On the Scale Insect of Mulberry Trees. 
(Diaspis patf.lliformis n. sp.) 
BY 
C. Sasaki, Rigakuhakushi, 
Professor of Entomology , Agricultural College, Imperial University, 
Tokyo , Japan . 
With Plates I.—II. 
I). Description of the Mature Insects- 
Male.—The body is orange red ; legs, antennæ, veins of 
wings, balancers and anal filament yellow ; head comparatively 
small, slightly pointed in front, where are two long and slender 
antennæ (Fig. i ; Fig. i, a; PI. I). The antennæ (Fig. i, d) are 
composed of ten segments, of which the first is short, large, and 
stout ; the second shorter and smaller than the first ; the re¬ 
maining eight segments are cylindrical and nearly equal in 
size and form, while the terminal tenth segment has a pointed 
end. Its length is 0,7 mm. 
Eyes (ocelli) are globular, prominent, and four in number, 
two on the dorsal and two on the ventral side of the head (Fig. 
i, b and c; PI. I.). The dorsal pair of eyes, which lie near the 
lateral sides of the head, are reddish ochre brown and are 
surrounded by a dark brownish ring at the base. The ventral 
pair, which are similar in size, form, and color, to the dorsal 
pair, lie a little removed from the lateral margin of the head. 
The thorax is ovate oblong, its anterior edge is nearly 
straight. The three segments— pro-, meso-, and meta-thorax— 
are more or less marked off from one another. The pro-thorax 
which is small, nearly quadrangular in form on its dorsal side, 
is much longer and broader on its ventral side, and its tergal 
face is marked with two dark orange inclined lines. 
The meso-thorax which is the largest of the thoracal seg¬ 
ments is somewhat angular in front, and rounded at the posterior 
end. The tergal side of the same segment is vaulted, and its 
scutum is marked with a dark broad reddish orange transverse 
