Mosquitoes of New Guinea — Penn 
11 
Seta K on segment I usually two- 
branched; at least some of cephalo- 
thoracic setae conspicuous 19 
19. Seta C-II always more than fifteen- 
branched.... Culex (Culiciomyia) p. 72. 
Seta C-II never more than fourteen- 
branched, usually much less 20 
20. Trumpet long, length more than nine 
times the greatest diameter of meatus; 
pinna short, less than one-fifth of the 
total length of trumpet.... 
Culex ( Lophoceraomyia ) p. 69. 
Trumpet short, length never more than 
five times the greatest diameter of 
meatus; pinna long, more than one- 
fourth of total length of trumpet 
Culex (Culex) p. 78. 
21. Paddies elongate, length more than twice 
greatest width 
Aedes (Macleaya) p. 54. 
Paddles more or less rounded, length 
never more than one and one-half 
times the greatest width.. 22 
22. Dorsal seta (8) of cephalothorax set well 
behind the bases of the trumpets 23 
Dorsal seta (8) of cephalothorax set 
between or only slightly behind the 
bases of the trumpets 24 
23. Seta S on segment I a small tuft; seta C r - 
II absent Armigeres p. 64. 
Seta S on segment I long, simple or two- 
branched, but never a tuft; seta c'-II 
present Aedes ( Stegomyia ) p. 55. 
24. Setae H and K wide apart, K as near to L 
as to H Aedes ( Banksinella ) p. 61. 
Setae H and K near together and well 
apart from L and M 25 
25. Seta B very long, exceeding posterior 
margin of following segment on at 
least segments IV and V 26 
Seta B smaller, not reaching posterior 
margin on any segments 29 
26. Seta C-II separated from B-II by nearly 
the length of segment II; trumpets 
long with fairly well-developed tra- 
cheoid area, though the rings are not 
complete Aedes (Mucidus) p. 40. 
Seta C-II usually rather close to B-II, 
separated by not more than half the 
length of segment II; trumpets short, 
tracheoid area obsolete, or at most 
represented by one or two incomplete 
rings 27 
27. Seta C-II a medium-length, ten- to fif- 
teen-branched, often dendritic tuft 
Aedes (Aedes) p. 62. 
Seta C-II of various lengths, not over six- 
branched, never dendritic 28 
28. Paddles with smooth or serrate margins, 
never with a fringe of hairs 
Aedes (Finlaya) p. 42. 
Paddles with a marginal fringe of long 
fine hairs.. Aedes (Skusea) p. 54. 
29. Setae B and C simple on most of the seg- 
ments 
Aedes ( Leptosomatomyia ) p. 63. 
Setae B and C branched or forked on 
most of the segments 
Aedes ( Aedimorphus) p. 60. 
Genus ANOPHELES Meigen 
DIAGNOSIS: Trumpets short and widely 
open. Abdomen with seta A spine-like, stout, 
and placed at or close to the postero-lateral 
corners of segments III to VI. Paddles with a 
terminal seta at end of midrib and a smaller 
accessory seta subapically. 
Key to Species of Anopheles 
1. Setae B and C on IV -VII multi-branched 
with central branch nearly twice as 
long and stout as other branches; ter- 
minal seta of paddles short, straight, 
and with two to four side branches 
(Fig. 5) . . 
A. (A.) barbirostris barbirostris 
Setae B and C on IV-VII never multi- 
branched, at most four- to five- 
branched and all branches subequal; 
terminal seta of paddles longer, 
straight or hooked 2 
2. Paddle with a series of strong denticles 
on the lateral margin 3 
Paddle without denticles, fringe consist- 
ing of fine hairs only 5 
3. Seta A-V approximately equal to A-III 
in length; terminal seta of paddle 
straight A. (M. ) lungae 
Seta A-V approximately two or three 
times the length of A-III; terminal seta 
of paddle hooked 4 
4. Seta A-VI no more than a third longer 
than seta A-V ; terminal seta of paddle 
weak (Fig. 6) A. (M. ) karwari 
Seta A-VI more than twice as long as 
seta A-V; terminal seta of paddle 
strong (Fig. 7) 
A. (M.) subpictus subpictus 
