27^! fDocenibpi", 



llowei's visited, periods of occurrence, etc. Both are active on I'lum, 

 Grooseberry, and Black Currant in April, Apple in May, Alsike and 

 White Clover in Jvily, while Charlock was also a favourite. S. lapi- 

 (Jarius shows much more restricted range both as to season and flowers. 

 It is not a visitor of fruit blossoms as it appears later in the season, and 

 the workers do not become numerous imtil June-July. Clovei's were 

 visited to some extent, also L. cornicuJaius; but such flowers as Tru- 

 nella vulgaris, Siihus fruticosus, Centaurea nigra, etc, were favourites. 

 B. hortorum also commences late in the season, July being apparently 

 its month of greatest activity. Clovers again receive some attention, 

 but its favourite flower is undoubtedl}^ the Foxglove, also Yellow Rattle 

 and such garden flowers as TropaeoJum and Antirrhinum. The queens 

 v/ere fairly common on Broad Beans. 5. pratorum is an early insect, 

 but is little seen after Juh\ It is a diligent visitor of Plum, Raspberry 

 ( which in my experience is its favourite), and to some extent Black 

 Currant. B. soroensis is a rare mid-summer bee ; but Mr. C. H. 

 Mortimer records it as common in one small field at Aberdovey on 

 Cenfaurea nir/rcf, which flower has a great attraction for bees, as has also 

 the Blackberry. Of B. joiicllns and lapponicus little can be said; the 

 former is a frequenter of Vaccineacae and Ericacae, while the latter 

 especially visits Erica vagans (Mortimer) and Blackberry. B. derham- 

 ellus also visits Bed and White Clover in July and Raspberry in May ; 

 lielferanus has been recorded from Clovers, etc., but is a scarce species. 

 Andrena fiilva is very active in visiting Gooseberry, and to a lesser 

 extent, Black Cui-rant and Plums. 



It must be remembered that there is this great difference between 

 the work of Bombi and others and Hive Bees : these latter can commence 

 work in large numbers as soon as weather permits, while the Wild Bees 

 must start afresh and build up their colonies anew each season, their 

 spring work being restricted to the queens alone. 



Knuth does not record any Bomlus as visiting Ivy, but several 

 specimens were noted on flowers at Tregarth, near Bethesda, in earl}?- 

 October 1921, and these were probably B. lucorum ; but this could not 

 be verified, as they were too high to be netted. 



It is also curious that so few records were obtained from TJlex, 

 although great masses were frequently examined during fine weather. 

 Another flower from which no records were obtained was the Blackthorn 

 (^Prunus spinosa). A nest of B. helferamts (the only one I have taken 

 as yet) was found near Llanfair P. G., Anglesey, close to the surface and 



