18. 
20. 
21. 
23. 
24. 
25. 
_ 26. 
THE MOSQUITOES OF THE SOUTHEASTERN STATES 
branches; palmate hairs on segments 1 and 2 partially developed; 
antepalmate hairs on segments 4 and 5 usually single, sometimes dou- 
PEO ip bers] Cos | Seer ee a ree OR eS TW ae A. walkeri 
Five pairs of functional palmate hairs (segments 3 to 7); antepalmate 
hairs on segments 4 and 5 single or double______-___-____________ 
Only three pairs of functional palmate hairs (segments 4 to 6); ante- 
palmate hairs on segments 4 and 5 with three to six branches (occasion- 
ELM vic (NVC) tsa ene ee es ne es Rae ee Bt Ph ES A. georgianus 
. Leaflets of palmate hairs on segments 3 and 7 slender, usually somewhat 
smaller than those on segments 4 to 6 and mostly with smooth mar- 
gins. [Antepalmate hairs on segments 4 and 5 single or double; dis- 
tance between clypeal hairs variable. ]---___-_______._____ z A. bradleyi 
Palmate hairs on segment 3 with broad leaflets, usually notched or ser- 
rated on outer half and about equal in size to those on segments 4 to 
6. [Antepalmate hairs on segments 4 and 5 usually double, except in 
specimens from central Florida, in which they are usually single. ] 
A. punctipennis 
URANOTAENIA 
Upper lateral hair of abdominal segments 1 and 2 double___-__-__ U. lowti 
Upper lateral hair of abdominal segments 1 and 2 triple (lower hair 
Sine] eeinabothy Species) Baska cs see met Ba ee U. sapphirina 
MANSONIA 
Anal segment with ventral tufts piercing the sclerotic ring; antenna 
with two long hairs from a notch beyond the tuft, extending to end 
of antenna ; lateral spine of maxilla serrate_________.______ M. titillans 
Anal segment without ventral hair tufts piercing the sclerotic ring; 
antenna with two short hairs from a notch beyond tuft, extending 
less than halfway to tip; lateral spine of maxilla smooth 
M. perturbans 
ORTHOPODOMYIA 
. Segments 7 and 8 of abdomen each with a large sclerotic plate (a much 
smaller one usually present also on segment 6). [Lateral hairs of 
abdominal segments 1 and 2 comparatively short, multiple; tuft of 
air tube with many branches; anal segment ringed by the plate, the 
LAteralesharesimele ge oe were a ee Os i eS Le O. signifera 
Abdominal segments without sclerotic plates. [Lateral hairs of seg- 
ments 1 and 2 double or triple, long; tuft of air tube with three or 
four hairs; anal segment not completely ringed by the plate, the 
lateral hair double or triple.]_-____________ eerie ne dO LOE 
CULEX; THEOBALDIA 
Both upper and lower head hairs multiple, long. [Comb of many scales 
TPR ROACH | aera oe a i hee iss ib 
Upper and lower head hairs not both multiple__________________ 
Air tube with hair tufts or a few single hairs beyond pecten, none at 
10 Ac Ceara carn Se er ees Be oe Ee ete ee ose SAT Culex (Culex) 
Air tube with a pair of multiple hair tufts at base; pecten with a short 
row of strong teeth, followed by a row of long setae (ice 23. C) ear: 
EUDEIStOM ES abOUtito sol ee ee ee T. inornata 
Antenna with the hair tuft placed in a constriction at outer third, the 
part beyond the tuft more slender; hair tufts of tube multiple, mostly 
ie par albele line sae ssa = ee a shortest 
Antenna rather short, of uniform shape, the hair tuft placed near mid- 
dle; air tube about 4:1, with four to six long single hairs irregularly 
placed and one pair of small Subapical tufts, usually triple. C. restuans 
Anal giils four, normal, tapered; pecten spines evenly spaced_________ 
Only two anal gills, thick and bulbous; apical pecten spines progressively 
more widely spaced. [Air tube spinose, 5 or 6:1, with six or seven 
pairs of multiple ventral tufts, two or three of the basal pairs attached 
before end of pecten; lateral abdominal hairs on segments 3 to 6 
double or triple.] Florida keys_ = C. bahamensis 
83 
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