442 
Philippine Journal of Science 
1919 
Wings (Plate II, fig. 6) in shape and venation as in the 
preceding species, but with reddish veins. Costal border less 
darkened, more yellowish, and extended in the middle to third 
longitudinal vein; at apex of wing a broad, rounded, dark spot, 
which extends below beyond fourth vein, entering with its 
lower border into second posterior cell; end of first posterior 
cell narrowly subhyaline, the apical spot being thus rather 
separated from wing border; inwardly the apical spot extends 
to a little before upper end of hind cross vein. Anal stripe 
well developed, but not reaching hind border of wing and not 
dilated at end. First basal cell infuscated above second; hind 
cross vein not bordered with fuscous. 
IV. Genus MONACROSTICHUS Bezzi, 1913 
The long, convex, and bituberculate face, the lack of lower 
orbital bristles, the continuous transverse suture of mesonotum, 
the unpaired acrostichal bristle, the spinose front femora, the 
narrow second basal cell, and the restricted base of the discoidal 
cell are the main features of this very distinct genus. To these 
may be added that the first posterior cell is narrowed at end, 
and that the sixth longitudinal vein is not extended to the hind 
border of the wing. The anterior supra-alar bristle is present, 
while the middle scapular bristles are wanting. 
23. Monacrostichus citricola Bezzi. Plate II, fig. 7. 
Monacrostichus citricola Bezzi, Philip. Journ. Sci. § D 8 (1913) 323. 
Distinguished from all the preceding species of the genus 
Mellesis by the peculiarly patterned face with entirely black 
antennal grooves; by the yellow supra-alar stripes on the sides 
of mesonotum, even a short posthumeral stripe being present; 
by the complete black crossbands at base of fourth and fifth 
abdominal segments; by the nonciliated third abdominal seg- 
ment of the male; by the flattened ovipositor of the female; 
and by the very simple wing pattern (Plate II, fig. 7). The 
dark transverse band of the face in the present species is not 
placed just above the mouth border as in M. conopoides or in 
M. pedunculata ; but it is narrow and placed toward the middle, 
just belovr the upper facial tubercle; it is saddle-shaped, and 
from its lower angle branches a short, vertical, dark stripe, 
which runs to the upper mouth border. 
Luzon, Laguna Province, Los Banos {Baker), reared from 
Citrus fruits. I have seen only the typical specimens. 
