108 Trans. Acad. Sci. of St. Louis. 
Hymenoptera — Apide: (1) Bombus separatus Cr. 5/8; (2) B. pennsyl- 
vanicus DeG. 8; (3) B. americanorum F. 9; (4) B. virginicus Oliv. 8; (5) 
Megachile inimica Cr. 9 ;(6) M. ettindnus Say p'2; (7) M. mendicaCr. J'9, 
ab.; (8) M. petulans Cr. ¢; (9) M. brevis Say ¢§'9, ab.; (10) Alcidamea 
producta Cr. 2; (11) Coelioxys alternata Say (9 ; (12) Epeotus fumipennis 
Say o'; (13) Nomada texana Cr. 9 ; Andrenide: (14) Halictus forbesii Rob. 
Q; Eumenide: (15) Odynerus anormis Say; (16) 0. sp.; Crabronide: (17) 
Crabro rufifemur Pack.; (18) Oxybelus frontalis Rob.; Philanthide: (19) 
Philanthus ventilabris F.; (20) Cerceris sp.; (21) C. finitima Cr. ; Bembecide: 
(22) Megastizus brevipennis Walsh; (23) Bembex nubillipennis Cr.; (24) 
B. fasciata F.; Larride: (25) Astata unicolor Say; (26) Tachytes validus Cr. ; 
Sphecide: (27) Sphex ichneumonea L.; (28) S. pennsylvanica L.; Pompilide: 
(29) cranes fulvicornis Cr. 
— Khopalocera: (30) Colias —_— Stoll; (31) Junonia cenia 
Hub. ; (32) “Theela saps Barr: (33) C sophanus wee B.-L.; 
ae ae Be ae Anthrax fulvohirta Wd.; ponder (37) 
—— xanthopareus Will.; (38) Physocephala tibialis Say. 
Coleopte a (39) Rhipiphorus dimidiatus F.; Curculion- 
ide: (40) Centrinus scutellum-album Say. 
Hemiptera — Pentatomide: (41) Euschistus ictericus L.; Capside: (42) 
Calocoris rapidus Say — all sucking. 
Hedeoma pulegioides Pers. — On stems which rise 1 or 2 
dm. the pale-purplish flowers are arranged in small axillary 
clusters, one or two being open in each cluster at a time and 
being obscured by the abundant leaves. 
The corolla measures about 7 or 8 mm., the tube 6, its nar- 
row part 4. The lower lip, which is 3 lobed and expands 
about 3 mm., is marked with purple. The upper lp is straight, 
two-lobed and forms an imperfect helm. Two stamens alone 
are perfect, their anthers being exerted. 
The flowers are imperfectly proterandrous or homogamous, 
and cross or self-pollination may occur. 
The flowers are evidently adapted to small bees, and appear 
to depend mainly on Calliopsis andreniformis Sm. 39, which 
is an abundant visitor. They are also visited by Augochlora 
pura Say 9. The plant is common and blooms from Aug. 7 
to Sept. 12. 
Monarda Bradburniana Beck.— This horse-mint is com- 
mon in ‘thickets, Illinois to Tennessee and Kansas,’’ and 
with Scutellaria parvula is one of the earliest of Labiate, 
