346 
HYMBNOPTBBA. 
Tribe 2. Collecting pollen with the fe- 
mora {Merolegidce^ Femorilegidce), 
sometimes also with the sides of the 
metathorax g^ Xylocopidae {Ceratina, 
Xylocopa). 
h, Rhophitidas (Rhophites, 
Rhophitoides, Ilalic- 
toides). 
i, Panurginae (Panurgus, 
Dufourea, Dasypoda, 
? Panurginus). 
j, Audreuidas {Andrena^ 
ITalictus, Colletes, No- 
mia, Nomioides). 
Tribe 8. Collecting pollen with the ab- 
domen {Gastrilegidce, Dasygastrce). k, Megachilidae (il/e^acAi7e, 
Chalicodoma,Lithurgus, 
J'rachusa, Osmia, He- 
riades, Trypetes, Chelo- 
stoina, Anthidium) , 
Tribe 4. Pseudo-parasites, with no col- 
lecting apparatus, but cell-builders. . . Sphecodidae (Sphecodes). 
m, Prosopidae {Prosopis — 
HylcBus). 
III. Parasites. 
Tribe 1. Livers in cells (Guests, Inqui- 
lince) n, Psithyiidae (Psi7%r«s = 
Apathus). 
Tribe 2. Solitary (true parasites) o, Melectidae {Melecta^ Cro- 
cisa, Nomada, Epaolus^ 
EpeoloidcSy Biastes^Pa- 
$ilc8, AicliUoMcna^ Am- 
mobatoides). 
p, Stelidae (Stelis, Ccelioxys, 
Dioxys). 
The author, p. 350, notes abnormal individuals of Prosopis variegata^ 
Andrena listerella, Sphecodes ephippi [at\ ns, riifiventris and rufescens, and 
Apis mellijica, the latter also a hybrid. 
Von Hagens, B. E. Z. xviii. pp. 25-43, draws attention to the difference 
of structure in the genitalia of the males in various genera, and especially 
in Sphecodes, of which he describes those parts in 13 species (3 new), 
ascribing a greater range of variability to each on account of its parasitic 
life. 
Andrenides. 
Colletes parvulus, Mof., is an Andrena, and is re-named colletiformis ; 
F. Morawitz, Hor. Ent. Ross. x. p. 159. 
