2G0 
A Monograph of Culicidae. 
again renewed by Lynch Arribalzaga in 1891 ; Colonel Giles 
retains it, and states that after examining the type in the Jar din 
des Plantes he thinks that its peculiarities deserve generic value. 
In this I quite concur, but I cannot, I must say, hnd in any 
specimens the prothoracic processes, my material being too 
limited to make any detailed dissections. The great length of 
the J palpi, the densely long scaled legs, the position of the 
cross-veins and the form of the two fork-cells readily separate 
species of this genus from those of Culex and Mucidus, whilst the 
arrangement of the thoracic scales is very distinct. 
The form of the ^ palpi differs somewhat in the two species 
I have seen. 
There are no printed records of the life-history of any 
member of this genus, but Dr. Lutz tells me in his valuable 
letters that “the larvae are carnivorous, and prey very ravenously 
on other larvae of Culicidae, seizing them by the neck and devour¬ 
ing them. Even larvae of the same size will devour each other. 
This genus is not only represented by few species but its 
distribution is very limited for the family of Culicidae. So far 
Distribution of Mucidus n.g.&P sorophora Desv. 
1**1 = Psorophora 
= Mucidus. 
as records go, and information sent to the Department and to 
myself by correspondents, the genus Psoropliorci only occurs on 
