CHARLES ROBERTSON 175 
patiens, Psithyrus variabilis; Ceratum.: Ceratina ¢ 9, se, fq; 
Megachil.: Osmiini: Alcidamea simplex ¢ 9, sc, Ceratosmia 9, se, fq, 
Hoplitis 9, sc, Osmia pumila 2, se; Megachilini: Anthemois , 
Megachile brevis ¢', mendica ‘2; Coelioxyini: Coelioxys 8—dentata 
3b, sayi 6; Nomad.: Gnathias ovatus 2, Holonomada affabilis ¢ 9, 
fq, superba ¢ 2, fq, Nomada sayi 2; Hucer.: Tetralonia dilecta ¢ 9, 
in cop, rosae 6; Anthophor.: Anthemoessa Q. 
Short-tongued Bees (27)—Halict. (2): Agapostemon radiatus, 
Augochlora fervida se, viridula se, Chloralictus sparsus ¢, n, ver- 
satus ¢c, n, Curtisapis forbesii sc, Evylaeus pectoralis se, fq, Halictus 
lerouxii, Odontalictus se, Oxystoglossa confusa se, similis se, Paralic- 
tus simplex, Seladonia se, fq; Sphecodini: Sphecodes arvensis, 
Sphecodium cressonii; Prosopid.: Prosopis pygmaea 9; Collet.: 
Colletes aestivalis ¢', inaequalis 9, se; Andren. (9): Andrena ear- 
lini, dunningii, mandibularis, sayi sc, Opandrena personata sc, 
Trachandrena claytoniae, crataegi sc, forbesii sec, nuda. 
Other Hymenoptera (7)—WSphec.: Isodontia apicalis, Sphex 
nigricans; Humen.: Leionotus arvensis, histrionalis, vagus, ziziae; 
Crabron.: Solenius. 
Diptera (16)—Syrph.: Didea f, n, Eristalis dimidiatus f, n, 
Mesogramma marginata f, n, Paragus bicolor n, Sphaerophoria, 
Syritta f, Syrphus ribesii f, n, Tropidia mamillata, Volucella vesicu- 
losa fq; Hmpid.: Empis distans; Bombyli.: Aldrichia f, fq, n, 
Bombylius atriceps; Conop.: Zodion fulvifrons; Tachin.: Archytas 
aterrima, Ocyptera tenuis, Spallanzania. 
Lepidoptera (13)—Nymphal.: Anosia, Charidryas, Vanessa 
atalanta; Lycaen.: Chrysophanus; Papilion.: Eurymus, Pontia; 
Hesperi.: Atrytone zabulon, Epargyreus, Euphyes metacomet, 
Limochores taumas, Polites fq, Thanaos juvenalis; Ctenuch.: 
Scepsis. 
Coleoptera (3)—Scarabae.: Euphorea fulgida f, n, sepulchralis 
f, n, Trichius piger sf. 
RUBIACEAE 
Cephalanthus occidentalis (4: 65-7).—Blooms June 27—August 
25; 77 visitors observed, July 5-August 17; Mas, W. 
Long-tongued Bees (25)—Ap.: Apis ab; Bomb.: Bombias auri- 
comus @ g, fq, scutellaris 9, separatus ¢' 9 3, ab, Bombus ameri- 
canorum ¢ @ &, se, ab, impatiens ¥, sc, fq, ridingsii ¢, Psithyrus 
variabilis 9; Ceratin.: Ceratina 2; Megachil.: Megachile brevis ¢ 9, 
fq, mendica 9, c, petulans 9, 6—dentata J 9, Sayapis sayi 2; Nomad.: 
Cephen 9; Epeol. (f 2) : Triepeolus concavus, concolor fq, lunatus; 
Eucer.: Epimelissodes obliqua ¢ 2, se, fq, Florilegus ?, Melissodes 
