68 FLOWERS AND INSECTS—XXVI 
Diptera (1)—Tachin.: Archytas aterrima. 
Lepidoptera (1)—Lycaen.: Chrysophanus. 
Erigeron annuus.—Blooms May 26—-September 15; 2 visitors 
observed, June 2 and 15; Mis, W. 
Long-tongued Bees (1)—Megachil.: Neotrypetes truncatus 9. 
Diptera (1)—Tachin.: Apinops. 
Erigeron canadensis.—Blooms August 16—October 29; 18 vis- 
itors observed, September 1, October 29; Mis, W. 
Long-tongued Bees (1)—£peol.: Epeolus pusillus 2%. 
Short-tongued Bees (1)—Halict.: Chloralictus versatus 9, se. 
Other Hymenoptera (7)—Philanth.: Cerceris clypeata, Eucer- 
ceris; Vesp.; Polistes variatus; Humen.: Ancistrocerus tigris; 
Crabron.: Anacrabro; Larr.: Tachytes elongatus; Ichneumon.: 
Ceratosoma. 
Diptera (9)—Syrph.: Eristalis tenax, Mesogramma marginata, 
Syritta; Conop.: Oncomyia; Tachin.: Ocyptera lata, Senotainia 
trilineata; Sarcophag.: Helicobia helicis; Musc.: Musca, Pollenia, 
Pseudopyrellia. 
Erigeron philadelphicus (15:461).—Blooms April 23—June 
13; 64 visitors observed, May 14-June 5; Mis, W. 
Long-tongued Bees (12)—Ap.: Apis; Bomb.: Bombias sep- 
aratus 9; Ceratin.: Ceratina ¢ 9, sc, ab, Zaodontomerus J, fq; 
Stelid.: Microstelis 3, fq; Megachil.: Trypetini: Neotrypetes trun- 
catus 3; Osmiini: Alcidamea simplex ¢ 9, Gnathosmia 9, se; 
Megachilini: Megachile brevis ¢; Nomad.: Centrias americanus 
3 9, ab, Holonomada superba 0’, Nomada eressonii ¢. 
Short-tongued Bees (14)—Halict. (9) : Agapostemon viridulus, 
Chloralictus albipennis, pilosus sc, sparsus, versatus se, fq, Curtis- 
apis coriacea sc, Evylaeus pectoralis sc, fq, Odontalictus se, ab, 
Oxystoglossa confusa, similis sc, Seladonia se, fq; Sphecodini: 
Sphecodium eressonii; Prosopid.: Prosopis pygmaea ¢; Andren.: 
Trachandrena mariae 9. 
Other Hymenoptera (5)—Sphec.: Sphex vulgaris; Humen.: 
Leionotus anormis ab, clypeatus ab, foraminatus, illinoensis type. 
Diptera (20)—Syrph.: Mesogramma marginata, Paragus bi- 
color, tibialis, Sphaerophoria; Bombyli.: Aldrichia f, fq, Conop.: 
Oncomyia, Zodion fulvifrons fq; Tachin.: Apinops atra type, Cis- 
togaster occidua ab, pallasii, Epigrimyia floridensis, Leucostoma 
atra, Phorantha purpurascens, Siphona; Sarcophag.: Helicobia 
helicis, Sarcophaga cimbicis, sinuata; Musc.: Pseudopyrellia; 
Anthomy.: Calythea, Phorbia platura. 
