JANUARY, 1902. GRAEXICHER — FLOWERS ADAPTED TO FLESH-FLIES. 
37 
A. Diptera. 
Tipulidae: (i) Pachyrhina pcduncnlata, Lociv ; Syrphidae: 
(2) Syrphus am eric arms, Wicd.; (3) S. ribcsii, L. ; (4) Alio- 
grapta obliqna, Say ; (5) Baccha aiirinota, Walk.; Tachinidae : 
(6) Siphonabrez'irostris, Coq.; {y) Exorista pystc, Walk. ; (8) 
E. cheloniae, Rond.; (9) Masiccra sp.; (10) Pclctcria robusta, 
Wicd.; Mnscidae: {11) Pollcnia rudis, Fabr. ; (12) Pliormia 
rcgina, Mcig.; (13-T4) Clinopcra spp.; Sarcophagidae : (15) 
Hclicobia sp.; (16-19) Sarcophaga spp.; Anthomyidae : 
(20) Spilogastcr sp.; (21-22) Myduca spp.; (23) Ophyra sp.; 
(24) Phorbia fnsciccps, Zctt.; (25) Pcgomyia Sp.; Sapromy- 
zidae: (26) Sapromyza qnadrilincata, Loczv; Ortalidae: (27) 
RivcUia davimana, Loczv; (28) Scoptcra znbrans, L. — all s. or 
f. p. 
B. Coleoptera. 
Lampyridae : (29) Ellychna cornisca, s. 
From this list we may infer that the flowers of Euonymus 
afro pur pur cus 3.re attractive to flies in general, but not particularly 
to flesh-flies. Syrphidae appear also on the flowers, and of these 
the two species of Syrphus, figuring on the list, furnished the ma- 
jority of the visitors on one occasion, on July 4. Of bees I have 
never witnessed a single visit, although five species of Andrenidae 
were taken on the flowers by Robertson, as may be seen from the 
following table : 
V 
cj 
a 
V 
u 
cj 
c 
'2 
ipt< 
)-> 
0- 
dn 
a 
u 
0 
u 
An 
>t 
m 
ot 
0 
U 
0 
h 
Carlinville, 111 
5 
4 
1 
2 
12 
4 
24 
1 
29 
A review of the facts presented in the foregoing, leads to the 
following conclusions, regarding the efi^ect of the odor of the 
flowers of our Smilax-spccies and of Euonymus atropiirpurcus on 
the various types of insect-visitors. 
1. The sweet-scented flowers of Smilax hispida offer nothing 
remarkable in this respect, they agree in a general way with any 
sweet-scented flowers of a similar structure. 
2. The flowers of Smilax ccirrhata and Smilax hcrbacea, with 
a putrid odor, are adapted to flesh-flies and the like, while those 
