22 
PACIFIC SCIENCE, Vol. Ill, January, 1949 
Metanotum: 10 medium, simple; 11 small, 
three -forked near base; 12 long, five- to six- 
forked near basal one-third. 
Abdomen. — Segment I: H small, three- to 
six-forked near base; K small, three- to four- 
forked near basal one-third; L medium, four- 
forked near base; M small, averages five-forked, 
range from four to six; S long, four- to five- 
forked near basal one-third; T medium, four- to 
six-forked near basal one-third; U small, two- 
to five-branched. 
Segment 11: A very small, blunt-tipped, trans- 
parent; B medium, stout, with three or four fine 
side branches; C medium, averages twelve- 
branched, each branch of which may be split 
Fig. 11. Bironella soesiloi: dorsal aspect of right 
half of abdomen of male from Hilimoi, Papua. 
into three or four smaller branches; c' small, 
two- to six-forked near apex; 1 long, averages 
five-branched, range from four to seven; 2 long, 
averages six-branched; 3 medium, seven- to 
nine-branched; 4 small, averages nine-branched; 
5 minute, simple on this and all following seg- 
ments. 
Segment III : A small, about one and one-half 
times the length of A-II, blunt-tipped; B me- 
dium, eight- to twelve-branched; c long, ten- 
to eigh teen-branched; c' medium, stout, with 
six to ten small side branches; 1 medium, five- 
branched; 2 small, with several small side 
branches or two-forked near apex; 3 repre- 
sented only by its socket on this and segments 
IV and V; 4 medium, seven- to nine-branched. 
Segment IV: A long, slightly curved and tapered 
to a fine point, about eight times as long as 
A-III; B medium, nine-branched; C long, aver- 
ages ten-branched; d small, six- to ten-branched; 
1 medium, three-branched; 2 small, simple to 
three-forked near apex; 4 medium, six- to nine- 
branched. 
Segment V: A as A-IV, about one and one-half 
times as long as A-IV; B long, averages eleven- 
branched; C long, averages eleven-branched; d 
medium, two-branched; 1 medium, four- 
branched; 2 medium, three-branched; 4 small, 
six-branched. 
Segment VI: A as A-V, but twice as long as 
A-IV; B long, averages eight-branched; C long, 
averages seven-branched; d medium, simple; 
1 medium, three-branched; 2 small, simple; 4 
small, four- or five-branched. 
Segtnent VII: A as A- VI, same length as A- VI; 
B long, averages five-branched; C medium, 
averages seven-branched; d small, three-forked 
near middle; 1 small, three-branched; 2 small, 
simple; 4 small, six-branched. 
Segment VIII: A slightly longer than A-VII, 
with eleven to nineteen side branches; A' me- 
dium, two- to four-forked near basal one-third. 
Paddle: Midrib strong, reaching apex; almost 
the entire lateral and medial margins fringed 
with fine hairs; terminal seta long, simple, 
slightly hooked at apex; accessory seta small, 
three- to six-forked near middle. 
