208 FLOWERS AND INSECTS—XXVI 
illinoensis, scrophulariae, vagus, ziziae, Symmorphus walshianus; 
Tiphi.: Tiphia inornata; Chalcid.: Hurytoma. 
Diptera (17)—Strotiomy.: Allognosta obscuriventris, Nemotelus, 
Stratiomyia apicula; Syrph.: Allograpta, Mesogramma geminata, 
marginata, Paragus bicolor, tibialis, Sphaerophoria, Tropidia 
mamillata; Conop.: Oncomyia, Zodion fulvifrons; Tachin.: Cisto- 
gaster occidua, pallasi, Leucostoma atra, nigricornis, Linnaemyia, 
Phorantha purpurascens; Musc.: Pseudopyrellia; Anthomy.: 
Phorbia acra ab, platura; Ortal.: Rivellia pallida; Oscin.: Chlorops 
proxima, Hippelates flavipes; Agromyz.: Leucopis, Lobioptera. 
Coleoptera (1)—Curculion.: Centrinites. 
Hemiptera (3)—Beryt.: Corizus; Pentatom.: Euschistus icteri- 
cus; Caps.: Lygus. 
May 20, 25, 26, 1910, insects taken as they came to the flowers 
showed the following 37 species and 294 individuals: 
Long-tongued Bees (2:5)—Bomb.: Bombus americanorum 1; 
Ap. Apis 4. 
Short-tongued Bees (12:126)—Prosopid.: Prosopis ziziae 3; 
Collet.: Colletes aestivalis 18; Halict.: Augochlora fervida 4, viri- 
dula 2, Chloralictus versatus 18, Evylaeus pectoralis 1, Oxysto- 
glossa similis 9, Seladonia 5; Andren.: Opandrena cressonii 9, ziziae 
45, Trachandrena crataegi 11, forbesii 1. 
Other Hymenoptera (9: 32)—Crabron.: Hypocrabro 1, Solenius 
2; Vesp.: Polistes variatus 15; Humen.: Eumenes fraternus 1, 
Leionotus foraminatus 4, histrionalis 4, illinoensis 1, ziziae 2, Sym- 
morphus walshianus 2. 
Diptera (12: 127)—WStratiomy.: Nemotelus 3, Stratiomyia api- 
cula 2; Syrph.: Mesogramma geminata 1, marginata 11, Paragus 
bicolor 1, tibialis 1; Conop.: Oncomyia 1, Zodion fulvifrons 1; 
Musc.: Pseudopyrellia 2; Anthomy.: Phorbia acra 99, platura 4; 
Agromyz.: Lobioptera 1. 
Hemiptera (2:4)—Beryt. Corizus 3; Pentatom.: Euschistus 
ictericus 1. 
Sanicula canadensis.—Blooms May 30-July 20; four visitors 
observed, June 15, 17; Mis, W. 
Short-tongued Bees (3:3)—Halict. (2): Chloralictus versatus 
1, Evylaeus 4-maculatus 1; Prosopid.: Prosopis saniculae 9, 1. 
Diptera (1: 2)—Syrph.: Mesogramma geminata 2. 
Sanicula marilandica.—Blooms May 6—June 5; 31 visitors ob- 
served, May 14, 16, 25; Mis, Y. 
Short-tongued Bees (14)—Halict. (2): Augochlora viridula, 
Chloralictus sparsus, tegularis, Curtisapis coriacea, Evylaeus foxii, 
