| he Fain THE ENTOMOLOGIST. 
Mousehold three years ago; this year they literally swarmed, 
not only on Mousehold, but all round Norwich. This species 
seems to be free from the attacks of the parasitic Stylops. I 
suppose [ handled over a hundred, but not one of them had 
a Stylops, although they were in abundance in Andrena 
atriceps and A. convexiuscula, both of which insects were 
found in the same place, at the same time. 
Another Andrena was found in tolerable plenty at the 
sallows. The male and female of this bee greatly resembles 
the same sexes of Andrena dorsata, an insect not uncommon 
at the flower of the bramble during July and August. No 
bee like this latter has yet been recorded, that I know of, as 
having been captured in the early spring. Mr. F. Smith has 
identified this as A: combinata of Kirby, at one time thought 
to be a variety of the former insect. Kirby,: unfortunately, 
frequently omitted to give the date of capture, which has in 
this and another instance given rise to a slight confusion of 
species. 
I have not troubled you with a more lengthy description of 
these insects, because Mr. Frederick Smith is preparing a 
second edition of his ‘ Catalogue of British Bees, and it will 
then be done by a far abler pen than mine, and, what is more 
important, correctly so. With these, at the sallows, the rare 
Andrena Smithella was not uncommonly found. 
At Brundall, in the middle of April, I took a Nomada, 
which, | believe, is new to Britain. It is not much unlike 
N. lateralis; the latter, however, occurs about a month later. 
J am sorry to say the rough bank on which I found the two 
specimens (females) is now cut away to make a railway- 
siding. Though these species. of Andrena were plentiful, 
many of the early ones were hardly represented; of Andrena 
Gwynana and A. parvula, which generally abound on the first 
fine day towards the end of March, scarcely a specimen was 
to be found. Kirby divided these litle bees into three 
species,—Parvula, Nana, and Minutula; but recent writers 
have considered Parvula as simply a variety of Minutula. 
This appears to me to be an error, probably caused by the 
absence of a record of dates of the appearance of these 
species of Andrena. ‘This genus, as I have before observed, 
has, as a rule, but one brood in the year, and the three 
species appear successively, commencing with the earliest 
