76 FLOWERS AND INSECTS—XXVI 
Ceratina ¢ 9, se; Megachil.: Trypetini: Neotrypetes truncatus 9, 
se; Osmiini: Ashmeadiella 9, se; Megachilini: Megachile brevis 9, 
mendica <7, petulans ¢ 9, se, fq, 6-dentata 9, sc, Sayapis pugnata. 
2, se, sayi 2, se, fq, Xanthosarus 9, se; Coelioxyini: Coelioxys alter- 
nata 9, germana J 9, 8-dentata 0, sayi J; Epeol.: Epeolus autumn- 
alis ¢, fq, bifasciatus J, pusillus 3, Triepeolus concavus ¢ 9, con- 
color ¢ 9, fq, cressonii ¢ 9, fq, donatus J 9, fq, lunatus 9, neva- 
densis 9, remigatus (4, simplex 9; Hucer.: Epimelissodes obliqua 
& &, se, ab, Melissodes agilis ¢ 9, se, autumnalis ¢' 2, se, fg, bol- 
toniae 9, se, coloradensis ¢ 9, sc, fq, nivea J, fq, simillima 7, 
trinodis ¢ 9, se, fq, vernoniana J . 
Short-tongued Bees (15)—Halict.: Chloralictus illinoensis J, 
pilosus ¢ 9, se, versatus 4, Evylaeus pectoralis 9, ¢, fq, Odontalictus 
3 &, se, fq, Oxystoglossa confusa J 9, se, fq; Collet.: Colletes ameri- 
canus ¢ 9; Dufoure.: Halictoides ¢ 9, se, fq; Andren.: Pterandrena 
helianthi ¢, pulchella ¢ 9, se, fq; Panurg.: Pseudopanurgus albi- 
tarsis ¢ 9, se, fq, labrosiformis ¢ 9, se, fq, labrosus ¢ 9, se, faq, 
rudbeckiae ¢, rugosus 3 9, se, fq. 
Other Hymenoptera (4)—Sphec.: Sphex nigricans; Bembic.: 
Stictiella; Huwmen.: Leionotus arvensis; Cercer.: Cerceris rufinoda. 
Diptera (13)—Syrph.: Eristalis transversus, Milesia f, n; 
Bombyli.: Anthrax alternata f, n, haleyon, palliata, Exoprosopa 
decora, Geron rufipes, Sparnopolius ab, Systoechus; Conop.: 
Zodion fulvifrons fq, Robertsonomyia fq, in cop; Anthomy.: 
Proboscimyia; Agromyz.: Eusiphona. 
Lepidoptera (4)—Nymphal.: Charidryas ; Papilion.: Callidryas, 
Eurymus; Hesperi.: Limochores taumas. 
Coleoptera (1)—Lampyr.: Chauliognathus pennsylvanicus fq. 
August 27 the following 16 species and 55 individuals were 
taken on the flowers: 
Long-tongued Bees (8:33)—Ap.: Apis 1; Bomb.: Bombus 
americanorum 11; Megachil.: Xanthosarus 4; Epeol.: Triepeolus 
concavus 1; Eucer.: Epimelissodes obliqua 11, Melissodes agilis 2, 
eoloradensis 1, trinodis 2. 
Short-tongued Bees (2:2)—Halict.: Chloralictus pilosus 1, 
Odontalictus 1. 
Other Hymenoptera (1: 1)—Sphec.: Sphex nigricans 1. 
Diptera (2: 8)—Bombyli.: Sparnopolius 5, Systoechus 3. 
Lepidoptera (2:4)—Papilion.: Eurymus 2; Hesperi.: Limo- 
chores taumas 2. 
Coleoptera (1: 7)—Lampyr.: Chauliognathus pennsylvanicus 7. 
Helianthus grosse-serratus (15: 469-70).—Blooms August 19- 
October 15; 72 visitors observed, August 27—October 15; Mas, Y. 
