128 FLOWERS AND INSECTS—XXVI 
Long-tongued Bees (18, c)—Ap.: Apis fq; Bomb.: Bombias 
auricomus ¢ %, ab, scutellaris 2 3, separatus 9, ab, Bombus ameri- 
canorum &, ab, consimilis 9, impatiens 2 $; Megachil. (2): Mega- 
chile brevis fq, c and cutting petals, generosa ab, mendica, petulans, 
Xanthosarus; Hucer.: (2), Epimelissodes atripes ab, oligolege, 
Florilegus, Melissodes bimaculata, comptoides ab, variabilis; Antho- 
phor.: Amegilla 9, oligolege. 
Short-tongued Bees (5, 9, esp, n)—Halict.: Agapostemon radia- 
tus, texanus, Augochlora fervida, Chloralictus pilosus, versatus. 
Diptera (1)—Syrph.: Milesia fsp, n. 
Petiolar nectaries.—On sixteen days, June 29-August 26, the 
following 67 visitors were observed :— 
Ants (4 $)—Formic.: Camponotus castaneus Formica fusea, 
schaufussi fq, Lasius fq. 
Short-tongued Bees (6)—Halict.: Chloralictus sparsus ¢ 9, ab, 
tegularis 4’, versatus ¢ 9, fq, zephyrus <4, Evylaeus pectoralis <j, 
Oxystoglossa similis ¢. 
Other Hymenoptera (438)—Sphec.: Chalybion, Chlorion, 
Sceliphron; Philanth.: Cerceris kennicottii, rufinoda; Humen.: 
Leionotus foraminatus; Crabron.: Lindenius robertsoni type, Rho- 
palum scutellatum; Ozybel.: Notoglossa americana, frontalis; 
Pemphredon.: Psen; Larr.: Astatus unicolor, Lyroda, Notogonidea, 
Tachysphex acutus, belfragei fq, mundus, tarsatus, Tachytes 
maestus, mergus, obscurus, sericatus; Nysson.: Nysson rufiventris, 
Zanysson aurinotus fq, plesia; Pompil.: Arachnoproctonus, Poecilo- 
pompilus navus, Prionenemis, Priocnemoides fulvicornis, termi- 
natus, Psammochares pretiosa, relativus; Tiphi.: Tipha punctata, 
robertsoni; Mutill. (¢'): Mutilla hexagona fq, sayi, Sphaeroph- 
thalma; Chrysid.: Chrysis intricata, texana, Tetrachrysis montana, 
Holopyga; Chalcid.: Perilampus cyaneus; Bracon.: Apanteles 
terminalis. 
Diptera (13)—Taban.: Tabanus; Syrph.: Mesogramma margi- 
nata, polita, Syritta; Conop.: Onecomyia; Tachin.: Chaetoplagia, 
Exorista confinis, Senotainia rubriventris, trilineata; Sarcophag.: 
Helicobia helicis; Musc.: Pseudopyrellia; Ortal.: Rivellia 4-fas- 
ciata; Oscin.: Chlorops assimilis. 
Hemiptera (1)—Caps.: Lygus. 
Cassia marilandica (3: 203-4).—Blooms July 1—August 26; 3 
visitors observed, July 21; Ma, Y. 
Long-tongued Bees (1)—Bomb.: Bombus americanorum 9, e. 
Short-tongued Bees (2, 9, esp, n)—Halict.: Chloralictus sparsus, 
Oxystoglossa confusa. 
