NATURE NOTES. 269 
blances to Andrena. On the Esk, Nomada ulternata occurs 
in great numbers about the burrows of Andrena albicans 
and A. rose, var. trimmerana: it is an exceedingly pretty 
bee. Sphicodes associates with Halictus. I have taken S. 
subquadratus flying about with H. cylindricus. Psithyrus 
quadricolor is, according to Mr Saunders, “ Aculeate hymeno- 
ptera, ete.,” probably an inguiline of Bombus pratorum. I 
have taken the females in May flying about grassy banks 
looking for the nests of Bombi. 
Another bee, Colletes Daviesana (Sm.), has been recorded 
from Musselburgh, but I have not come across it in the 
locality I have worked. A. E. J. CARTER. 
CLOUDED YELLOW BUTTERFLY (Colias edusa) IN KINTYRE. 
On 15th September 1900 I found a specimen of the Clouded 
Yellow Butterfly (Colias edusa) near Clachan, Kintyre. It 
was by a burnside on a moor, and was flying very strongly. 
This is, I think, the second specimen recorded from Kintyre ; 
but I am led to believe that it is much more widely dis- 
tributed than is commonly supposed. 
JOHN MacRae. 
CRABS AND CRAB ALLIES IN THE FIRTH OF FORTH. 
ALTHOUGH between tide-marks at least, there are not a large 
number of crab-like forms in the Firth of Forth, some of our 
species occur in great abundance. Those most interesting 
creatures the syuat lobsters are represented only by 
Galathea squamifera, small specimens of which are very 
common among the roots of Laminaria. I have never found 
the much handsomer G. strigosa with its showy colouring. 
In the same place as G. squamifera, one finds numbers of the 
minute porcelain crab (Porcellana longicornis) with its flat 
