G9U 
FAUNA AND FLOUA OF NORFOLK : HYMENOPTEKA. 
FAUNA AND FLORA OF NORFOLK. 
[Further Additions,] 
XVIII. 
HYMENOPTERA. 
By John B. Bridgman, F.L.S., F.E.S. 
Read 26 th February, i88g. 
Since the iiublication of “ Additions to former List ” (vol. ii. p. 617) 
in vol. hi., p. 367, but two fresh species have come under my 
notice, both Ants: one was taken by Mr. Thouless on Household, 
and the other by myself on the trunk of an old tree at Earlham in 
1888. This latter is a northern species, but found sparingly in 
the south. It is singular it should have escaped my observation so 
long, as the tree has been under observation for years in the hope 
of obtaining the three sexes of another Ant which lives inside. 
The species of the Bee Spliecudes are really not new, but formerly 
were mixed up with other species, but have been separated for 
minute differences. 
ACULEATA. 
Heterogyna. 
Formicid.®. 
Myrmica lobicornis. Fab, This rare species was taken on 
Household by Mr. Thouless in 1886, who was 
struck with their unusual sluggishness, and brought 
them to me, being convinced they must be different 
from the commoner species. 
Leptothorax auervorum. Fab. Neuters were taken from the 
trunk of an old tree at Earlham in 1888. 
