DIPSACEAE 



563 



and Smith (Sm.) (England), 5 bees:— i. Andrena hattorfiana /'. (S., Sm.) ; 2. A. 

 marginata F. (S., Sm.) ; 3. Nomada armata H.-Sch. (Sm.) ; 4. N. jacobeae Pz. (Sm.) ; 

 5. Osmia spinulosa K. (Sm.). Marquard (extreme W. of Cornwall),, the bee Andrena 

 hattorfiana F. 



1297. K. sylvatica Duby (=Scabiosa sylvatica Z. ; and Trichera sylvatica 

 Schrad.). — Kirchner ('Flora v. Stuttgart,' p. 680) says that the mechanism of the 

 reddish-blue flowers of this species entirely agrees with that of K. arvensis, but 

 female stocks are very rare. 



Visitors. — The following are recorded by the authorities, and for the localities 

 stated. — 



Loew(Steiermark) ('Beitrage,'p. 50). — A. Diptera. (a) Conopidae: i.Occemyia 

 atra /*., skg.; 2. SicusferrugineusZ., do. (b) Syrphidae : 3. Cheilosia personataZo^w.; 

 4. Rhingia rostrata Mg., skg. B. Hymenoptera. Apidae : 5. Andrena hattorfiana 

 F. 5, po-cltg. ; 6. Ceratina cyanea K. 5, skg. ; 7. Halictus zonulus Svi. 5, po-cltg. ; 

 8. Psithyrus barbutellus K. 5, skg. : also (Switzerland), the bee Physocephala rufipes 

 F. (op. cit., p. 59). Ricca, chiefly Lepidoptera (Atti Soc. ital. so. nat., Milano, xiv, 

 1 87 1 ). Kirchner, chiefly beetles, bees, and Lepidoptera. Herm. Miiller (Alps), 3 bees, 

 2 flies, 3 Lepidoptera, and a beetle (' Alpenblumen,' p. 400). 



410. Succisa Neck. 



Gynodioecious, with protandrous hermaphrodite florets ; blue in colour, rarely 

 white ; aggregated into hemispherical heads ; belonging to class S. 



1298. S. pratensis Moench (= Scabiosa succisa Z.). (Sprengel, ' Entd. Geh.,' 

 p. 84 ; Herm. Miiller, 'Fertilisation,' pp. 313-14, ' Weit. Beob.,' Ill, p. 77; Magnus, 

 Sitzber. Ges. natf Freunde, Berlin, 1881 ; Schulz, 'Beitrage,' II, p. 192; Knuth, 'Bl. 



Fic. 188. Succisa pratensis^ Moencli.{2S\.zx Wttxm. l\\i\\e_T). (i) Flower before the anthers have 

 dehisced (after removal of the involucel). (2) Ditto, after the anthers have dehisced. (3) Ditto, 



in the female stage. 



u. Insekt. a. d. nordfr. Ins.,' pp. 84, 157, ' Bloemenbiol. Bijdragen,' p. 31 (43), ' Weit. 

 Beob. ii. Bl. u. Insekt. a. d. nordfr. Ins.,' p. 235.)^In this species, according to 

 Hermann MuUer, 50-80 tolerably similar florets are aggregated into a hemispherical 

 head. Nectar is secreted on the surface of the ovary (as in all Dipsaceae, and is 

 sheltered in the smooth narrow base of the corolla-tube (^ mm. long), which is lined 

 with hairs above and expands upwards to a diameter of 2 mm. The outermost of 

 the four (rarely five) corolla-lobes is the largest. 



002 



