14 
large forms, such as horse-flies (Tabanida?), robber-flies 
(Asilidae), etc., it is not necessary to use so fine a pin as a 
No, 20 (D. F. Tayler and Co.’s entomological pin No. 5— 
price Is. 6d per ounce— would do instead).* 
Besides Mosquitoes, all other Blood-Sucking 
Diptera should be collected. 
Specimens of blood-sucking Diptera, other than mos- 
quitoes, should also be collected, and when forwarded should 
be accompanied by special notes as to their occurrence and 
habits. 
Address for Specimens. 
Specimens of mosquitoes (or other Diptera) intended fui 
the British Museum should be directed to 
<?. S. , 
THE BRITISH MUSEUM 
(Natural History), 
CROMWELL ROAD, 
LONDON, S.W. 
/All communications on the subject should be addressed. 
* For detailed instructions on collecting Dijjtera in general, nee — “How 
TO Collect Diptbka (Two-winged Flies), with Notes on the Habits of 
the Perfect Insects and Larvae ” — issued by the British Museum (Natural 
History). 
