NEW ARRANGEMENT OF BRITISH BEES. 
1G3 
Their peculiar mode of collecting is a further reason 
for bringing the brush-legged Apidce collectively to the 
top of the normal bees, in juxtaposition to the Andre- 
nidce, where the transition is made very naturally from 
Dasypoda to Panurgus. 
The whole of the cibarial apparatus, or trophi, is 
always complete in all its constituent parts throughout 
the Andrenidce; and it is only with Ceratina, in the 
group of scopuliped Apidce, that it begins to show the 
tendency it has to abnormal deficiencies, by the para- 
glossae, in that genus, being obsolete. This charac¬ 
teristic, then, exhibits itself in the Nudipedes with two 
submarginal cells who are parasitical upon the Dasy- 
gasters, in whom also the maxillary palpi participate in 
a deficiency in the authentic number of their joints, 
whilst in Apis both maxillary palpi and paraglossse are 
unapparent. This shows that the numerical completion 
of the organs of the mouth have nothing to do with the 
qualifications of the creature, the best endowed in other 
respects being thus curtailed, the final cause of which is 
not yet understood. 
The shape of the tongue itself thus separates the 
Andrenidce into three well-defined divisions readily per¬ 
ceptible. These, as I have just observed with respect to 
the differences in the mode of closing the oral apparatus 
in both cases, yield no clue to economy and habits, for 
which observation must supervene to illustrate it. This, 
patiently carried out, is very desirable, as it is still in 
discussion whether, notwithstanding the elucidation 
structure affords, Prosopis and Sphecodes are or are 
not parasitical. Structure says they are, for, like the 
cuckoo-bees forming the group Nudipedes in the Apidte, 
they are destitute of the requisite apparatus for collect- 
m 2 
