Insects in Great Britain . 
545 
7-800 ft. (12 and 13) A. 2 spp., fp. 4. VII. and 21. IX. 95 ; 10. VI. 99, 
7-1,500 ft. (14) Coenosia sp., 1. VII. 95, 900 ft. Cordyluridae\ (15) 
Scatophaga stercoraria L., 4. VII. 95, 800 ft. (16) 1 sp., 2. VII. 95, 
800 ft. 
Class H § 16. Orchis Type. 
103. Orchis maculata, Linn. [Lit. Brit ., Darwin 483 ; 
N.C.E. 1, 3 a, 14, 18, 34, 40; Warnstorf 2506; Alps 2.] 
A bee-flower apparently much neglected about Clova. The 
spur contains no free honey and requires a breaking of the 
tissues to yield any sweet juice. 
Visitors. Lepidoptera. Rhopalocera : (1) Pieris napi L., seeking 
h. 19. VI. 96, 1,500 ft. Diptera. Anthomyiidae : (2) Hylemyia variata 
Fin., seeking h. 21. V. 95, 800 ft. (3) H. nigrescens Rnd., sitting on 
flower, 16. VI. 99, 800 ft. 
104. Orchis mascula, Linn. [Lit. Brit., Darwin 483 ; 
N.C.E. 1.] 
Visitors. Diptera. Anthomyiidae : (1) One sp., 22. VI. 95, 1,400 
ft. Cordyluridae : (2) Scatophaga stercoraria L., 5. VII. 94, 800 ft. 
Class H § 17. Tropaeolum Type. 
105. Tropaeolum speciosum, Poepp. and Endl. In cultiva- 
tion. 
Visitors. Hymenoptera. Aculeata : Apidae : (1) Bombus agrorum 
F., sh. 19. IX. 95, 800 ft. 
Class H § 18. Pinguicula Type. 
106. Pinguicula vulgaris, Linn. [Lit. N.C.E. 14; Buchenau 
in Bot. Zeitung, 1865, p. 95 ; Hildebrandt 1041 ; Arct. 36, 38 ; 
Warming 2498 ; Alps 2, 9.] A self-fertilizing flower, abundant, 
but as neglected by insects about Clova as elsewhere. Lind- 
man remarks the great rarity of visitors. Sprengel, Kerner, 
and Warming describe the way in which the stigma rolls back 
on to the anthers, and in sections of the flower we have seen 
the pollen-tubes passing into the stigmatic tissue. Abnormal 
flowers are very common ; in these it is usual for the number 
