58 
PACIFIC SCIENCE, Vol. Ill, January, 1949 
Stegomyia in having the apical paddle margin 
serrate and terminal seta short and simple. 
Cephalothorax. — Postocular : 1 moderate, 
usually simple, occasionally two-branched; 2 
small, usually two-branched, occasionally sim- 
ple; 3 moderate, simple. 
Anterothoracic: 4 moderate, two- or three- 
forked; 5 moderate, simple or two- to three- 
branched; 6 long, stout, simple; 7 moderate, 
usually two-branched, occasionally simple. 
Dorsal: 8 small, usually two-branched, occa- 
sionally simple or three-branched. 
Supra-alar: 9 long, simple. 
Metanotum: 10 moderate, usually two-branched, 
occasionally simple or three-branched; 11 long, 
Stout, simple; 12 moderate, simple or two- 
branched. 
Abdomen. — Segment I: H long, stout, sim- 
ple; K long, stout, simple or two-branched; L 
small, two- to four-branched; M small, two- to 
five-branched; S long, simple or two-branched; 
T long, simple or two-branched; u small, sim- 
ple. 
Segment II: A short, stout; B long, simple or 
two-branched; C moderate, usually two- to three- 
branched, occasionally simple; c' moderate, 
simple; 1 long, simple or two-branched; 2 long, 
simple or two-branched; 3 moderate, simple or 
two- to three-branched; 4 small, two- to five- 
branched; 5 minute, simple. 
Segment III: A short, stout, slightly longer than 
A-II, simple; B long, simple or two-forked; C 
moderate, usually simple or two-branched, occa- 
sionally up to five-branched; c' small, relatively 
stout, simple; 1 long, simple or occasionally two- 
branched; 2 moderate, simple or two-branched, 
occasionally three-branched; 3 represented only 
by its socket; 4 small, two- to four-forked or sim- 
ple. 
Segment IV: A short, stout, a little longer than 
A-III; B long, simple; C moderate, simple or two- 
forked; c' small, rather stout, simple; 1 long, 
usually simple, occasionally two- or three- 
branched; 2 small, simple or two- to three- 
forked; 3 represented only by its socket; 4 mod- 
erate, two- or three- forked. 
Segment V: A stout, a little longer than A-IV; 
B long, simple, occasionally two-branched; C 
moderate, simple or two-branched; c' short, 
relatively stout, simple; 1 long, simple, occa- 
sionally two-branched; 2 small, usually two- 
forked, occasionally simple or three-forked; 3 
represented only by its socket; 4 moderate, 
simple or two-forked. 
Segment VI: A stout, a little longer than A-V, 
simple or forked near apex; B long, simple; C 
small, simple or two-branched; d small, stout, 
simple; 1 long, simple or occasionally two- 
branched; 2 moderate, usually two-branched, 
occasionally simple; 3 absent; 4 moderate, sim- 
ple or occasionally two-branched. 
Segment VII: A long, sometimes plumose, sim- 
FlG. 41. Aedes aegypti: dorsal aspect of right half 
of abdomen of male (after Macfie, 1920). 
