198 FLOWERS AND INSECTS—XXVI 
Erigenia bulbosa (12: 159-60).—Blooms March 15-April 21; 
63 visitors observed, March 20—April 21; Mis, W. 
Long-tongued Bees (7)—WMegachil. (¢): Ceratosmia, Osmia 
atriventris, pumila; Ceratin.: Ceratina <¢, fq, Zaodontomerus '; 
Bomb.: Bombus consimilis 2; Ap.: Apis se, ab. 
Short-tongued Bees (22)—Collet.: Colletes inaequalis ¢ 9, fq; 
Halict. (2): Agapostemon radiatus, Augochlora viridula, Chlora- 
lictus pilosus, sparsus, versatus, Curtisapis forbesii type, Evylaeus 
foxii, Halictus lerouxii, Oxystoglossa confusa, Seladonia; Andren.: 
Andrena earlini ¢ 9, ab, in cop, type, erythronii 3 9, salictaria 9, 
sayi 4’, Opandrena miserabilis ¢, Parandrena ¢ 9, Ptilandrena 
erigeniae ¢ 9, fq, type, Trachandrena forbesii 9, mariae ¢ 9, nuda 
9, rugosa J 9, fq, in cop, type. 
Other Hymenoptera (1)—Chrysid.: Holochrysis hilaris. 
Diptera (29)—Tipul.: Geranomyia; Stratiomy.: Odontomyia 
pubescens; Bombylt.: Bombylius major; Syrph.: Brachypalpus 
frontosus, Chilosia capillata, Eristalis dimidiatus ab, latifrons, 
Helophilus similis, Melanostoma obscurum fq, Mesogramma 
geminata, marginata, Platychirus hyperboreus, Syritta, Syrphus 
americanus; TZachin.: Epalpus, Euphorocera claripennis, Gonia 
capitata ab; Sarcophag.: Cynomyia, Helicobia 4-setosa; Musce.: 
Phormia regina, Pseudopyrellia; Anthomy.: Phorbia acra, platura, 
Hammomyia; Lonchae.: Lonchaea aberrans, parvicornis; Scato- 
phag.: Scatophaga; Oscin.: Elachiptera costata, Oscinis coxendix. 
Lepidoptera (2)—Papilion.: Pontia; Noctu.: Plusia simplex. 
Coleoptera (2)—Chrysomel.: Diabrotica vittata; Oedemer.: 
Asclera ruficollis. 
Eryngium yuccifolium (12: 459-60).—Blooms July 7—August 
30; 182 visitors observed, July 7—-August 12; Pol, W. 
Long-tongued Bees (13)—Megachil.: Megachilini: Megachile 
brevis ¢ 9, se, mendica J, petulans (', Coelioxyini: Coelioxys octo- 
dentata % 9, in cop, sayi @'; Ceratin.: Ceratina J 2; Bomb.: Bom- 
bias separatus ¢ 9, Bombus americanorum 9, impatiens $; Ap.: 
Apis; Nomad.: Cephen 9; Eypeol.: Epeolus bifasciatus ¢, Triepeo- 
lus lunatus @. 
Short-tongued Bees (20)—Prosopid. (g ¢) : Prosopis pygmaea, 
ziziae; Collet.: Colletes speciosus 9, type; Halict.: Agapostemon 
radiatus ¢ 9, Augochlora fervida 9, Chloralictus pilosus 9, sparsus 
©, se, versatus 9, se, Curtisapis forbesii 9, Evylaeus arcuatus 9, 
pectoralis 9, Halictus lerouxii ¢ 9, parallelus ¢ 9, Odontalictus 
2, Seladonia “4; Sphecodini: Machaeris stygia 9, Sphecodes arvensis 
3S 2, in cop, Sphecodium cressonii 2; Nomt.: Paranomia 2; Panurg.: 
Calliopsis andreniformis ¢ 9. 
