MYRMECOPHILOUS NOTES FOR 1915. 3 
have been accepted at once, and was saluted, cleaned and fed by some 
of the 8 %. She was treated as their queen, and was not attacked 
until September 7th, when the nest having been left in the sun, some 
of the 8 8% began to attack her and pull her about. The nest was 
placed in a cool, dark place, and by September 19th she was once more 
thoroughly accepted as queen; she has not been attacked since, and 
to-day (December 19th) she is surrounded by a large court of attendant 
ants. 
Wheeler first demonstrated that if the wings be removed from a 
virgin Formica 2? , it causes her tu behave as would a fertilized one. I 
have subsequently found this to be the case in all such experiments 
with Formica 2 2. With the genus Donisthorpea, Crawley records 
that the act of removing the wings fxym virgin D. umbrata 9 2, was 
far from arousing the instincts possessed by a fertilized 9 [Jnt. Mnt. 
Cong., Oxford, 1912, 2, 50 (1918)]. 
Tn the above mentioned experiment with a virgin 9 of D. fuliyi- 
nosa, however, the effect caused by removing the wings was to make 
her act undoubtedly as would a fertilized 9. 
D. nigra, L.—With regard to marriage flights, on August 8th, this 
year [see Hint. Rec., 27, 206 (1915)], my friends Mr. Mitford and Mr. 
W. E. Sharp, tell me that enormous flights occurred on August 8th, 
9th, and 10th, at Catleny Reservoir, in Northumberland, between 
Otterburn and Jedburgh, and on August 8th all the way from Crow- 
thorne to Reading. 
Formica sanguinea, Latr.—On May 27th I dug up the two nests at 
Woking which contained Pseudogynes in 1913 and 1914 [ Brit. Ants, 
296 (1915)|. The one contained two queens, very many workers and 
larvee, and some 10 per cent. of pseudogynes; the colony appeared to 
be in a flourishing condition. The other consisted of a few pseudo- 
synes, workers and larve, but no queen was present, and the colony 
was neither populous nor flourishing. The most careful search failed 
to discover Lomechusa, or its larva, in either colony. 
On July 30th a large colony was discovered at Weybridge, situated 
in and under a heap of hay (cut grass). The heap had the appearance 
of a mound made of collected vegetable refuse, such as is constructed 
by F. rufa or F. exwsecta. On the same date, on another part of the 
heath, a slave-raid was observed in full swing. The nest of the F. 
sanguinea colony was situated at the foot of a small gorse bush, and I 
noticed sanguinea ¥8 8 arriving at their nest laden with cocoons. I 
tracked outgoing ¥ 8% for 125 paces (all the time meeting others carry- | 
ing cocoons), when I came upon a fusca colony, situated under a gorse 
root, where sanyuinea 8 % were emerging with their booty. I tore up 
the gorse root and revealed a quantity of cocoons and fusca § 8, the 
slave makers poured in, put the fuscas to flight and carried off all the 
cocoons. 
Mr. Oscar Whittaker tells me that he has seen this species at 
Grange-over-Sands, Much Wenlock, and while digging trenches last 
August at Thundersley, near Southend. 
Formica rufibarbis, F.—On July 30th several winged ? 9 and a 
few 3 3 were found to be present in one nest of this species at Wey- 
bridge. 
Cosmoronitan anD InTRODUCED SPEcIEs. 
DoricnoperinzZ : Iridomyrmex humilis, Mayr.—On November 22nd 
