parti.) THE MECHANISMS OF FLOWERS. 241 
“maculata, Scop. ; (20) Mesembrina meridiana, L. ; (21) Cyrtoneura sp. ; (22) 
fe icia serva, Mgn. ; (d) Bibionidw: (23) Bibio Marci, L., s. ; (24) Dilophus 
vulgaris, L., very ab. B. Coleoptera--(a) Dermestide : C5) Attagenus pellio, 
a, 1h. ; (26) Anthrenus scrophulariz, L., very ab. ; (27) A. pimpinelle, F., 
7) ‘Il more ab.; (28) A. claviger, Er., scarce, all three Lh. ; (b) Nitidulide : 
(29) Meligethes, Lh., very ab. ; (e) Bugréaides (30) Anthaxia nitidula, L. ; 
(d) Malacodermata : (31) Malachins (elegans, Ol. ?), feeding on the anthers ; 
(32) Telephorus testaceus, L.; (e) Gidemeride: (33) Asclera coerulea, L. ; 
f) Mordellide : (34) Anaspis frontalis, L., ].h. ; (35) Mordella abdominalis, 
P., Lh. ; (g) Cerambycide: (36) Clytus bsvetions. L., Lh. ; (37) Grammoptera 
. Bicornic, F., ab., Lh. ; (h) Chrysomelide : (38) Clythra cyanea, F., gnawing 
the petals. C. Pyinenopters-— Api : (89) Andrena Schrankella, Nyl. g,s. ; 
40) A. helvola, L. 9, s.; (41) A. fulvicrus, K. 2 ¢, s.; (42) A. nitida, K 
2 S, very freq., s. and c.p.; (43) A. varians, Rossi, 2 ; (44) A. Trimmerana, 
K. 9 6; (45) A. atriceps, K.? ¢; (46) A. Gwynana, K. 9 ; (47) A. fulva, K. 9 ; 
(48) A. albicans, K. 9 4, very ab.; (49) A. dorsata, K. 2; (50) A. chryso- 
“seeles, K. 9; (51) A. parvula, F. 9; (52) A. connectens, K. 9, the last ten 
‘both s. and c.p. ; (53) Halictus cylindricus, K. 2, s.; (54) Nomada ruficornis, 
L929 6,58.3 (55) N. signata, Jur. 9; (56) Eucera longicornis, L. ¢,s8.; (57) 
Apis mellifica, L. $, s. and e.p., ab. 
154. CorongasTeR vuLcaris, Lindl—This plant in the Alps 
ften grows on the same rocks to which a wasp (Polistes gallica) 
Ny Cr WM} } 
O10) 
Oy 
Fic 78.— Cotoneaster vulgaris, Lind . 
A.—Flower, in slightly oblique side view. 
B.—Ditto, from above. 
C.—Ditto, in longitudinal section. 
nm, nectary. (xX 7.) 
(From Rosegthal, Pontresina, June 18, 1879.) 
s attached its stalked, open nest. The hemispherical calyx of 
flower is filled with honey, which the petals arch over and pro- 
tect t, excluding a great many insects. I have found the flowers 
| t ited solely by the above-mentioned wasp, whose head just fits 
0 the flower. Cross-fertilisation is insured by proterogyny ; in 
bsence of insects, self-fertilisation occurs (600). 
} R 
