270 . The Botanical Gazette. ate [September, 
Diptera—Empide: (14) Empis clausa Rob. (MS.)s., ab; 
Conopide : (15) Oncomyia loraria Lw., s., freq.; (16) Stylogas- 2 
ter biannulata Say, s.; Syrphide: (17) Paragus tibialis FI. s. 
and f. p.; (18) Syrphus americanus Wd., s. and f. p.; (19) ; 
Allograpta obliqua Say, s. and f. p.; (20) Mesograpta gemin- — 
s. and f. p.; Zachinide: (24) Jurinia apicifera WIk., 85 
Muscide : (25) Graphomyia sp., s.; (26) Musca domestica L,, 3 
s.; (27) Lucilia cornicina F., s. . ol 
Coleoptera—Cerambycide : (28) Euderces picipes F., s. and 
f. p.; (29) Typocerus velutinus Oliv., s. and f. p.; Mordellida: 
(30) Mordella marginata Melsh., s., ab.; (31) Mordellistena 
sp., s., ab.; (32) M. ornata Melsh. ; 
Lepidoptera—Hesperide@: (33) Eudamus tityrus F., 5} 
Pyromorphidae: (34) Harrisina americana Harr., s. (determin 
ed by Prof. G. H. French). 
PHILADELPHUS GRANDIFLORUS Willd. 2—This plant ye 
in my neighborhood only in cultivation. I have found i 
visited very abundantly by Heriades philadelphi Rob. 8 
purplish bases, are the most conspicuous par 
m. or m 
calyx-tube, and are closely approximated. fad 
petals about 2 mm. long are pressed against the nla 
closing as far as they go the intervals between them. 
The flowers are proterandrous. When receptive, 
ma surpasses the anthers a little. The anthers 5 
retain pollen after the stigma becomes receptive, pout he = 
pollination is hardly possible, unless it is brought ‘betwee? j 
insect aid. Everything points to cross-pollination : 
separate flowers. 
#On P. coronarius see Miiller: Fertilization of Flowers, 248. 
