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CHARLES ROBERTSON 185 
Bombylius major; Conop.: Myopa pilosa fq, vesiculosa fq, Zodion 
fulvifrons; Tachin.: Archytas analis, Gymnosoma, Hypostena 
dunningii, Linnaemyia, Siphona; Sarcophag.: Cynomyia; Muse.: 
Lucilia sylvarum, Pseudopyrellia; Anthomy.: Phorbia platura fq; 
Scatophag.: Scatophaga. 
Lepidoptera (2)—Nymphal.: Vanessa huntera; Papilion.: 
Eurymus. 
Coleoptera (3)—Cerambyc.: Molorchus; Chrysomel.: Diabrotica 
vittata; Lampyr.: Ellychnia. 
SANTALACEAE 
Comandra umbellata (6: 50-1).—Blooms April 18—June 6; 44 
visitors observed, May 1-23; Pol, W. 
Long-tongued Bees (4)—Ap.: Apis; Megachil.: Osmia pumila 
2; Nomad.: Holonomada superba ¢ 2; Eucer.: Tetralonia dilecta 7. 
Short-tongued Bees (8, 9)—Halict.: Chloralictus albipennis, 
tegularis, versatus, Halictus lerouxii, Sphecodini: Sphecodes arven- 
sis; Andren.: Andrena sayi, Opandrena miserabilis, Trachandrena 
mariae. 
Diptera (28)—Stratiomy.: Odontomyia pubescens, Stratiomyia 
quaternaria; Syrph.: Eristalis dimidiatus, Helophilus latifrons, 
Sphaerophoria ab, Syritta, Tropidia mamillata, Volucella vesi- 
eulosa; Tachin.: Gonia capitata, Peleteria, Tachina robusta; 
Sarcophag: Boettcheria, Calliphora erythrocephala fq, vomitoria, 
Cynomyia ab, Sarecophaga cimbicis ab, sinuata; Musc.: Grapho- 
myia, Lucilia caesar ab, sericata fq, sylvarum ab, Myospila, Phormia 
regina fq, Pseudopyrellia; Anthomy.: Coenosia antica, Limnophora 
ab, Phorbia platura ab; Sciomyz.: Sciomyza. 
Lepidoptera (2)—Lycaen.: Uranotes; Papilion.: Iphiclides. 
Coleoptera (2)—Coccinell.: Megilla; Lampyr.: Telephorus 
bilineatus. 
SAPINDACEAE 
Aesculus glabra (16: 160).—Blooms April 7—-May 18; 9 visitors 
observed, April 21—May 11; Ma, Y. 
Long-tongued Bees (9)—Bomb. (9): Bombias auricomus fq, 
separatus, Bombus americanorum fq, impatiens; Megachil.: Cen- 
trosmia ¢ 9, se, fq, Osmia cordata ¢; Eucer.: Tetralonia belfragei 
do 2, se, fq, in cop, dilecta 2; Anthophor.: Anthophora Q, se. 
Aesculus hippocastanum (cult, 16: 159)—Eight visitors ob- 
served, May 29; Ma, W. 
Birds (1)—Trochil.: Trochilus. 
