328 THE FERTILISATION OF FLOWERS. [PART III. 
strong-smelling flowers, are often found in great numbers on both 
plants, particularly on A. Millefolium. 
The following list of insects, which I have observed on the 
flowers of these two species, shows how successfully the attractive 
contrivances described and the easily accessible pollen and honey 
effect their purpose :— 
A. Hymenoptera—(a) Apidae: (1) Prosopis variegata, F. 2? ¢, very ab. ; 
(2) P. pictipes, Nyl. 2 ¢, both species s., and gathering pollen with their 
mouths ; (3) Sphecodes gibbus, L., all varieties, including ephippia, L., 2 ¢, 8., 
ab. ; (4). Halictus cylindricus, F, 9 g,¢p.ands.; (5) H. maculatus, Snijacp. : 
(6) H. leucozonius, K. 2, ¢.p.; (7) H. morio, F. 9, ¢p.; (8) H. villosulus, 
Wh ee eo rohicandce Chr. ¢,s.; (10) H. quadricinctus, F. ¢, s.; 
(11) Andrena fulvicrus, K. 9 ¢, ¢.p.. ands. ab.; (12) A. pilipes, F. ¢,s.; 
(13) A. dorsata, K. 9 g,¢.p. and s., ab.; (14) A. chrysosceles, K. $; (15) A. 
fuscipes, K. ¢; (16) A. nana, K. ¢,s.; (17) A. argentata, Sm. ¢,s.; (18) A 
albicans, K. ¢,s.; (19) A. lepida, Schenck, ¢,s.; (20) A. nigripes, K. 2,5. ; 
(21) A. denticulata, K. ¢,s.; (22) Colletes fodiens, K. 2? ¢,c.p., fp. and s., 
very ab.; (23) C. Davieseana, K. 9 @, still more ab.; (24) Nomada zonata, 
Pz. 9, s.; (25) N. ruficornis, L. 9,8. ; (26) Stelis breviuscula, Nyl. 9, s.; 
(27) Heriades truncorum, L. 9 ¢, cp. and s.; (28) Chelostoma nigricorne, 
Nyl. g,8.; (29) Osmia spinulosa, K. 9, c.p.; (30) O. leucomelena, K. 2, 
c.p.; (b) Sphegide: (31) Crabro alatus, Pz., Lep. 2 g, ab. ; (82) Cr. subter- 
raneus, F. ¢ ; (33) Lindenius albilabris, F., freq. ; (84) Oxybelus bellus, Dib. ; 
(35) O. trispinosus, F.; (36) O. unigluinis, L., Dlb., all three ab. ; (37) Philan- 
thus triangulum, F. ? ¢, freq.; (388) Cerceris arenaria, L. (v. d. L.), not rare; 
(39) C. labiata, F., ab.; (40) C. variabilis, Schrk., very ab.; (41) Dinetus 
pictus, F.; (42) Ammophila sabulosa, L. ; (48) Pompilus trivialis, Kl. ¢; (44) 
P. chalybeeatus, Schiddte, 9; (45) P. plumbeus, Dhlb. 2 ¢, (46) P. rufipes, 
L. 2 6; (47) P. viaticus, L. ¢; (48) Ceropales maculata, F., freq. ; (c) Vespide: 
(49) Odynerus sinuatus, F. ? ; (50) O. parietum, L. ¢; (51) Pterocheilus — 
phaleratus, Latr. 9; (d) Chryside : (52) Hedychrum lucidulum, Latr., Dhib, 
2.4, freq. ; (e€) Tenthredinide : (53) Tenthredo notha, K1., s., very freq. ; (54) 
Tenthredo scrophularie, L.; (55) Several undetermined sp. of Tenthredo. B. 
Diptera—(a) Stratiomyide : (56) Odontomyia viridula, F., ab. ; (6) Tabanide : 
(57) Tabanus rusticus, L., freq. ; (c) Bombylide: (58) Exoprosopa capucina, 
F., freq. ; (d) Empide: (59) Empis livida, L., ab.; (e) Syrphide : (60) Meli- 
poigtig scriptus, L.; (61) M. teeniatus, Men. ; (62) Volucella bombylans, L. ; 
ve . pellucens, L. (Almethal) ; (64) Eristalis sepulcralis, L. ; (65) E. tenax, 
L.; (66) E. arbustorum, L. ; (67) E. nemorum, L., all four ab., both s. and f.p., 
usually covered below with pollen ; (68) Syritta pipiens, L., s. and f.p., ab. ; 
(69) Eumerus sabulonum, Fall.; (f) Conopide: (70) Osriops flavipes, Li 
(71) Physocephala vittata, F., both freq., s. ; (g) Muscide: (72) Gymnosoma 
rotundata, Pz. ; (73) ee cylindrica, F.; (74) Echinomyia ferox, Pz., — 
freq. ; (75) E, tesselata, F. ; 4 Gonia capitata, Fallen, C. Lepidoptera—(qa) 
Rhopalocera: (77) Pierisnapi, L.; (78) age igr silvanus, Esp.; (79) Satyrus 
pamphilus, L. ; (80) Polyommatus Phileas, L.; (81) Lycena Egon, S. V.; (8) 
Crambina : (82) Botys purpuralis, L., alls. D, Coleoptera—(a) Buprestide : 
(83) Anthaxia nitidula, L, (Thur.) ; (6) Cerambycide : (84) Leptura testacea, 
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