Longicorn Coleoptera. A87 
of short hairs, as in the majority of the species of the 
genus, and not in the form of minute flattened scales, as 
in the present species and in R. servilis, Pasc. 
Oberea walkeri, sp. n. 
Fulva ; capite, antennis, elytris pygidioque nigris ; tibiis apice, 
tarsisque et (in mare) segmentis intermediis abdominis infuscatis : 
capite distincte sat denseque punctato ; prothorace quam longiori 
evidenter latiori, dense punctato, lateraliter medio obtuse rotun- 
dato ; elytris fortiter denseque et seriatim punctatis, per medium 
fusco-testaceo-dilutis, griseo tenuiter pubescentibus, area minima 
circum scutellum et macula sub humerum testaceis. Long. 
16—19 mm. 
Hab. Hong Kong (J. J. Walker). 
Head, antenne, elytra, and pigidium black ; thorax and under- 
side of body fulvous, with the sides of the three intermediate 
abdominal segments slightly infuscate in the male ; tarsi and distal 
portion of tibize blackish. Head distinctly punctured, with the 
punctures more thickly spread on the vertex than in front. Pro- 
thorax distinctly broader than long, thickly punctured ; slightly 
gibbous in the middle above, a little bulged out on each side, 
reaching its greatest width just behind the middle. Elytra 
strongly punctured, with the punctures arranged in closely 
approximated rows; a slight testaceous tint appears along the 
middle of each elytron, and there is a distinct, but very small 
testaceous space around the scutellum ; a faint greyish pubescence 
covers almost the whole of the dorsal surface ; the apices are each 
slightly emarginate, and feebly dentate at each of the four angles. 
The sides of the breast are strongly but very sparsely punctured. 
The last ventral segment, black, with the exception of a narrow 
anterior border, bears in the male a rather broad longitudinal 
channel which narrows anteriorly ; in the female this segment has 
near the apex a narrow triangular depression, which is continued 
anteriorly as an impressed line. The male is further distinguished 
by its slightly longer antenne, and by having the front of its head 
narrower, and covered with a more distinct greyish pubescence. 
Appears to be most nearly allied to O. japonica, Bates, 
Chreonoma basalis, sp. n. 
Fulvo-testacea, elytris (limbo basali excepto) violaceis aut 
cyaneis ; capite sparsim punctato, medio frontis in mare breviter 
sed prominente carinato: prothorace sat dense punctato, supra con- 
vexo, lateraliter medio rotundato; elytris sat dense punctatis ; 
