154 FLOWERS AND INSECTS—XXVI 
Short-tongued Bees (10)—Halict.: Agapostemon radiatus ¢ 9, 
Curtisapis coriacea ¢, fq, Halictus lerouxii 9, Seladonia 9; 
Prosopid.: Prosopis pygmaea '; Collet.: Colletes americanus ¢ 9, 
fq, armatus 0, ab, eulophi J, latitarsis 9; Andren.: Pterandrena 
solidaginis 9. 
Other Hymenoptera (39)—Sphec.: Ammobia ichneumonea, 
Isodontia apicalis, Priononyx atrata, thomae, Sceliphron; Scoli.: 
Elis 5-cineta; Philanth.: Cerceris fumipennis, kennicottii, Eucer- 
ceris, Philanthus punctatus, ventilabris; Vesp.: Polistes pallipes, 
variatus; Humen.: Ancistrocerus capra, Leionotus arvensis, dor- 
salis; Crabron.: Anacrabro, Synothyreopus, Xestocrabro texanus, 
trifasciatus; Oxybel.: Notoglossa americana, Oxybelus 4-notatus; 
Larr.: Astatus unicolor, Larropsis fq, Tachytes aurulentus; 
Nysson.: Pseudoplisus phaleratus; Pompil.: Batizonus, Ceropales 
fraterna, Episyron, Lophopompilus philadelphicus, Poecilopompilus 
interruptus, Priocnemoides fulvicornis; Tiphi.: Tiphia clypeata; 
Mutil.: Sphaerophthalma; Chrysid.: Chrysis texana, Hedyechrum 
violaceum, wiltii, Holopyga, Tetrachrysis nitidula. 
Diptera (16)—Syrph.: Eristalis bastardi, flavipes, Paragus 
tibialis, Syritta, Tropidia quadrata fq; Bombyli.: Systoechus; 
Conop.: Conops brachyrrhynechus; Tachin.: Archytas analis, Chae- 
togaedia analis; Sarcophag.: Helicobia helicis, 4-setosa, Sareophaga 
hunteri; Musc.:; Compsomyia, Phormia regina, Pseudopyrellia; 
Anthomy.: Coenosia antica. 
Coleoptera (4)—Chrysomel.: Disonycha; Coccinell.: Coccinella 
9-notata; Curculion.: Listronotus; Lampyr.: Chauliognathus penn- 
sylvanicus. 
_ Polygonum lapathifolium.—Blooms June 22—September 19; 18 
Species and 28 individuals observed, August 22, 1910; Mis, W. 
Long-tongued Bees (1:1)—Bomb.: Psithyrus variabilis J, 1. 
Short-tongued Bees (3:3, 9)—Halict.: Augochlora fervida 1, 
Chloralictus pilosus 1, Halictus parallelus se, 1. 
Other Hymenoptera (9: 16)—Scolz.: Elis interrupta 1, 5-cincta 
5, Scolia bicincta 1; Philanth.: Eucerceris 3, Philanthus punctatus 2, 
ventilabris 1; Vesp.: Polistes variatus 1; Larr.: Astatus unicolor 1; 
Chrysid.: Hedychrum wiltii 1. 
Diptera (3:3)—Tachin.: Gymnosoma 1, Trichophora 1; 
Anthomy.: Phorbia platural. 
Lepidoptera (1:1)—Nymphal.: Phyciodes 1. 
Hemiptera (1: 4)—Zygae.: Lygaeus 4. 
Polygonum pennsylvanicum (9:72).—Blooms June 20—Octo- 
ber 26; 87 visitors observed, August 8-September 22; Mis, W. 
