116 
Psyche 
[June 
is 62 days shorter. Zaperdita maura, 59 days, begins 57 after 
and ends 31 days before Phy sails, 147 days, May 11-October 
4. Its flight is 88 days shorter. In time and frequency it 
shows little relation to Physalis. Perdita octomaculata, 65 
days, begins 6 days before and ends 11 days before its 
Asterese and Helianthese, 70 days, August 17-October 20. 
None of the Compositse oligoleges of Panurgidse get pollen 
from the same flowers. 
Long-tongued Oligoleges. 
Gnathosmia georgica, 49 days, begins 19 days after and 
ends 25 before its Compositse, 93 days, Apr. 23- July 24. 
Ashmeadiella bucconis, 86 days, begins 11 days after and 
ends 31 days before its Asterese and Helianthese, 128 days, 
May 25-Sept. 29. 
Sayapis. S. pollicaris, 16 days, begins 22 days after 
and ends 14 days before Coreopsis palmata, 52 days, June 
3- July 24. S. pugnata, 58 days, begins 13 days after and 
ends 48 days before its Compositse, 119 days, May 25-Sept. 
20. S. sayi, 92 days, begins one day before and ends 26 days 
before its Compositse, 117 days, July 7-Oct. 31. 
Megachile. M. generosa, 87 days, begins 38 days after 
and ends 21 days before its Papilionacese, 148 days, May 
27-Oct. 19. M. sexdentata, 92 days, begins 15 days after and 
ends 19 days before its Asterese and Helianthese, 126 days, 
June 1-Oct. 4. 
Oligotropus campanulas, 72 days, begins 4 days after 
and ends 22 days before Campanula americana, 98 days, 
July 1-Oct. 6. 
Euceridae. Melissodes cnici, 49 days, begins 71 days after 
and ends 24 days before Cirsium, 144 days, May 25-Oct. 15. 
M. coreopsis, 25 days, begins 11 days after and ends 16 days 
before Coreopsis palmata, 52 days, June 3- July 24. M. 
vernoniae, 38 days, begins 34 days after and ends 21 days 
before Vernonia fasciculata, 93 days, July 1-Oct. 1. M. ver- 
noniana, 62 days, begins 24 days after and ends 7 days 
before. M. boltoniae, 120 days, begins 12 days after and 
