8o 
different species and is highly specialised in the 
Anophelinae. 
Ahe Antennae. —The size and position of the 
antennal tuft or tufts is of systematic importance. 
Note the different position of these tufts in different 
genera of Culicines , e.g., Aaeniorhynchus (tenax ) and 
Culex (fatigans) (Fig. 28). In other cases there is 
considerable variety in position in different species of 
the same genus, e.g., Culex. Note the peculiar 
antennae of the cannibal larvae C. concolor and Mucidus 
spp., Scataphagoides spp. In Stegomyia ( calopus ) 
the antenna is small and spineless and possess a single 
hair about the middle (Fig. 28). 
A he mouth parts :— 
(a) A he Clypeus. —The front portion of the head 
projecting between the antennae is smooth and semi¬ 
circular in shape. The most anterior portion is the 
clypeus. 
(b) Feeding Brushes. —These are attached on each 
side to the under surface of the clypeus. They resemble 
shaving-brushes and are employed in collecting the 
minute food particles on which the larva feeds. 
In the fully grown larva a snout-like process bearing 
a tuft of hairs projects forward between the brushes. 
(e) Mandibles. —Are stout chitinous structures one 
on either side and dorsal to the maxillae and maxillary 
palps. Each mandible bears stout hairs, for combing 
the shaving brushes, strong teeth meeting those on its 
fellow for masticating, and fine hairs which project 
into the mouth cavity. 
(d) Maxillae. —They form a great part of the floor 
of the mouth. The maxilla is covered with series of 
hairs which serve the purpose of combing the feeding 
brushes. 
(e) Maxillary Palps. — Articulating with the 
