a handbook of the mosquitoes of north america - Systematic Catalog ...

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CULICINI 105
Upper and lower head hairs double ........... .pumt.or
Upper and lower head hairs single ................ .22
Air-tube four times as long as wide .......... mitchellae
Air-tube three times as long as wide or less ......... .23
Anal gills as long as or longer than the anal segment.
5
in
fi
rmatus
....................................
1 trivittatus
Anal gills shorter than the anal segment, bud-like or
almost vestigial ............................. .24
Lateral abdominal hairs double on segments three to
six .................................. sollicitam
Lateral abdominal hairs triple on segments three to
five, single on six. .................. tcFniorhy2chu.s
Air-tube at least four times as long as wide ..... .fitchii
Air-tube never four times as long as wide, usually
three times or less .......................... .26
Ventral brush of only two three-haired tufts . . varipalpus
Ventral brush of many multiple tufts ........... .27
Both pairs of dorsal head hairs single ........... .28
Both pairs of dorsal head hairs never single ....... .30
Anal gills three to four times as long as anal seg-
ment ................................ near&us
Anal gills as long as or slightly longer than anal seg-
ment .................................... ..2 9
Anal gills bud-like, much shorter than anal segment
....................................... dorsalis
Single scale of comb with a broad apex bearing four
to seven stout spines, all about same size and
length .............................. .cowamunis
Single scale of comb with a pointed apex bearing a
single stout spine and numerous shorter lateral
spines ................................ .inzpiger
Both pairs of dorsal head hairs multiple ........... -31
Both pairs of dorsal head hairs not multiple ....... .33
Anal gills bud-like, much shorter than anal segment
...................................... cantator
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