26 FLOWERS AND INSECTS—XXVI 
Other Hymenoptera (3)—Sphec.: Sphex vulgaris; Philanth.: 
Cerceris robertsonii fq; Oxybel.: Notoglossa americana. 
Diptera (4)—Syrph: Allograpta, Mesogramma marginata fq; 
Conop.: Physocephala tibialis; Tachin.: Ocyptera tenuis. 
On pistillate flowers (39) :— 
Long-tongued Bees (3)—Ap.: Apis ab; Bomb.: Bombias auri- 
comus 2; Ceratin.: Zaodontomerus ¢. 
Short-tongued Bees (7, 9)—Halict.: Chloralictus tegularis, 
Halictus parallelus, Oxystoglossa similis, Seladonia; Prosopid.: 
Prosopis pygmaea; Collet.: Colletes willistonii ab; Andren.: 
Trachandrena crataegi. 
Other Hymenoptera (10)—Sphec.: Isodontia apicalis, Prion- 
onyx thomae, Sphex procera; Philanth.: Cerceris compacta fq; 
Vesp.: Polistes pallipes; Humen.: Leionotus anormis fq; Oxybel.: 
Notoglossa frontalis; Pemphredon.: Mimesa; Pompil.: Pompiloides 
marginatus; Bracon.: Vipio. 
Diptera (18)—Syrph.: Syritta; Tachin.: Archytas analis ab, 
aterrima, Belvosia bifasciata, Cyphocera, Pachyophthalmus flori- 
densis, Peleteria, Spallanzania; Sarcophag.: Helicobia helicis, 
4-setosa, Sarcophaga cimbicis, hunteri, sinuata; Musc.: Lucilia 
sylvarum, Pseudopyrellia, Stomoxys; Anthomy.: Phorbia acra, 
platura. 
Coleoptera (1)—WMordell.: Mordella melaena. 
June 17, 1913, the following 17 species and 51 india were 
taken on pistillate flowers of Rhus glabra: 
Long-tongued Bees (3:19)—Bomb.: Bombias auricomus 1; 
Ceratin.: Ceratina 17, Zaodontomerus 1. 
Short-tongued Bees (10: 28)—Halict.: Agapostemon radiatus 
2, viridulus 1, Chloralictus pilosus 1, sparsus 9, tegularis 1, versatus 
6, zephyrus 2, Oxystoglossa similis 2; Prosopid.: Prosopis pygmaea 
1; Andren.: Opandrena serotina 3. 
Other Hymenoptera (1:1)—Sphec.: Sphex procera 1. 
Diptera (3:3)—Syrph.: Allograpta 1, Syritta 1; Tachin.: 
Peleteria 1. 
Rhus toxicodendron.—Blooms May 18-June 29; 1 visitor 
observed, June 8; Mis, Y. 
Short-tongued Bees (1)—Andren.: Trachandrena crataegi 9, se. 
. ANONACEAE 
Asimina triloba (16: 154-5).—Blooms April 10—May 27; 8 visi- 
tors observed, May 5; Mi, R. 
