1 (] A Monograph of Culicidae. 
in Anopheles long in both sexes, in Aedes short in both sexes, 
&c. ; the number of joints varies from two in Aedes to four- 
in Anopheles and live in Megarhinus. Arribalzaga gives the 
palpi in Aedes as one-jointed; the basal joint, I fancy, was 
overlooked. In Anopheles the 9 palpi are four-jointed, the £ 
three-jointed, but there exists in the base a small constriction 
which makes the 9 appear five-jointed; in the £ constrictions 
also appear and make the palpi look six-jointed, but I prefer to 
look upon the 9 palpi as four-jointed and the $ as three-jointed, 
the basal joint being very much elongated, whilst in Megarhinus 
Fig. 12. 
Antennae of Culicidae. 
1. Antenna of 9 Culex. 2. of Culex. 3. Apex of 
d* antenna of Aedeomyia. 4. Base of 9 antenna of 
Megarhinus. 
they are five-jointed in both sexes. In the 9 Culex they vary 
from three to four (sometimes, owing to a constriction, five), in 
the £ three-jointed (five or six-jointed if we take the constric¬ 
tions as representing articulations*). The antennae (Fig. 12) 
are plumose in the $ , pilose in the 9 ? four teen-jointed in the 
9 , fifteen-jointed in the £ ; the basal joint is globose and may 
be nude or scaly; the second joint may be swollen, elongated, or 
normal, and is usually more or less scaly ; in the $ the last two 
joints are long and thin except in Aedeomyia (Fig. 12, 3). 
* The subject of the palpi is a very complicated one, and will take some 
time to work out. Arribalzaga figures the constrictions as joints. 
