The Aedes Mosquitoes of the Philippine Islands^ 
L Keys to Species. Subgenera Mucidus^ Ochlerotatus^ and Finlaya 
(Diptera^ Culicidae) 
Kenneth L. Knight and William B. Hull^ 
INTRODUCTION 
Extensive collections of mosquitoes made 
in the Philippines during the last war have 
resulted in a great increase in our knowledge 
of the culicid fauna of that island group. This 
has been particularly true for the genus Aedes. 
In 1945 Bohart listed 34 Aedes species for the 
Philippines, of which only 6 were known in 
the larval stage from Philippine specimens. 
The present series of three papers, of which 
this is the first part, treats 74 named species 
and subspecies, and Philippine larval speci- 
mens were seen for 56 of these. 
Material Used 
This study has been based primarily upon 
the collection made from April to October, 
1945 , by a branch unit of U. S. Naval Medical 
Research Unit No. 2 (NAMRU-2) on the 
islands of Luzon, Leyte, Samar, Palawan, Bala- 
bac, Culion, Busuanga, Mindanao, Basilan, 
and Jolo. This collection, consisting very 
largely of adults associated with their larval 
and pupal skins, was gathered by L. E. Roze- 
boom, K. L. Knight, J. L. Laffoon, and D. R. 
Johnson. In addition, numerous non-tech- 
nical service personnel contributed consider- 
ably to the task. 
The second largest source of material 
^The opinions or conclusions contained herein are 
those of the authors and are not to be construed as 
official or reflecting the views of the Navy Department 
or of the naval service at large. Manuscript received 
November 27, 1950. 
^Naval Medical Research Institute, Bethesda, Mary- 
land, Lieutenant Commander, MSC, USN, now with 
Naval Medical Research Unit No. 3, Cairo, Egypt; and 
Lieutenant, MSC, USN, respectively. 
Studied was the collection of the U. S. 
National Museum, which is particularly rich 
in Philippine type specimens. Before the last 
war, the Philippine mosquito collection of 
the National Museum consisted principally 
of material collected by the U. S. military oc- 
cupation forces following the Spanish - 
American War and contributed by them 
through C. S. Ludlow, The only other im- 
portant source during this period was the 
collecting of C. S. Banks. He sent excellent 
material of many species to both the British 
Museum and the National Museum, but re- 
tained most of the types in Manila, where they 
were all destroyed in the seizure of that city 
by the Allied forces in World War II. Follow- 
ing World War II, several collections of 
mosquitoes from the Philippines were de- 
posited in the National Museum. Important 
among these contributions are those of H. 
Hoogstraal, K. V. Krombein, S. E. Shields, 
J. H. Paullus, J. T. Medler, and A. B. Gurney. 
Additional important collections, all made 
during World War II, that were drawn upon 
for this paper are those of the Academy of 
Natural Sciences of Philadelphia, collected 
by H. R. Roberts; the California Academy of 
Sciences, collected by E. S. Ross; and Cornell 
University, collected by J. G. Franclemont. 
Representative portions of the Aedes collec- 
tion of the Philippine Bureau of Health 
(made by F. E. Baisas and his associates) 
were also drawn upon. 
A number of the types of Philippine species 
occur in the British Museum and these were 
all extensively studied and compared by the 
senior author in 1946. 
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