI 
Syritta fq; Empid.: Parempis fq; Conop.: Oncomyia, Zodion nanel- 
lum; Tachin.: Epigrimyia floridensis, Senotainia trilineata, Siphona 
fq. 
Lepidoptera (1)—WSes?.: Sesia 6-fasciata. 
Hemiptera (2)—Caps.: Lopidea fq; Lygae.: Melanocoryphus. 
Cacalia tuberosa.—Blooms June 17—July 17; 5 visitors observed, 
July 4; Mis, W. 
Short-tongued Bees (1)—Halict.: Sphecodes arvensis ¢. 
Other Hymenoptera (1)—WScoli.: Elis 5-cincta. 
Lepidoptera (2)—Lycaen.: Chrysophanus; Ctenuch.: Scepsis. 
Hemiptera (1)—Lygae.: Lygaeus. 
Chrysanthemum leucanthemum (int.).— Blooms May 24— 
August 16; 22 visitors observed, May 28—June 21; Mis, W. 
Long-tongued Bees (6)—Ceratin.: Ceratina 9, sc; Stelid.: 
Chelynia 3, Microstelis ¢ 9, fq; Megachil.: Neotrypetes truncatus 
2, se, Aleidamea simplex ¢'; Nomad.: Centrias americanus ¢ 9. 
Short-tongued Bees (3)—Halict. (9, se, ab): Odontalictus, 
Oxystoglossa similis; Panurg.: Calliopsis andreniformis <j, ab. 
Other Hymenoptera (1)—KHumen.: Leionotus ziziae. 
Diptera (11)—Syrph.: Eristalis latifrons, Sphaerophoria, Sy- 
ritta, Tropidia mamillata; Empid.: Parempis fq, type; Conop.: 
Zodion fulvifrons; Tachin.: Distichona varia, Leucostoma atra, 
Phorantha purpurascens ab; Musc.: Pseudopyrellia; Anthomy.: 
Phorbia platura. 
Coleoptera (1)—Scarabae.: Trichius piger f. 
Cirsium altissimum (15: 475)—Blooms July 23—October 23;. 
23 visitors observed, August 14—October 23; Mas, R. 
Long-tongued Bees (13)—Ap.: Apis sc; Bomb.: Bombias auri- 
comus ¢ G, scutellaris f° 9, Bombus americanorum ¢ 4, se, fq, 
consimilis ¢ 9, se, impatiens ¢ %, se, Psithyrus variabilis ¢; 
Ceratin.: Ceratina 2; Megachil.: Neotrypetes truncatus 9, se, n; 
Epeol.: Triepeolus donatus ¢ 9; Eucer.: Epimelissodes obliqua Q, 
ce, Melissodes agilus 0, enici ¢ F, se, fq. 
Short-tongued Bees (2)—AHalict.: Agapostemon viridulus 2, 
Chloralictus sparsus 9, ¢, n. 
Lepidoptera (8)—Nymphal.: Argynnis, Basilarchia archippus, 
Vanessa atalanta; Papilion.: Euphoeades, Heraclides, Jasoniades; 
Sphing.: Deilephila, Hemaris thysbe. 
Cirsium discolor (51:475).—Blooms July 29-October 20; 31 
visitors observed, August 21—October 20; Mas, R. 
