200 Mr. G. A. James Rothney's 
flashed along tte line in some way^ causing an accelera- 
tion of pace and consequent hurried pattering of 
thousands of tiny feet on the dry leaves ? It is quite 
certain the wave of sound went from the interruption 
to the head of the column and did not come from the 
rear, where the ants had not altered their pace, and it 
is equally certain that a break in the line invariably 
causes the ants to start off at the double-quick from 
that break to the head of the column, whilst the files 
in the rear surge up to the point of interruption, and 
are for the time thrown into more or less confusion. 
The result^ even in this one instance, was disappointing, 
for the balance of evidence was certainly in favour of 
dry leaves and hurrying feet, rather than sound pro- 
duced by stridulation. 
Lobopelta chinensis, Mayr; var. minchinii, Forel, 
in litt., ? 6 . 
I found a nest of this new variety under bricks in a 
culvert by the Tittaghur Bridge, Barrackpore Park ; 
the males flew off when exposed, and the workers 
scampered away in all directions. I could not find a 
female, and no sound of any kind could be detected. I 
also took the same variety in Calicut. 
Dorylus oherthurii, Emery. 
I found a very populous nest under bricks in the cul- 
vert by the Tittaghur Bridge, Barrackpore Park ; it was 
close to (indeed the bricks were touching) the nest of 
L. mmchinii var. above referred to. Amongst the ants 
were several small fresh-water crabs ; some dead and half 
eaten, some dead and limp, but not eaten, and some alive 
and well. I could not find a female. 
Cataulacus latus, Forel. 
Bhavnagar, crawling about in the rough bark of a 
tree, keeping to the cracks and furrows, and looking 
much like the bark itself. I also found them in an 
exactly similar situation on a tree half-way up to Matheran, 
Bombay. 
