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1. The siphon
or distal half of the air tube is greatly attenuated, and the apical part
has saw-like teeth for penetrating plants _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _Mansonia spp.
Blanchard
The
siphon is larger than previously described _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2
2. The head
is longer than it is broad or at least as long as broad that makes it look
more rounded. Abdominal segment #8
has a
lateral chitinous plate with one row of comblike teeth on the
posterior margin. The antennae are
not inflated or very large
_ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Uranotaenia
spp. Lyn. Arrib.
The
head is always broader than it is long.
Abdominal segment #8 does not have a chitinous plate save for a few
species of
Psorophora and all Aedomyia spp. in which case their
antennae are inflated and flat _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 3
3. The air tube has pecten with the teeth
almost always denticulate _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4
The air
tube does not have pecten or rarely just a few simple teeth that are not
denticulate _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ 9
4. The air tube has a few pairs of ventral
hair tufts (at least 2 pairs) and sometimes scattered dorsal hairs or the
air tube is
especially long and slender with hair tufts absent _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ 5
The air
tube is different from that previously described and with never more than a
single pair of hair tufts. Or
additionally
there may be a median ventral line of hair tufts _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7
5. Mouth brushes are prehensile and may
appear as matted tufts or as rods (Sugenus Lutzia) _ _ _ _ _ _ _ Culex spp. Linnaeus
Mouth
brushes are not prehensile and composed of long hairs _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6
6. The head
has a showy pouch on each side enclosing the mandible, which has a hairy
base _ _ _ _ _ Deinocerites spp. Theobald
The
head is without a pouch and the mandibles do not have a hairy base _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ Culex spp. Linnaeus
7. The air tube has a pair of basal hair
tufts or only basal single non-tufted hairs _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Culiseta spp. Felt
a. The air tube has a pair of basal hair
tufts and a median row of ventral tufts (Subgenus Climacura) _ _Culiseta spp.
Felt
b. The air tube has a single pair of
ventral tufts near the middle of the tube or beyond. If tufts are absent or vestigial then
the anal segment is ringed by the dorsal plate and pierced by some
of the tufts of the ventral brush_ _ _ _ _ _ _ _ _ _ _ 8
8. The anal segment is completely ringed
by the dorsal plate and the plate is pierced on the mid-ventral line by
tufts of the ventral
brush. The air tube is frequently swollen and has a pecten of several
teeth_ _ _ _ _ _ _ _ _ _ Psorophora
spp. Rb. Desvoidy
The
anal segment is not entirely ringed by the dorsal plate, but if it is the
ventral brush is confined posteriorly to the ring. The
tufts
do not pierce the dorsal plate _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Aedes spp.
Meigen & Haemagogus spp. Williston
9. The antennae are short and almost
cylindrical but never inflated.
There is a simple hair on the shaft. _ _ _ _ _ _ _ _ _ _ _ _ 10
The
antennae are longer and may be cylindrical, inflated or flattened. There is a branched hair on the shaft _
_ _ _ _ _ _ _ 12
10. The
ventral tuft of the air tube is large _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 11
The
ventral tuft of the air tube is small and simple (Malayan species)_ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ Zeugnomyia sp. Leicester
11. The ventral brush of the anal segment is
well developed with a barred area (Oriental & Australasian
species) _ _ _ _ _ _ _ _ _
_ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ Armigeres
spp. Theobald
The
ventral brush of the anal segment never has more than 4 pairs of single
hairs (usually 1 or 2). They never
form a barred
area (African species) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Eretmapodites
spp. Theobald
12. The antennae are very large and
flattened but not cylindrical in cross section (South and Central America,
Africa, Oriental
species)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Aedomyia
spp. Theobald
The
antennae are not very large and flattened and they are usually cylindrical in
cross section _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ 13
13. There are usually large sclerotized
plates present dorsally on abdominal segments 6 to 8 or rarely they may be
absent
_
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _Orthopodomyia
spp. Theobald
Sclerotized plates are absent on abdominal segments 6 to 8 _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 14
14. The antennal hair tufts are distant from
apex. The anal segment is ringed by
a dorsal plate_ _ _ _ _ _ Ficlbia
spp. Theobald
a. The hair tufts are placed near antenna
apex. The anal segment is ringed by
a dorsal plate _ _ _ _ Hodgesia
spp. Theobald
b. The hair tufts are placed before the
antenna middle. The anal segment is
not ringed by the dorsal plate_ _ _ _ _ _ _ _ _ _ _
_ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ Orthopodomyia spp. Theobald_
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