Studies in Fruit Flies. Part I. Dacini — HARDY AND Adachi 
161 
er (1.2 mm.). Piercer narrower (0.13 mm. 
wide) (Fig. 6a) and rasper extending to 
within 0.36 mm. of base of inversion 
membrane. Femora yellow to rufous and 
humeri bordered with black. (Philippine 
Islands) cognatus n. sp. 
Dacus (Strumeta) apicalis de Meijere 
Dacus apicalis de Meijere, 1911, Tijdschr. v. 
Ent. 54; 376. 
This species appears to be distinguished 
from other Strumeta which occur in this region 
by having three postsutural yellow vittae, the 
crossveins without infuscation, and the costal 
band enlarged into a large apical spot. 
TYPE locality; Sindanglaja, Java. 
Type in the Zoologisch Museum, Am- 
sterdam, 
We have not seen this species. 
Dacus {Strumeta) arecae n. sp. 
Fig. 5 
This species is very similar to D. dorsalis 
Hendel, differing chiefly in its smaller size 
and consistently paler color. The short, stubby 
ovipositor will readily distinguish the species. 
The anterior median portion of the meso- 
notum is yellow to rufous in arecae and is 
black in dorsalis. The thorax is marked with 
yellow brown to brown but usually has no 
black markings on the specimens of arecae 
which are at hand. The portions of the pleura 
and metanotum which are black in dorsalis 
are yellow brown in arecae. The third section 
of the costa (stigma) is distinctly shorter in 
arecae than in dorsalis. In arecae the second 
costal section measures 21 marks on our ocu- 
lar micrometer, whereas the third section 
measures approximately 25 marks (Fig. 5^). 
In dorsalis the second measures 21 and the 
third about 35 (Fig. ^d). This species is also 
close to D. froggatti (Bezzi) (refer to discus- 
sion under that species). 
MALE. Head: Front rufous to yellow with 
no frontal spots. Two pairs of inferior fronto- 
orbital bristles and one pair of superior fronto- 
orbitals are present. The occiput is chiefly 
yellow, just faintly discolored with a brownish 
tinge on the hind portion. The black facial 
spots are large and are quadrate to oval in 
shape. The third antennal segment is dark 
brown at the apex and on the outside surface 
and is slightly longer than the face. All the 
head bristles are black. Thorax: The front 
margin of the mesonotum is polished yellow. 
A broad yellow to rufous vitta extends from 
inside the outer scapular bristles to just be- 
yond the suture. The vitta is slightly inter- 
rupted medianly by a faint brown line extend- 
ing from the suture to just before the inner 
scapular bristles. The median pale vitta is 
bordered on the sides by a line of brown 
which runs from the dark spots behind the 
humeri to the outer scapular bristles (Fig. 5^). 
A narrow yellow vitta also extends from the 
posterior margin of the mesonotum, between 
the prescutellar bristles, to a point just before 
the suture, indistinctly connecting with the 
Fig. 5. Dacus {Strumeta) arecae n. sp. a. Wing; b, 
mesonotum; c, extended ovipositor; d, apex of piercer. 
