294 Trans. Acad. Sci. of St. Louis 
The corolla is nearly globular, 3 or 4 mm. long by 4 
mm. wide at the base and 2 mm. wide at the 5-toothed 
throat. The 10 stamens and the style are included. The 
anthers have terminal pores and hold their tips against 
the style. A bee’s tongue disturbs the anthers and the 
pollen is sifted out. The pollen does not fall upon the 
stigma, though its edge may receive some. 
The pendulous position favors bees, which easily hang 
upon the flowers, but butterflies also effect cross-pollina- 
tion. The mouth of the corolla is so narrow that only 
bees with tongues about 4 mm. can drain the nectar. 
F. 2-Ap. 24, 6 visitors observed, F. 2-Ap. 5. 
Lonc-ronevep Bzes (3)—Anthophor.: Emphoropsis 
3 2,8c, fq; Ap.: Apis; Bomb.: Bombus impatiens ? ¥- 
Oruer Hymeyorrera (1)—Scoli.: Campsomeris quadri- 
notata, Lxpipoprera (2)—Hesperi: Thanaos martialis; 
Papilion.: Papilio marcellus. 
ERIOCAULONACEAE. 
Exrocauton sp., Mis, W—F. 7-Ap. 26, 9 species and 29 
individuals observed, F. 29. 
Lone-ronevep Bess (1)—Ceratin.: Ceratina ¢, 1. 
SHort-roneurp Bugs (4:23)—Halict. (2): Chloralictus 
ashmeadii 12, C. nymphalis 5, Evylaeus nelumbonis 1; 
Prosopid.: Prosopis schwartzii ¢ 9,5. Drerera (3:4)— 
Syrph.: Masogramma boscii 1, M. marginata 2, Tropidia 
1. Lepwoprrera (1:1)—Nymphal.: Phyciodes 1. 
EUPHORBIACEAE. 
Cyiposcotus Strmutosus, Ma., W.—F. 8-Ap. 29, 2 visi- 
tors observed, Mr. 19, Ap. 4. 
Drerera (1)—Bombyli.: Anthrax lucifer. LepmoPTERA 
(1)—Hesperi.: Thorbyes. Individuals observed Mr. 16, 
17, 19, 21, were 15 Hesperiidae. 
