242 
F. W. EDWARDS—THE AFRICAN 
The CuLIcALEs may be divided further into two main groups as follows :— 
Sub-section I. Cuntciprs. Palpi of $ longer than those of Q. 
Sub-section Il. Axpiprs. Palpi similar in both sexes. 
Further sub-division, except into genera, is unnecessary, and probably not 
advisable. 
In the following table are included all those forms of the CuLicipEs 
(Theobald’s sub-families Culicinae and Heptaphlebomyinae) which have no flat 
seales on the scutellum or on the middle part of the head. The genus Ludlowia 
has also been included owing to the similarity of the females to Culex, and the 
fact that not all the species have a flat-scaled head. 
wy) 
ae 
Table of Genera. 
Male palpi much shorter than proboscis —... niet sie a 2. 
a never much shorter than proboscis (in Theobaldia 
spathipalpis they often shrink and curl up, so as to 
appear shorter than the proboscis) _... va 5a 3. 
Ungues all simple in both sexes ... PROTOMELANOCONION, p. 244, 
Fore and mid ungues dentate in both sexes .... [two undescribed species]. 
Male palpi apparently 2-jointed sine aS va Sac aa 4, 
Be ss 3-jointed sla ots was : one 5. 
Fore and mid ungues of female simple ; first PSPs Tb in female 
shorter than second; wings nearly bare on lower half 
LuDLowIA, p. 244. 
Fore and mid ungues of female dentate ; first fork-cell in female 
longer than second ; thorax deep yellow at sides BANKSINELLA, p. 245, 
Last two joints of male palpi thickened, terminal usually shorter 
than penultimate and turned slightly downwards (fig. 1)... ae 6. 
Last two joints of male palpi thin, mucronate and curved upwards 9. 
Fore and mid ungues of male and female dentate (both claws)... Tr 
All ungues of female, and hind pair of male, simple cr oa 8. 
Female palpi more than half as long as proboscis ; wing-scales 
broad, legs densely clothed with outstanding scales Mucrpus, p. 246. 
Female palpi less than half as long as proboscis ; wing-scales 
mostly narrow ; legs without outstanding scales OCHLEROTATUS, p. 246. 
Smaller claw on fore and mid tarsi of male toothed ; large species 
THEOBALDIA, p. 251 
Smaller claw on fore and mid tarsi of male not toothed ; medium- 
sized, usually yellow species He TAENIORHYNCHUS, p. 251. 
Terminal joint of male palpi very short (fig. 2) ; wing-scales all 
broad ... se : as oe 5h Mansonrorpgs, p. 253. 
Terminal joint of ts palpi nearly as long as or longer than 
penultimate ; wing-scales mostly narrow ... oA ae same Kay 
Male palpi with a row of outstanding transparent whitish scales ; a 
row of flat opalescent scales round the eye-margins in both sexes 
CuLiciomy!a, p. 254. 
Male palpi without such scales (fig. 3); flat scales not continuous 
round eye-margins ... che ne Sts ray CULEX, p. 256. 
