200 
PACIFIC SCIENCE, Vol. V, April, 1951 
dorsum narrow-scaled, a median anterior 
diamond-shaped group of these dusky, the 
remainder golden; the lateral broad-scaled 
area creamy-yellow except for a dark patch at 
the dorsal margin and sometimes one on a 
level with apn. Scutum with yellow scales 
scattered over whole surface, in addition con- 
spicuous aggregations of these scales occur- 
ring along anterior border, on the antero- 
lateral area, above the wing base, and on the 
prescutellar area. Apn with a few narrow 
yellowish scales; ppn with a few dark narrow 
scales dorsally. Subspiracular area with a few 
dusky hairs. Fore tarsus with a few pale basal 
scales on III, with pale yellowish scales 
basally and apically on IV, V all pale yellow- 
ish. Mid and hind tarsi with narrow basal pale 
yellowish bands on II-IV, similar apical 
bands on I-IV, V all pale yellowish. Tergites 
with a baso-lateral patch of silvery-white 
scales, the basal bands (which are variable in 
occurrence and width) either separate from 
these, or only narrowly connected. Sternites 
white or creamy, with broad apical brown 
bands. 
Larva: 
Unknown. 
Types: 
Holotype. Male, genitalia separated (B.M. 
1929-599 from Helsingfors Mus.), Calapan 
(erroneously printed '’Calopan” on label), 
Mindoro Island, Philippines, February 1, 
1916 (Bdttcher collection). Paratypes. Four 
females, same data as for holotype. No habi- 
tat data given. 
The holotype and all the paratypes are de- 
posited in the British Museum (Natural 
History), from which they were generously 
loaned to us by permission of the Trustees. 
Discussion: 
Edwards (1932:166) divided the subgenus 
Aedimorphus into eight groups. Later, Knight 
and Hurlbut (1949:29) modified this classifi- 
cation by combining Groups D and C. The 
new species described above is a member of 
this combined group. Group C {alboscutel- 
latus-alhocephalus), a group with numerous 
species in both the Ethiopian and Oriental 
Regions (some intrusions into the Austral- 
asian and Palaearctic Regions from the latter). 
The Pacific species of Aedimorphus belonging 
to this group are as follows: alhoscutellatus 
(Theobald), argenteoscutellatus Carter and Wi- 
jesundera, culicinusp&wdisds, jamesi (Edwards), 
lowisi (Theobald), niveoscutellus (Theobald), 
oakleyi Stone, orhitae Edwards, pampangensis 
(Ludlow), punctifemore (Ludlow), and senya- 
vinensis Knight and Hurlbut. 
A. mindoroensis is most closely related to 
lowisi, a species that is known only from the 
Andaman Islands and from Morotai, Moluc- 
cas (this latter locality is a new record in 
Rozeboom, Knight, and Laffoon coll.). Ex- 
ternally, the adult of lowisi is indistinguish- 
able from that of mindoroensis. However, the 
male genitalia of lowisi differs in having the 
narrow basal portion of the dististyle equal to 
no more than half of the total length and in 
being evenly slender instead of being rather 
broadly tapered, in having the short tergal 
setae in a rather narrow band along the mesal 
margin, and in lacking any special arrange- 
ment of the sternal setae of the basistyle. 
Although the types of lowisi have been ex- 
amined by the senior author, no drawing was 
made of the ninth tergite so that it is not 
known if any differences occur there. Because 
of the nature of the similarities between these 
species, it seems likely that a single polytypic 
species is concerned. However, much more 
material must become available before this 
can be definitely determined. 
A. orhitae Edwards is similar to mindoroensis 
but differs in having the tarsal bands broader 
and whiter, in having a basal band on hind 
tarsal I, and in the markedly different form of 
the dististyle^ A. jamesi (Edwards) is distinct 
in having the tarsal bands basal only and in 
details of the male genitalia. 
All of the other Pacific species of Group C 
differ most notably in possessing all dark 
tarsi. 
