136 ANGIOSPERMAE—DJCOTYLEDONES 



9 bees — I. Andrena thoracica F.; 2. Bombus agrorum F.; 3. B. pomorum L.; 

 4. B. ruderatus F. ; 5. B. sylvarum Z. ; 6. B. terrester L. (P.); 7. Ceratina cucurbi- 

 tina Rossi (P.) ; 8. Megachile lefeburei Lep. (P.) ; 9. Nomada xanthosticta K. Kohl 

 (Tyrol), the fossorial wasp Crabro peltarius Schreb. 5 and S. Ducke (Trieste), 3 bees — 



I. Ostnia adunca Llr. 5 and S, freq. ; 2. O. notata F. 5, freq. ; 3. O. spinolae Schenck 

 5 and S, rare. Hoffer (Sieiermark), the bee Rhophites quinquespinosus Spin. Dours 

 (Paris), the bee Anthophora femorata Ltr. ( = Podalirius femoratus Oliv), freq. 

 Heinsius (Holland), 4 humble-bees, skg. (i. Bombus agrorum F. i and J; 2. B. 

 terrester L. $ ; 3. Psithyrus vestalis Fourcr. ; 4. P. campestris Pz. 2 S), a short- 

 tongued bee (Halictus sexcinctus F. i, skg.), 2 hover-flies (Rhingia campestris Mg. S, 

 skg., and Melanostoma hyalinata F. S, po-dvg.), and 2 butterflies, skg. (Rhodocera 

 rhamni L. 5, and Pieris rapae L. 5 (Bot. Jaarb. Dodonaea, Ghent, iv, 1892, pp. 108-9). 

 H. de Vries (Netherlands), 5 bees — i. Bombus agrorum F.'^\ 2. B. elegans Seidl. S; 

 3. B. terrester Z. S ; 4. Psithyrus campestris Pz. i ; 5. P. vestalis Fourcr. $ (Ned. 

 Kruidk. Arch., Nijmegen, 2. Ser., 2. Deel, 1875). MacLeod (Flanders), 4 humble-bees, 

 the honey-bee, a short-tongued bee, a hover-fly, and a moth (Plusia sp.) (Bot. Jaarb. 

 Dodonaea, Ghent, v, 1893, pp. 334-5) : (Pyrenees), on the var. pyrenaica, numerous 

 long-tongued and some short-tongued bees, also some Lepidoptera, Bombyliids, and 

 hover-flies (op. cit., iii, 1891, p. 310). 



1993. E. rosulatum Lange. (Loew,Ber.D.bot.Ges., Berlin, iv, 1886, pp. 153-5.) 

 — The flower mechanism of this species is similar to that of E. vulgare, but the corolla 

 is shaped more like a handbell, while its greater length and the presence of various 

 constrictions render the nectar more inaccessible, so that an insect requires a proboscis 

 9-10 mm. long in order to reach it. 



Visitors. — Loew observed the following in the Berlin Botanic Garden. — 



Two humble-bees (Bombus agrorum F., and B. hortorum Z.) skg. legitimately, 

 and one (B. terrester Z.) perforating the flowers and steahng nectar. Also 2 po-dvg. 

 hover-flies — Pipiza chalybeata Mg., and Syritta pipiens Z. 



1994. E. italicum L. (=E. altissimum yary.). — 



Visitors. — Friese (South Hungary) observed the bee Eucera dalmatica Lep. ; 

 and Schletterer (Pola) the rare bee Halictus variipes Mor. 



614. Lithospermum L. 



Flowers feebly protogynous or homogamous ; with concealed nectar secreted by 

 the ovary, and hidden in the base of the corolla-tube. Sometimes belong to class Hh. 



1995- L. arvense L. (Sprengel, ' Entd. Geh.,' p. 88 ; Herm. Miiller, ' Fer- 

 tilisation,' pp. 417-18, ' Weit. Beob.,' HI, p. 16 ; Kerner, ' Nat. Hist. PI.,' Eng. Ed. i, 



II, pp. 310, 322; Kirchner, 'Flora v. Stuttgart,' p. 560; MacLeod, Bot. Jaarb. 

 Dodonaea, Ghent, v, 1893, p. 335; Knuth, ' Bloemenbiol. Bijdragen.') — The small 

 inconspicuous floweis of this species are usually white in colour, but Loew says there 

 is also a local blue variety. The corolla-tube is 4| mm. long and i mm. broad, and 

 the short stalks of the five stamens are inserted more than half-way down it. The 

 anthers dehisce introrsely before the flower opens, though Kerner, on the contrary, 

 describes this as feebly protogynous. There are hairs above the anthers which 

 prevent rain from entering the tube. The style is about 2 mm. long, and terminates 

 in two smooth closely apposed lobes of rounded conical shape, below which is 

 an annular swelling beset with stigmatic papillae. This is situated in the middle 



