PACHYTERIA MELANCHOLICA. 189 
NOTE IX. 
PACHYTERIA MELANCHOLICA, N. SP. o&. 
DESCRIBED BY 
C. RITSEMA Cz. 
Judging from the description and figure this species 
seems to be closely allied to Pachyteria virescens Pasc. ') 
from Pulu Penang or from the coast opposite the island. 
It differs however by the darker coloration, by the smooth 
line along the middle of the pronotum and by the slightly 
emarginate (not rounded) apices of the elytra. 
Length 30 mm. — Above subshining and covered with 
short black hairs which are erect on the pronotum. Head, 
prothorax and scutellum black, the elytra very dark bronze 
green. The 5 basal joints of the antennae dark steel-blue 
(the 3rd, 4th and 5th joint covered with a velvety black 
pubescence), the remainder lemon-yellow. Undersurface 
and legs black with a steel-blue hue; the coxae, the sides 
of the mesosternum and those of the abdominal segments 
along the hindborders with a greyish pile; the anterior and 
intermediate tarsi ashy. 
The clypeus sparingly punctured and with a slightly 
raised mesial-line, the inter-antennary ridge velvety, the 
vertex with irregular wrinkles; a well-defined groove extends 
from the occiput down to the base of the clypeus. The 
3rd antennal joint is nearly as long as the 4th and 5th 
taken together. 
The pronotum covered with very regular transverse 
wrinkles which are interrupted along the middle of the 
1) Proceed. Zool. Soc. London, 1866, p. 519; pl. 43, fig. 2. 
Notes from the Leyden Museum, Vol. XXXI. 
