104 



Chidester (F. E.). a Biological Study of the more important of the 

 Fish Enemies of the Salt-marsh Mosquitoes. — New Jersey Agric. 

 Expt. Sta., New Brunswick, Bull. 300, 16 pp., 1 plate, 2 figs. 

 [Received 22nd May 1917.] 



The following fishes are known enemies of mosquitos : — Fundulus 

 heteroclitus, F. majalis, F. diaphanus, Gamhusia affinis, Cyprinodon 

 variegatus, C. calaritaniis, Heterandria sp., Ahramis chrysokucus, 

 Carassius auratus, Eupotnotois gibbosus, Mollinesia latipennis, Girar- 

 dinus poeciloides, G. caudimaculatus and Haptochihs sp. 



Of these, by far the most important is Fundulus heteroclitus, known 

 under various popular names, including killifish and salt-water 

 minnow. It is the most voracious enemy of mosquitos in all stages 

 and also eats the larva of the water-beetle, Dytiscus, and the 

 water- bug, Notonecta, though the number of these mosquito enemies 

 destroyed by it is relatively negligible. The importance of this 

 species Hes in the fact that it migrates from the ocean to the shallows, 

 and even into almost fresh water, in vast hordes, and also that it may 

 be artificially fertilised, the young embryos being remarkably vigorous 

 and hardy, rendering the stocking of pools and streams with this 

 species a simple matter. 



Britton (W. E.) & Walden B. H.). Anti-mosquito Work in Connec- 

 ticut in 1916. — 16th Rept. State Entomologist of Connecticut for the 

 Year 1916, Conn. Agric. Expt. Sta., New Haven, 1917, pp. 126-137, 

 1 plate. [Received 17th May 1917.] 



This paper gives an account of the drainage of mosquito-breeding 

 salt-marshes by the cutting of new ditches, the cleaning-out of old 

 ones, and the "building of tide gates. Though the work is not yet 

 completed, good results are everywhere apparent, the number of 

 mosquitos being greatly reduced. 



Miscellaneous Insect Notes. 16th Rept. State Entomologist of Connecticut 

 for the Year 1916, Conn. Agric. Expt. Sta., New Haven, 1917, p. 142. 

 [Received 17th May 1917.] 



A beagle infested with the sucking dog louse, Haematopinus piliferus, 

 Burm., was unsuccessfully treated with flea-powder, creolin, or 

 whale-oil soap. Kerosene and water and a thorough combing proved 

 only a temporary remedy, but thoroughly saturating the hair and 

 skin with paraffin oil of about 28° gravity, followed in an hour with 

 a wash of soap and water, proved perfectly successful. 



Mackenna (J.). Report on the Progress of Agriculture in India for 

 1915-1916, Calcutta, pp. 56-57. [Received 20th May 1917.] 



During the year, two species of Tabanus and one of Philaem/itomyia 

 were found to be capable of transmitting surra [see this Review, 

 Ser. B, V. p. 38]. Breeding places of mosquitos were dealt with by 

 filling in hollows in trees, small puddles, etc., by the removal Tof 

 tin-cans, pots, etc., holding rain water, by oiling large pools, and by 

 the introduction of larvivorous fish into more or less permanent pools 

 and wells. 



