ANTS, BEES, AND WASPS 



141 



ANTHOPHILA (cant.) 

 Halictus tumulorum, L. 



Smeathmanellus, 



Kirb. 



Andrena albicans, Kirb. 

 ,, rosae, Panz. 



fulva, Schr. This bee 

 makes nests on the edges 

 of paths and beds, throwing 

 up small mounds, which are 

 very numerous all over the 

 Garden in May. 

 Andrena nigroaenea, Kirb. 



wilkella, Kirb. 

 Nomada succincta, Panz. 

 alternata, Kirb. 

 ruficornis, L. 

 Chelostoma florisomne, L. 



campanularum, 



Kirb. 

 Megachile ligniseca, Kirb. 



centuncularis, L. 

 Osmia rufa, L. 



fulviventris, Panz. 

 Anthidium manicatum, L. 

 Melecta armata, Panz. 

 Anthophora pilipes, Fab. This 



ANTHOPHILA (cont.') 



bee appears in the early 

 spring, and is the only bee 

 out at this time which has 

 a proboscis as long as 20 mm. 

 It therefore monopolises all 

 the flowers with corolla tubes 

 of more than 15 mm. It is 

 later replaced by Bombus 

 hortorum, which has a pro- 

 boscis of about the same 

 length, but does not appear 

 in large numbers till June. 

 Psithyrus rupestris, Fab. 



,, vestalis, Foure. 

 These two bees are inquiline 

 on various species of Bombus 

 which they resemble. 

 Bombus venustus, Smith. 

 ,, agrorum, Fab. 

 hortorum, L. See 

 note on Anthophora pilipes. 

 Bombus terrestris, L. 

 sylvarum, L. 

 ,, Derhamellus, Kirb. 

 lapidarium, L. 

 Apis mellifica, L.* 



HYMENOPTERA TUBULIFERA. CHRYSIDIDAE 

 Chrysis ignita, L. 



cyanea. These two Ruby-tails are parasitic on the Aculeata. 



MITES 



Eriophyes (Phytoptus) rudis was responsible for the Witches' 

 Brooms f which used to hang like rooks' nests from the old 

 Birch in the Garden prior to its removal, and there are 

 several examples in Christ Church Meadow. A fine specimen 

 of the result of this mite taking up its domicile in the young 

 buds of a Hornbeam may be seen near the further end of 

 Addison's Walk. It was the subject of an amusing practical 

 joke in VIIIs' week, 1903. See plate, p. 214. 



* It may be of interest to record that in May, 1838, the Oxford 

 Apiarian Society made a rule " To keep a garden for experiments on 

 bees." The leading spirit was W. C. Cotton of Ch. Ch. 



f Witches' Brooms are also caused by a fungus. 



