CHARLES ROBERTSON 23 
Diptera (8:12)—Syrph.: Mesogramma marginata 1, Ortho- 
neura nitida f, 2, Rhingia 1; Empid.: Parempis 1; Bombyli.: Spar- 
nopolius 2; Tachin.: Epigrimyia geniculata 1; Musc.: Lucilia seri- 
cata 1; Anthomy.: Limnophora 3. 
Lepidoptera (3: 3)—Papilion.: Charidryas 1; Lycaen.: Chryso- 
phanus 1; Hesperi.: Limochores taumas 1. 
Coleoptera (2: 3)—Chrysomel.: Diabrotica 12-punctata 1; Coc- 
cinell.: Megilla f, in cop, 2. 
On staminate and pistillate flowers (17: 66) :— 
Long-tongued Bees (2:13)—Ap.: Apis 3; Bomb.: Bombus 
americanorum 9%, se, 10. 
Short-tongued Bees (4: 18)—Halict.: Agapostemon viridulus ¢, 
5, Chloralictus pilosus 9, se, 3, Evylaeus pectoralis ¢ 9, se, 8, Oxysto- 
glossa similis 9, se, 2. 
Other Hymenoptera (3:12)—Scoli.: Elis interrupta 2, 5-cincta 
7; Eumen.;: Leionotus arvensis 3. 
Diptera (4:10)—Syrph.: Syritta 2; Tachin.: Archytas analis 
3, Cyphocera 2; Musc.: Lucilia sylvarum 3. 
Lepidoptera (3:9)—Nymphal.: Phyciodes 3; Hespert.: An- 
cyloxypha 2; Ctenuch.: Scepsis 4. 
Coleoptera (1:4)—Lampyr.: Chauliognathus pennsylvanicus 4. 
On pistillate flowers (11:14) :— 
Short-tongued Bees (2:2)—Halict.: Augochlora fervida 92, 1, 
viridula 9, 1. 
Other Hymenoptera (3:4)—Sphec.: Priononyx atrata 1; 
Philanth.: Cerceris compacta 1 ; Vesp.: Polistes pallipes 2. 
Diptera (5:7)—Tachin.: Spallanzania 1, Trichophora 3; Sar- 
cophag.: Helicobia helicis 1, Sarcophaga sinuata 1; Musc.;: Lucilia 
caesar 1. 
Lepidoptera (1: 1)—Papilion.: Eurymus 1. 
AMARANTHACEAE (anemophilous) 
Amaranthus spinosus (int).—One visitor observed, July 19. 
Long-tongued Bees (1)—Ap.: Apis se, fq. 
AMARYLLIDACEAE 
Hypoxis hirsuta (5: 69).—Blooms April 23—June 12; 16 visitors 
observed, May 10-19; Mi, Y. 
Long-tongued Bees (4, 2, c)—Ceratin.: Ceratina ab; Megachil.: 
Osmia atriventris, illinoensis fq, distincta. 
Short-tongued Bees (9, 9, ¢)—Halict.: Chloralictus eressonii, 
sparsus, tegularis, versatus, Curtisapis coriacea, Dialictus anomalus 
type, Evylaeus pectoralis, Odontalictus, Oxystoglossa similis ab. 
