CHARLES ROBERTSON 107 
EBENACEAE 
Diospyros virginiana.—Blooms May 27—June 25; 29 species 
and 279 individuals observed, May 30—June 25; Ma, Y. 
On staminate flowers (17: 127) :— 
Long-tongued Bees (4:8)—Bomb.: Bombias separatus 9, sc, 2, 
Bombus impatiens ? 9, se, 4; Ceratin.: Ceratina 9, sc, 1,n; Nomad.: 
Holonomada affabilis 9, 1. 
Short-tongued Bees (10: 109, n)—Halict.: Agapostemon radi- 
atus 9, se, 1, Augochlora fervida 9, se, 3, viridula ¢ 9, se, 5, Chlor- 
alictus sparsus Q, ¢, 2, versatus ?, ¢, 7, zephyrus 9, se, 1, Curtisapis 
coriacea 9, se, 3, forbesii 9, c, 1, fuscipennis 9, se, 85, Oxystoglossa 
similis 9, ¢, 1. 
Diptera (3: 10, f, n)—Syrph.: Allograpta 1, Syrphus ameri- 
canus 1, ribesii 8. 
On staminate and pistillate flowers (9: 146) :— 
Long-tongued Bees (6: 138)—Ap.: Apis se, 78; Bomb.: Bombus 
americanorum 9°, 6; Megachil.: Osmia pumila 9, 2, Megachile 
mendica ¢ 9, 6; Eucer.: Tetralonia rosae ¢ 2, se, 31; Anthophor.: 
Anthemoessa ¢ 9, se, 15. 
Short-tongued Bees (2: 6, 2, se)—Helict.: Agapostemon viri- 
dulus 4, Oxystoglossa confusa 2. 
Lepidoptera (1: 2)—Hespert.: Euphyes verna 2. 
On pistillate flowers (3: 6) :— 
Long-tongued Bees (1: 2)—Bomb.: Bombias auricomus 9, 2. 
Short-tongued Bees (1: 1)—Halict.: Oxystoglossa pura Q, 1, n. 
Lepidoptera (1: 3)—Hesperi.: Limochores manataaqua 3, n. 
EUPHORBIACEAE 
Euphorbia corollata (9:74-5).—Blooms May 24-September 
27 ; 52 visitors observed, July 6-August 22; Pol, W. 
Short-tongued Bees (7)—Halict. (2): Chloralictus pilosus se, 
sparsus, versatus se, fq, Seladonia; Sphecodini: Sphecodes arvensis 
do 2, fq, in cop; Prosopid.: Prosopis pygmaea Q, ziziae ¢ . 
Other Hymenoptera (22)—Sphec.: Priononyx atrata, Sceli- 
phron; Bembic.: Megastizus; Scoli.: Elis 5-cineta fq; Philanth.: 
Eucerceris; Vesp.: Polistes pallipes, variatus; Eumen.: Ancistro- 
cerus campestris, Leionotus dorsalis; Crabron.: Anacrabro, Lin- 
denius errans, Protothyreopus bigeminus; Orybel.: Oxybelus pack- 
ardii, 4-notatus; Pemphredon.: Mimesa; Larr.: Larropsis; Pompil.: 
Priocnemoides fulvicornis, Psammachares relativus; Chrysid.: 
Hedychrum wiltii, Holopyga; Chalcid.: Leucospis; Ichneumon.: 
Ceratosoma. 
