3i8 



ANGIOSPERMAE— DICOTYLEDON ES 



Pieris napi Z.). H. de Vries (Netherlands), the humble-bee Bombus agrorum F. 5 

 (Ned. Kruidk. Arch., Nijmegen, 2. Ser., 2. Deel, 1875). Willis (neighbourhood of 

 south coast of Scotland), 4 bees, skg. (' Fls. and Insects in Gt. Britain,' Part I) — 

 I. Bombus agrorum F., freq. ; 2. B. hortorum Z. ; 3. B. terrester Z., freq. ; 

 4. Psithyrus campestris Pz. Scott-Elliot (Dumfriesshire), the honey-bee, 5 humble- 

 bees, and a hover-fly (' Flora of Dumfriesshire,' p. 141). 



2381. T. Chamaedrys L. (Herm. Miiller, ' Alpenblumen,' pp. 309-1 1 ; 

 Schulz, ' Beitrage,' II, pp. 197, 222 ; Loew, ' Bliitenbiol. Floristik,' p. 400 ; Kirchner, 

 ' Flora V. Stuttgart,' p. 638.) — The mechanism of the purple-red flowers of this 

 species agrees essentially with that of T. Scorodonia, but the stamens do not bend 

 back so far. Hermann Miiller states that the style is about the same length as the 

 short stamens; Schulz, however, says that it now and then projects 1-3 mm. beyond 

 the long stamens, so that automatic self-pollination is excluded in such flowers. It 

 can be effected in those with short styles, for the stigma is dusted with pollen still 

 clinging to the anthers as it glides between them. A proboscis of 7-10 mm. is 

 necessary in order to suck all the nectar. 



Fig. 344. Teucrium Chamaedrys, L. (after Herm. Mailer). A. Flower in the first (male) stage, 

 seen from the side. B. Do., in a state of transition between the first (male) and the second (female) 

 stape, seen directly from the front. C. Reproductive org^ans of the same flower, seen from the side. 

 D. Flower in the second (female) stage, seen from the side (x 4). a (upper), anthers ; a (lower), uppermost 

 lobes of the corolla ; b, entrance of the flower ; st, stigma. 



Schulz observed occasional female flowers among the protandrous hermaphrodite 

 ones. He also found flowers perforated by Bombus terrester, which as a rule sucks 

 legitimately. 



Visitors. — Schletterer gives for the Tyrol (T.), and observed at Pola, the 

 following. — 



Hymenoptera. (a) Apidae: i. Anthidium diadema Ltr.; 2. A. florentinum 

 F., one 5; 3. A. variegatum F.; 4. Bombus hortorum Z. (T.) ; 5. B. terrester Z. ; 

 ■6. B. zonatus Sm., one; 7. Coelioxys aurolimbata Forst.; 8. C. conoidea ///. ; 

 9. Eucera interrupta Baer.; 10. Halictus major TVj'A (T.) ; 11. Megachile lefeburei 

 Lep.; 12. Melecta funeraria ^ra. ; 13. M. luctuosa ^S'ci?/'. ; 14. Podalirius retusus Z., 

 var. meridionalis /"/r. {b) Scoliidae : 15. Scolia haemorrhoidalis Z". 



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



Herm. Miiller (Alps), 4 long-tongued bees and a Lepidopterid. Loew (Alps), 

 a long-tongued bee (Anthophora sp.), skg. ; (Berlin Botanic Garden), the butterfly 



