78 
PACIFIC SCIENCE, Vol. Ill, January, 1949 
near middle; 4 medium, three-forked near mid- 
dle; 5 minute, simple on this and all following 
segments. 
Segment III : A small, simple spine; B long, sim- 
ple, plumose; c medium, simple or rarely two- 
forked near apex; 1 medium, two-branched; 2 
small, three-branched; 3 represented only by 
its socket on this and segments IV and V; 4 
small, two-branched. 
Segment IV: A small, simple; B long, three- or 
four-branched, plumose; C medium, two- to 
four-branched, plumose; 1 medium, three- 
forked; 2 small, three-forked; 4 small, four- 
forked. 
Fig. 55. Culex binigrolineatus: dorsal aspect of right 
half of abdomen of male (after Knight and Roze- 
boom, 1945). 
Segment V: A small, simple; B long, three- to 
five-branched, plumose; C long, two- to four- 
branched, plumose; 1 medium, three-forked, 
plumose; 2 small, four-forked; 4 medium, two- 
branched. 
Segment VI: A small, simple; B exceedingly 
well developed, four- to seven-branched, plu- 
mose; C long, plumose, simple to four-branched; 
1 long, five-branched, plumose; 2 small,, four- 
forked; 3 absent; 4 small, two-branched. 
Segment VII: A medium, three-branched, plu- 
mose; B medium, three- to seven-branched, plu- 
mose; C small, two-forked, plumose; 1 medium, 
simple, plumose; 2 long, five-branched, plu- 
mose; 4 small, three-forked. 
Segment VIII: A strongly developed, fan-like, 
nine- to fourteen-branched, plumose; A' me- 
dium, simple, plumose. 
Paddle: Long, roughly oval, with apex some- 
what drawn out into a point; only basal third 
of lateral margin buttressed, entire margin 
smooth; without terminal setae. 
Subgenus Culex Linnaeus 
Diagnosis. — The four New Guinean species 
of this subgenus known in the pupal stage all 
have seta K on segment I two-forked; seta A on 
segments II- VI is a small, simple spine set close 
to the postero-lateral corners of the segments; 
setae A- VII and A-VIII are fairly well-developed 
plumose tufts placed some distance anterior to 
the postero-lateral corners of the segments; setae 
4-II and 4-III well-developed tufts placed an- 
terior to and usually between B-II and c'-II, and 
between B-III and 2 -III respectively. 
Key to Species of Culex (Culex) 
1. Paddles with medial one-half conspicu- 
ously brown-pigmented; without acces- 
sory seta on paddle (Fig. 56) 
_ C. squamosus 
Paddles without brown pigment; accessory 
seta of paddle present 2 
. 2. Seta 1 on segments III- VI simple or two- 
forked, never a well-developed tuft ( Fig. 
57) - G. sitiens 
'Seta 1 on segments III— VI a well-developed 
tuft of three or four branches. 
