42 
long, simple or two-branched; c' very small, 
simple or two-forked near apex; 1 long, simple 
or three-forked near apex; 2 very small, five- to 
seven-forked near base; 3 represented only by its 
socket; 4 long, two- or three-forked near base. 
Segment VI: A small, simple spine; B very long, 
simple; C long, two- or three-branched; 1 long, 
simple, well removed from lateral margin; 2 
long, three- or four-forked near base; 4 long, 
two-branched. 
Segment VII: A medium length, stout, two- 
branched, plumose; B very small, three-forked 
near base; C long, simple; 1 very small, two- 
branched, each branch two- or three-forked near 
Fig. 28. Aedes aurantius chrysogaster: dorsal aspect 
of right half of abdomen of male from Aoeki Island, 
Dutch New Guinea. 
PACIFIC SCIENCE, Vol. Ill, January, 1949 
apex; 2 long, simple or two-forked near apex; 
4 long, simple. 
Segment VIII: A medium length, stout, plu- 
mose, three- or four-branched, each branch 
forked near apex; A' longer than A, two-forked 
near base. 
Paddle: Roughly oval-shaped, margin smooth 
for the most part, but with very fine inconspicu- 
ous serrations near apex; terminal seta small, 
simple; midrib strong, not reaching apex, divid- 
ing the paddle unequally, the lateral face a 
little wider than medial face. 
Specimens examined. — One pupal exuvium 
and two pupae of males from Aoeki Island, 
Dutch New Guinea, collected by Dr. Arthur 
G. Humes. 
Subgenus Ochlerotatus Lynch-Arribalzaga 
The pupa of only one species of this sub- 
genus has been described in detail, hence the 
preparation of a diagnosis of Ochlerotatus must 
wait for further study, especially of the numer- 
ous North American species. From what little 
is known about them it is probable that species 
of this subgenus will key down to the subgenus 
Aedes. 
Aedes (Ochlerotatus) vigilax (Skuse) 1889 
Fig. 29 
Pupa undescribed, but Hill (1923: 71) in- 
cluded figures of the posterior margin of seg- 
ment VIII, the paddles, and trumpet which 
have been redrawn and included here. Cooling 
( 1924: 19) included a few notes on the pupae 
but gave nothing which is of any diagnostic 
value. 
Subgenus Finlaya Theobald 
Diagnosis. — The eight species which are 
described in this paper have the following fea- 
tures in common. Seta H small, K much longer 
and stronger, subequal to or longer than S and 
T. Seta 2 on segment II long, various in its 
length relations to B-II; C-II not more than six- 
branched, each branch simple, medium length; 
B and C on III rather close together, B anterior 
to C in some species. Paddle with margin either 
smooth or finely serrate, never with a fringe 
of fine hairs. 
