398 



ANGIOSPERMAE—MONOCOTYLEDONES 



The following were recorded by the observers, and for the localities stated. — 



Herm. MuUer (Alps), 2 humble-bees. Alfken (Bremen), the humble-bee 

 Bombus agrorum F. 5. MacLeod (Flanders) (Bot. Jaarb. Dodonaea, Ghent, v, 1893, 

 pp. 316-23). — A. Coleoptera. Cerambycidae: i. Leptura melanura Z., numerous. 



B. Diptera. (a) Empidae: 2. Empis decora Jl/g'., skg. (b) Muscidae: 3. Lucilia sp. 



C. Hymenoptera. 4. Small ants. 



2608. O. globosa L. (Herm. Muller, 'Alpenblumen,' pp. 61-76.) — This 

 species bears butterfly flowers. 



Visitors. — Herm. Muller observed 8 butterflies. 



KlG. 365. Orchis globosa, L.{a.{'L^T\i^xxa.^a.\\^T), .^4. Flower, seen from below. j9. Do., seen almost 

 directly from the front. C Do., after removal of all the perianth leaves except the labellum, seen 

 obliquely from the side ( x 7), D. Reproductive organs and base of the labellum, seen directly from the 

 front (X 27). a, anther; a' a\ vestigial anthers; CO, corolla; o, entrance to spur; ov, ovary: pp, upper 

 petals; /', labellum; r, rostellum; jf, lateral sepals; .?', upper sepal; sp^ spur; st^ stigma. 



2609. O. purpurea Huds. (=0. fusca Jacq.). (Darwin, op. cit., p. 15.) — 

 Darwin states that the flower mechanism of this species is the same as that of 

 O. mascula. 



2610. O. ustulata L. (Darwin, op. cit., p. 25 ; Herm. Muller, 'Alpenblumen,' 

 pp. 59-61.) — This species bears Lepidopterid flowers. The very narrow entrance to 

 the spur, which is scarcely 2 mm. long, indicates small, short-tongued butterflies as 

 visitors. 



2611. O. tridentata Scop. (Herm. Muller, ' Weit. Beob.,' I, p. 291.) — 

 Visitors. — Herm. MiiUer jr. (Jena) saw the humble-bee Bombus hortorum L. 5, 



with poUinia adhering to the front of its head. 



2612. O. sambucina L. — 



Visitors. — Hoffer (Steiermark) saw the humble-bee Bombus mastrucatus Gersl. 5. 



