125 
BRITISH. 
GROUP D. 
Animals which concern Man as causing bodily injury, some- 
times death, to him, and in other cases disease, often of a 
deadly character. 
Mosquito annoyance near Bristol. 
An insect, sent by Mr. W. B. Royce, of Bristol, that has caused 
annoyance near that place for the last five years is a true Mosquito — 
one of the Culicid&e. It was the Culex diversus (Theobald), so far only 
recorded from Tunbridge Wells and Great Staughton (and recently 
from Epping Forest). ( Vide p. 4.) 
Nothing is known of its life-history, but we may safely assume 
that it is now about to deposit its eggs. The larv?e will most likely 
be found in small collections of water. These so-called “ wrigglers ” 
should be searched for during the next few weeks, and all pools 
found to contain them should be treated with paraffin to kill the 
larvae. It may be pointed out that mosquitoes breed only in water, 
and therefore cannot have been carried to the locality in the manure 
shipped to Avonmouth, as supposed. 
Swarms of Flies bred in House Refuse. 
An enquiry was sent to the Board, asking for information as to 
how to destroy the swarms of flies that are breeding in the hirne 
O 5 
masses of dust-bin refuse in certain London suburbs. 
“ Th e annoyance caused in houses by flies which breed in large 
heaps of ‘ house ’ and ‘ dust-bin ’ refuse in certain of the suburbs of 
London, referred to by Mr. Wain, may possibly be lessened, as he 
suggests, by applying some soluble repellent. 
“ Nothing has actually been recorded on this subject ; but in the 
case of the House Fly ( Musccc domestica ), which breeds mainly in 
horse manure, lime spread over the heaps of manure has stopped the 
fly depositing its eggs. 
