JOUBNAL OF ENTOMOLOGY AND ZOOLOGY 61 



THE CONTEOL OF MOSQUITOS 

 Fred Knab, Science, January 24, 1913 



There are some points in this short article that should be 

 very generally known. 



The problem of mosquito control is part of the work of 

 disease prevention, as is well known. There are very few com- 

 munities now where the relation of these insects to malaria is 

 not fairly well understood. There are, however, a number of 

 facts which are new to most of us. The old idea of destroying 

 the insects was largely leased on experiments with one species. 

 People must learn that there are numbers of species and some 

 of these have ditferent habits. It used to be supposed that all 

 adult females hibernated in cold weather and that the eggs were 

 deposited and the new generations came on in warmer weather. 

 This thought has led to a failure in the control in many cases. 

 Oiling and petralizing in warm weather misses many. Most of 

 the mosquitos are from larvse developed in early spring snow 

 water. The best remedy is the removal and the burning in late 

 autumn of all plant debris and dead leaves from dried out 

 pools. If they cannot be burned they should be stacked on high 

 and dry ground. Almost all of the eggs are deposited on dead 

 leaves and require only a little moisture to develop. 



F. R. Cole. 



BEITRAG ZUR SYSTEMATIK UND BIOLOGIE DEE 



"IXODID^" 



DK. H. DE BEAXTBEPATRE AKAGAO 



Memorias de Oswaldo Cruz. Eio de Janeiro, Vol. IV, Pt. 1, 



1912. 



This article deals chiefly with Amhlyomma aganum n. sp., a 

 species of tick found upon Bufo, boa constrictor, and other cold 

 blooded animals. The adult measures 5.6 mm. by 3.7 mm. when 

 in a condition of hunger, and about 17 mm. by 12.6 mm. when 

 full of blood. The color is dark brown, with three copper-col- 

 ored spots on the scutum. The larvje and nymphs show a con- 



