CHARLES ROBERTSON 79 
Long-tongued Bees (17)—Bomb.: Bombias auricomus 9, sepa- 
ratus ¢ 9, Bombus americanorum ¢ &, se, fq, consimilis ¢; 
Megachil. (2): Megachile brevis, Sayapis sayi, sc, Xanthosarus; 
Nomad.: Holonomada vincta 9; Epeol.: Epeolus autumnalis ¢ 9, 
Triepeolus concavus 9, concolor 2; Eucer.: Epimelissodes obliqua 
©, se, ab, Melissodes agilis ¢ 2, se, fq, bimaculata ?, coloradensis 
Jo 9, se, fq, simillima ¢, trinodis J 2, fq. 
Short-tongued Bees (15)—Halict. (2): Chloralictus pilosus, 
. parsus, ¢, n, zephyrus c, Curtisapis coriacea sc, Evylaeus pectinatus 
type, Odontalictus sc; Collet.: Colletes compactus 9, se; Dufoure.: 
Halictoides, 2; Andren.: Pterandrena aliciae 9, sc, helianthi 9, pul- 
chella ¢ 9, se, ab; Panurg.: Pseudopanurgus labrosiformis ¢ 9, se, 
fq, labrosus ¢ 2, se, ab, in cop, type, rugosus ¢ 9, se, ab, in cop, 
solidaginis ¢. 
Other Hymenoptera (3)—Scoli.: Scolia bicineta; Philanth.: 
Cerceris kennicottii; Crabron.: Protothyreopus bigeminus. 
Diptera (9)—Syrph.: Eristalis tenax fs, transversus; Bombyli.: 
Anthrax haleyon fq, Exoprosopa decora, fascipennis fq, Sparno- 
polius ab, Systoechus fq; Musc.: Pseudopyrellia; Trypet.: Trypeta 
finalis n. 
Lepidoptera (4)—Nymphal.: Phyciodes; Lycaen.: Eupsyche ; 
Papilion.: Eurymus; Hesperi.: Pholisora catullus. 
Coleoptera (4)—Chrysomel.: Diabrotica longicornis f, n; 
Lampyr.: Chauliognathus pennsylvanicus; Melo.: Epicauta penn- 
sylvanica f, n; Mordell.: Mordella scutellaris f, n. 
Hemiptera (1)—Caps.: Lygus. 
Heliopsis helianthoides (16:177).—Blooms June 22—October 
2; 51 visitors observed, July 1—-October 2; Mas, Y. 
Long-tongued Bees (19)—Bomb.: Bombus americanorum ¢, im- 
patiens 9; Ceratin.: Ceratina 2; Megachil.: Megachilini: Megachile 
brevis 3, fq, 6-dentata ¢; Coelioxyini: Coelioxys germana 4, 8-den- 
tata ¢ 9, sayi ¢; Pasit.: Holcopasites heliopsis ¢, type; Epeol.: 
Epeolus bifasciatus 4, fq, Triepeolus concavus ¢ 9, concolor ¢ 9, 
fq, cressonii ¢, lunatus 9; Eucer.: Epimelissodes obliqua ¢ 9, se, 
Melissodes coloradensis ¢, simillima ¢, trinodis ¢ 9, se, vernon- 
jana ¢. 
Short-tongued Bees (11)—Halict. (2): Chloralictus obscurus, 
pilosus se, pruinosus se, sparsus ¢c, n, Evylaeus pectoralis ¢, n, 
Odontalictus, Oxystoglossa confusa, pura; Andren.: Pterandrena 
aliciae 9; Panurg.: Pseudopanurgus labrosiformis ¢ 2, se, rugosus 
d, fq. 
Other Hymenoptera (4)—Sphec.: Sphex nigricans, vulgaris; 
Bembic.: Bembix spinolae ; Scoli.: Seolia bicincta. 
