FLOWERS AND INSECTS 237 
1898) 
Cryptorhopalum triste Lec. ; (56) Orphilus glabratus F., ab.; Lampyridae: 
(37) Telephorus dentiger Lec. ; Scarabaeidae - (58) Hoplia trifasciata Say, 
__ freg.; (59) Euphoria fulgida F.; (60) Valgus canaliculatus F., gn.; Ceram- 
hyeidae: (61) Molorchus bimaculatus Say, s., ab. ; (62) Callimoxys sanguini- 
aallis Oliy. ; (63) Euderces picipes F. ; Chrysomelidae : (64) Diabrotica vittata 
f.,8.; (65) Disonycha limbicollis Lec., s. ; (66) Pachybrachys sp., S-; Bru- 
thidae: (67) Bruchus hibisci Oliv., s.; Oedemeridae : (68) Asclera ruficollis 
Say, 8.; Mordellidae : (69) Mordellistena biplagiata Hel., freq.; (70) M 
_ ‘persa Mels., freq. : (71) M. grammica Lec.—all s., f. p., or gn. ‘ 
Lepidoptera — Rhopalocera : (72) Papilio ajax L.; (73) Nisoniades juve- 
nalis F—both s. 
VisukNuM PRUNIFOLIUM L.—This is a small tree bearing 
tumerous flat compound cymes of white flowers. The corolla 
&xpands 8-9™", its base forming a short tube, which is somewhat 
obstructed by the short, thick style. The five stamens are 
‘tongly exserted, while the stigma is included in the tube. 
Nectar is secreted by a ring surrounding the base of the style. 
The flowers are homogamous. Cross-pollination by insects is 
“sured, but self-pollination and geitonogamy may sometimes 
*ccur by the pollen falling upon the stigmas. 
blooming season is April 23-May 16. The following 
Was observed on April 24, 25, and 29: 
rte — Apidae : (1) Apis mellifica L. 8, 8. & C. Ps + (2) Synnale 
§; (5) 0 mn » sh (3) Ceratina dupla Say, 4, s.; (4) Osmia lignaria Say ? 
Soni R, b Iventris Cr. 9, s.; (6) Nomada sayi Rob. 4%, 5+ freq.; N. cres- 
: 6,8. freq. ; (8) N. maculata Cr. 4, s.; (9) N. obliterata Cr. é, 5-5 
Raed Halictus foxii Rob. 9, s. & c. p.; (11) H. pectoralis Sm. 2, 
iia (12) H. lerouxii Lep. ¢ s. & c. p.; (13) H. cressonii Rob. 2 S-+ 
: M. 2, S. & c. p.; (15) H. tegularis Rob. 9, 8. & ¢.P-> 
S.&C.p., ab.; (17) H. stultus Cr. 9,8. &¢. p., ab. ; (18) Agaposte- 
%, S.; (19) Augochlora confusa Rob. , 8. & ¢- P» 
Sg pie Rob. ¢, s.; (21) S. dichrous Sm. % 5. freq. 
PTURI Rob» (23) S. stygius Rob. 9, s.; (24) Andrena vicina S 
»3%S.&C.p., in cop.; (26) A. sayi Rob. 4%. & % p-, freq. (27) 
cas 8, $.; (28) A. cressonii Rob. é % S- & C. p- freq. + 
: aCr. $9,s.&c.p.,ab.; (30) A. personata Rob. 4 9S. ab. (31) 
& Spee % 8. & c. p; (32) A. forbesii Rob. 2, s+ (33) 4+ hippotes Rob. 
oe ay Se A. mariae Rob. 9, s.; (35) Colletes inaequalis Say ¢+ Ves- 
Sauss, olistes metricus ay, &: Eumenidae: (37) 
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