CHARLES ROBERTSON 83 
Parthenium integrifolium (15: 464-5).—Blooms June 6—July 
30; 55 visitors observed, June 21, 27, July 11; Mis, W. 
Long-tongued Bees (4)—Ceratin.: Ceratina 9, se; Megachil.: 
Neotrypetes productus <, truncatus 9, sc; Cyphopyga 9, e. 
Short-tongued Bees (7)—JHalict.: Augochlora fervida ?, Chlor- 
alictus pilosus ?, se, versatus ¢ 9, se, ab, Odontalictus 9, Oxystog- 
lossa similis 9, se, fq, Seladonia 9, sc; Prosopid.: Proposis pyg- 
maea . 
Other Hymenoptera (15)—Sphec.: Sphex nigricans; Scoli.: 
Elis 5-cincta; Philanth.: Cerceris compacta, robertsonii; Humen.: 
Leionotus anormis, clypeatus, histrionalis, ziziae; Crabron.: Sol- 
enius; Orybel.: Notoglossa americana, frontalis fq; Chrysid.: Hedy- 
chrum parvum; Bracon.: Agathis vulgaris, Vipio; Tenthredin.: 
Hylotoma humeralis. 
Diptera (20)—Syrph.: Mesogramma geminata, marginata, 
Sphaerophoria, Syritta; Empid.: Parempis; Conop.: Zodion fulvi- 
frons; Tachin.: Cistogaster occidua, Macquartia, Ocyptera tenuis, 
Phorantha purpurascens, Senotainia rubriventris, trilineata fq; 
Sarcophag.: Helicobia helicis, Sarcophaga hunteri; Musc.: Lucilia 
sylvarum, Pseudopyrellia, Stomoxys; Anthomy.: Anthomyiella, 
Calythea ; Agromyz.: Lobioptera. 
Coleoptera (6)—Cerambyc.: Typocerus sinuatus fq ; Chrysomel.: 
Diabrotica atripennis, 12-punctata f; Mordell.: Pentaria; Rhipi- 
phor.: Rhipiphorus limbatus; Scarabae.: Trichius piger sf, fq. 
Hemiptera (3)—Caps.: Calocoris, Lygus fq; Corimelaen.: 
Corimelaena pulicaria. 
Prenanthes aspera.—Blooms August 29-October 6; one visitor 
observed, September 13; Mas, W. 
Long-tongued Bees (1)—Bomb.: Bombus americanorum ¢%. 
Prenanthes crepidinea.—Blooms August 20-September 25; five 
visitors observed, August 25, September 6, 13; Mas, Y. 
Long-tongued Bees (2)——Bomb.: Bombus americanorum 0, im- 
patiens 9, se. 
Short-tongued Bees (1)—Halict.: Oxystoglossa confusa 9, ¢, n. 
Coleoptera (2)—Chrysomel.: Diabrotica longicornis f, fq, n; 
Lampyr.: Chauliognathus pennsylvanicus fq. 
Rudbeckia hirta (15: 466-7).—Blooms June 1—September 16; 
84 visitors observed, June 9—August 22; Mis, Y. 
Long-tongued Bees (14)—Ap.: Apis; Ceratin.: Ceratina 9, se, 
fq; Megachil.: Trypetini: Neotrypetes truncatus 2 se; Megachilini: 
Cyphopyga 9, se, Megachile brevis ¢ 9, 6-dentata 9, sc, Sayapis 
