84 MARTIN JACOBY 
Length 5 lines. 
Head impunctate, the apices of the jaws black; antennae 
not extending much further than the base of the elytra, the 
second and third joints very short, the two apical joints flavous, 
the 3 preceding fuscous; thorax about 3 times as broad as 
long, very short, the angles obtuse and not acute or projecting, 
surface with a deep transverse sinuate groove, interrupted at 
its middle, the disc with a few fine punctures; elytra with a 
deep longitudinal depression within the shoulders, the latter 
obliquely rounded, the surface very closely and irregularly 
punctured ; underside and legs testaceous. 
Hab. Java, (D. Lansberge). 
The single specimen before me, may be at once separated 
from H. sumatrae Weber, by the punctuation of the elytra 
which is not arranged in striae as in that species, and by the 
colour of the antennae. 
63. H{aplosonyx parvulus, n. sp. 
Fulvous or testaceous; thorax with a few minute punctures; 
elytra dark blue or violaceous, closely and distinctly punctured. 
Var. the intermediate joints of the antennae and the tibiae 
and tarsi, black. 
Length 3 !/, lines. 
Head impunctate ; the frontal tubercles transverse, flattened; 
clypeus strongly raised; palpi strongly incrassate; antennae two 
thirds the length of the body, fulvous, the second and third 
joints extremely short, the fourth very long and the longest; 
thorax narrowly transverse, the angles not produced, the sides 
slightly sinuate below the middle, the disc transversely grooved, 
with a few very fine punctures; scutellum fulvous; elytra 
convex, without any basal depression, dark blue or violaceous, 
the sides with a deep longitudinal depression below the shoul- 
ders, the surface closely and rather strongly punctured with 
traces of longitudinal smooth costae; underside and legs fulvous, 
