parti] § THE MECHANISMS OF FLOWERS. 279 
(8) CGEdemera flavescens, L. herve C, Hymenoptera—(a) Tenthredinide : 
(4) Hylotoma enodis, L., ab.; (5) H. segmentaria, Pz, (Thur.) : (6) ert 
_ bifasciata, L. (Thur.) ; (7) T. notha, Kl.; (8) T. sp. ; (9) Athalia rose, L. ; (b) 
_ Evaniade: (10) Foenus affectator, F. (Thur.) ; : ‘(c) Chryside : (11) Chrysis 
ignita, L. (Thur.) ; (d) Sphegide: (12) Crabro subterraneus, F, ¢ (Thur.) ; 
(13) Pompilus pectinipes, v. d. L. (Thur.) ; (14) Myrmosa melanostoma, F. 
(Thur.) ; (e¢) Apide: (15) Sphecodes ephippia, L. 
184. CHAROPHYLLUM TEMULUM, L, :— 
Visitors: A. Diptera—(a) Stratiomyide : (1) Chrysomyia formosa, Scop. ; 
(b) Syrphide : (2) Cheilosia scutellata, Fallen ; (3) Chrysogaster coemeteriorum, 
L. ; (4) Melanostoma mellina, L. ; (5) Melithreptus scriptus, L. ; (6) Baccha 
élongata, F.; (7) Eristalis nemorum, L.; (8) Helophilus floreus, L. ; (9) 
Syritta pipiens, L. ; (b) AMuscide: (10) Gymnosoma rotundata, L. B. Cole- 
optera—(a) Nitidulide : e es Sea (6) Dermestide ; (12) Anthrenus 
8c ophularie, L.; (13) A. pimpinelle, F.; (¢) Cerambycide : (14) Leptura 
livida, L. ; (15) Pachyta S-rnietulata, F, (Tekl. B.). C. Hymenoptera—(a) 
Z atatinicles (16) Tenthredo flavicornis, Ll. ; (17) T. notha, Kl. ; (18) T. 
re stica, L. ; (19) Several undetermined species of Tenthredo ; (b) Sphegide : 
20) Crabro cribrarius, L. 9 ¢; (21) Entomognathus brevis, v. d. L. 2; (c) 
ee: (22) Odynerus parietum, L. 2 ; (d) Apide: @8) Andrena Collinsoniana, 
if and cp. See also No. 590, 1. 
185. ANTHRISCUS SILVESTRIS, Hoffm.—The accompanying 
igures show some of the special adaptations which all typical 
Umbbelliferse share. These features are: (1) the fully exposed 
Fic. 94.—Anthriscus silvestris, Hofim. 
_ 1.—Flower in first (male) stage. a, anthers not yet dehisced ; a’, ditto, dehisced. The styles 
‘e not yet visible. 
_ 2.—Flower in second (female) stage. The stamens have fallen off, the styles have appeared, and 
‘th eir stigmas : are mature. 
PD, inner, p’, outer petals; ov, ovary ; oy nectary ; st, stigma. 
; tuation of the honey, due to the cushion-shaped swelling of 
, the disk which secretes it, to the absence at first of styles, 
_ to the widely outstretched position of the petals, and to the 
