84 SOME HEMIPTERA HETEROPTERA FROM N. W. BORNEO. 
more variable than any other Colpura known to me. The pronotal 
apical angles are usually shortly produced in a right-angled pro- 
minence, but sometimes more acutely, dentately projecting, the 
tooth being directed forwards, rarely slightly outwards. The later- 
al ruga of the pronotum is usually coneolorous, but occasionally 
luteous anteriorly. The third antennal joint is either coneolorous 
or pale at the base. The two pale annulations to the tibiae are in 
some specimens less distinct or even entirely wanting. All these 
varieties agree in the structure of the male and female genital seg- 
ments. 
The species has also been recorded from Malacca, Cambodia 
and Java. 
19. Colpura scrutatrix Bredd. 
Kuching, Sarawak. 
Originally described from the small island of Banguey, off the 
northern cape of British Xorth Borneo. 
20. Stenocolpura annulata n. sp. 
Elongate, parallel from humeral angles to apex of fourth ab- 
dominal segment, black, membrane (excluding interior basal area, 
basal border, and basal half of interior border) brownish-ochraceous, 
the somewhat eallose scutellar apex, a. small spot near middle of 
apical margin of corium, orificial tubercles, base of second and 
third antennal joints, fourth antennal joint (except base), rostrum, 
trochanters, base of femora, and two annulations to tibiae yellowish, 
abdomen with a very obscure paler spot at the apical angles of the 
segments, tarsi brown ; above moderately thickly punctured, scutel- 
lum more remotely and more finely so, but along apical half of 
lateral margins with a row of deeper and larger punctures; beneath 
rather densely punctured with cinereous, more coarsely so on the 
pleurae; sparsely clothed with short and narrow yellowish scales. 
Head two-thirds longer than broad, first antennal joint as long as 
head, second two-fifths longer than first, third scarcely shorter than 
first and a little longer than fourth, rostrum reaching base of fifth 
ventral segment. Prothorax three times higher than head, pro- 
notum strongly declivous, broader than long, transversely impressed 
before middle, posterior lobe a little 1 convex with a longitudinal 
impression within the rounded, not prominent humeral angles, 
lateral margins straight, lateral ruga narrow, but in its anterior 
half distinctly visible also from above, apically obtuse-angled, not 
at all dentately prominent, evanescent towards the humeral angles. 
Elytra almost reaching apex of abdomen. Metapleura 1 with straight 
posterior margin. Abdomen beneath deeply grooved down its 
whole length, the groove shallow only in the last segment. Femora 
unarmed, the anterior pair beneath only with very few minute 
granules bearing a short seta. Length, $ 12 mm. 
Male : genital segment with the apical margin evenly rounded, 
neither sinuate nor impressed at apex. 
Jour. Straits Branch 
