APATETICA SIAMENSIS. 249 
profunde punctato-striatis; pygidio apice bisinuato utringue 
angulato, in medio longitudinaliter elevato. — Long. 8 mill. 
Black, shining, antennae brownish, sides of the thorax 
pitchy, elytra greenish black. The head uneven, biangulate 
before the antennae, being straight anteriorly and oblique 
at the sides, with a cluster of punctures close to the eye, 
and a few in the middle of the forehead, eyes rather 
prominent; antennae rather long and slender, three or 
four joints pass the thoracic base when they are pressed 
backwards (that five basal joints are glabrous and the 
terminal joints pilose seems to be a generic character); the 
thorax convex in the median area, dilated at the sides, 
with the marginal rim raised forming anteriorly a lateral 
eanalieulation which widens out and becomes shallow to- 
wards the base, lateral rim even and smooth, hind angles 
well rounded off, punctures on the disc deep and not clo- 
sely set, but spreading out to the sides they are rather 
more dense, and become confluent in the lateral channel, 
the base and a small space behind the middle of the neck 
are smooth and impunctate; the scutellum , surface smooth, 
and outline semicircular; the elytra strongly sulcate, each 
sulcus with a row of evenly set and well-marked punctu- 
res, interstices smooth; the pygidium is longitudinally rai- 
sed in the middle, the apex bisinuous with the lateral 
angles a little protruding; the tibiz are densely pilose on 
the inner edge. — This description is drawn from a {' 
example. 
This species is much larger than 7. princeps Sh., the 
elytra are greenish-black and the antenne relatively lon- 
ger. In 7. princeps also the apex of the pygidium is ob- 
tusely pointed in both sexes. 
Folkestone, 31st March 1893. 
DE 
Notes from the Leyden Museum, Vol. XV. 
