348 
PACIFIC SCIENCE, VoL VII, July, 1953 
Poha swamp, Mar. 20, 1945 (JNB, M. Cohen, 
E. Winkler); lE(930-3) Sprague swamp, Do- 
ma Cove, Mar. 26, 1945 (JNB, M. Cohen); 
2M, 2E(933) Poha River, first tributary north 
of village, Apr. 1, 1945 (JNB); lL(958-2) 
West Poha swamp, Apr. 28, 1945 (J« J- Ciiccio, 
E. J. McCormick, V. R. Roa); lM(970-3) 
West Poha swamp. May 6, 1945 (JNB); 
3M(1221) Sprague swamp, Doma Cove, rest- 
ing on tree buttresses, June 7, 1944 (JNB); 
1E(1283) West Poha swamp, flying, Nov. 3, 
1944 (L. J. Lipovsky); 2M, 1P(1405) Tassa- 
faronga, flying, May 7, 1945 (M. Cohen, E. 
Winkler); 3L, Tenaru, Oct. 18, 1943 (J. G. 
Eranclemont) ; lE(K-888), Dec. 24, 1943 (K. 
L. Knight); 5M, 4E, 8L(K-892) Dec. 26, 1943 
(K. L. Knight); 2L(K-897) Dec. 27, 1943 
(K. L. Knight); IM, lL(K-949) Aug. 24, 
1943 (K. L. Knight); 5L(0-13) Aug. 19, 1943 
(P. W. Oman); lE(0-37) June 16, 1944 (P. 
W. Oman); 1M(0-251) Sept. 4, 1944 (P. W. 
Oman); lL(G-37) Dec. 3, 1943 (A. B. Gur- 
ney); 4L(G-74) Nov. 26, 1943 (A. B. Gur- 
ney); 4L(G-90) Dec. 5, 1943 (A. B. Gurney); 
1L(M-130A) July 22, 1944 (H. E. Milliron). 
Uranotaenia civinskii is named in honor of 
Stanley Civinski, who contributed greatly to 
the knowledge of the mosquitoes of Guadal- 
canal through a large number of valuable 
collections. 
Variation 
There is a marked variation in the extent 
and intensity of the light-scaling of the head 
of the adults, but normally the orbital light 
line is wide and a characteristic light cobalt 
blue. The light thoracic ornamentation is 
somewhat variable in extent and coloration. 
The light streak on the stp is normally almost 
a pure white but may show a bluish tinge. 
The light-scaling of the wing is also quite 
variable but is usually extensive and distinctly 
cobalt blue. The abdominal light-scaling is 
extremely variable. In the female it is rarely 
reduced on segments 2 and 3. In some speci- 
mens it is more extensive and includes a por- 
tion of segment 1 which in the majority of 
specimens is a lighter brown than the other 
dark portions of the abdomen. In the male, 
the light-scaling is usually confined to seg- 
ments 3 and 4 and may be even reduced to 
segment 4 alone; a few specimens (including 
the allotype) show a small light patch on 
segment 2 also. This variation in the abdom- 
inal light-scaling is apparently an individual 
variation for I have not been able to correlate 
it with any other variation in the adults, any 
characters of the immature stages, or any dif- 
ferences in breeding areas. In any given collec- 
tion all intergrades may be present, but usually 
the majority are either one or the other ex- 
treme. The light-scaling of the hind tarsi 
always includes the apex of segment 2 but 
is quite variable. In some specimens it in- 
cludes only the extreme apex of this segment 
while in others it may extend basad for as 
much as one fourth of its length. The hind 
tarsal light-scaling is also more extensive or 
at least more conspicuous in the female. The 
fore and mid tarsi are extremely variable in 
coloration but, as in the holotype, they are 
usually distinctly lighter than the rest of the 
segments of the leg, and in a few specimens 
they are dingy white. 
The variation in the chaetotaxy of the im- 
mature stages is shown in Tables 1 and 2. The 
range of variation is considerable, but no cor- 
relation of extremes could be made with any 
adult characters or between larva and pupa. 
No unusual variations were noted. 
The New Georgia specimens agree very ' 
well with those from Guadalcanal in all stages. ! 
In specimens from Bougainville the subapical | 
light patch on the outer face of the hind tibia 
of the female is more conspicuous, more dis- j 
tinctly white, and is usually prolonged basad 
as a streak. Since no other differences were 
noted in the Bougainville material and no 
individual rearings are available it appears 
best not to recognize this geographical varia- I 
tion as a distinct form for the present. 
Specimens examined: 102M; 104F; 76P; 
211L. Individual rearings: 11 larval. ! 
