174 
PACIFIC SCIENCE, Vol. VIII, April, 1954 
mm. from the apex. The inversion membrane 
(eighth segment) is 2.55 mm. long by 0.23 
mm. wide at its widest point. The rasper ex- 
tends to within 0.67 mm. of the base of the 
segment. The basal portion of the ovipositor 
is 1.92 mm. long by 1.17 mm. wide at its wid- 
est point. The spiracles are situated 0.4 mm. 
from the base of the segment, measured on 
the lateral margins. 
Length: Body, 6. 5-7. 3 mm.; wings, 6.0- 
6.5 mm. 
TYPE LOCALITY: Panay, Antique Province, 
Batbatan Island, Philippines. 
Location of type: Bezzi said it was in his 
collection. According to Horn and Kahle 
(1935) his collection went to the Museo 
Civico di Storia Naturale, Milan. 
A large series of specimens have been stud- 
ied from the following localities in the Philip- 
pines, all reared from Dracontomehim dao fruit; 
Madhum, Mindanao, Aug., 1950 (F. E. Skin- 
ner); Penal Colony, Davao, Mindanao, Aug., 
1950 (Skinner); Bugo, Mindanao, Jan., 1950 
(Skinner); Pangi, Mindanao, Sept., 1950 
(Skinner); Gamalang, Mindanao, Sept., 1950 
(Skinner); Lawayon, Davao, Mindanao, Mar., 
1950 (Skinner). 
The following parasites were reared from 
this species in the Philippine Islands: Opius 
longicaudatus var., 0. skinneri Fullaway, 0. 
fletcheri var., Pachycrepoidens duhius Ashmead, 
Galesus sp.?, Spalangia sp.?, and Encyrtidae 
genus and sp.? 
Dacus {Strumetd) liizonae n. sp. 
Fig. 15 
This species runs to Dacus nigrotihialis (Per- 
kins) in Perkins’ key (1938: 122) because of 
the brown to blackish front and middle fem- 
ora. It differs from this species in having the 
face largely yellow, not dark brown to black; 
by having the abdomen conspicuously marked 
with yellow, not chiefly or entirely dark col- 
ored; by having the basal segment of the 
female ovipositor shorter than the fifth ab- 
dominal segment, not longer; and by having 
the yellow vittae on the mesonotum broader. 
not pointed as in nigrotihialis (Fig. 15^). 
This species is very closely related to D. 
dorsalis Hendel, and only slight structural dif- 
ferences have been found by which they can 
be separated. The r-m crossvein is straight 
and is distinctly shorter than in dorsalis. The 
cross vein is approximately equal in length to 
the basal section of vein M 1+2 and is slightly 
less than half as long as the section of M 1+2 
from the r-m to the m crossveins (Fig. 15<i). 
In dorsalis the r-m is curved; it is about 0.33 
longer than the basal section of M 1+2 and 
about 0.66 as long as that section from r-m 
to m (Fig. 15^). The ovipositor is very similar 
in the two species but apparently is slightly 
smaller in luzonae. This species differs con- 
siderably from dorsalis in coloration and is 
easily distinguished by a number of charac- 
teristics. D. luzonae has the front and middle 
femora predominantly brown to black, not all 
yellow; the postsutural yellow vittae on the 
mesonotum end just before the inner supra- 
alar bristles (Fig. 15^), not beyond them; the 
facial spots are much more enlarged and ex- 
tend to the oral margins (Fig. 15^); the sides 
of the abdomen are more extensively black- 
ened, and a large black spot is present on each 
side of the fifth tergum (Fig. 15<:). The pol- 
linosity of the mesonotum is also arranged in 
a definite pattern (Fig. 15^?), not evenly dis- 
tributed over the mesonotum as in dorsalis, 
and the supraalar areas of the mesonotum are 
black, outside of the yellow vittae, not rufous. 
MALE AND FEMALE. Head: Front nearly twice 
as long as wide with indistinct brownish spots 
present at the bases of the bristles. The facial 
spots extend over the lower one half to three 
fifths of the antennal grooves, are broadened 
on their lower portions, and extend to the 
lower corner of the face (Fig. 1‘hb). The second 
antennal segment is nearly twice as long as 
the first. The third segment is 2.5 times as 
long as the second and is dark brown to 
black. The hind portion of the occiput is 
brown to black. Thorax: The mesonotum is 
predominantly black, with the gray pollinose 
areas set off into a roughly H -shaped pattern 
