SOME HEMIPTERA HETEROPTERA FROM N. W. BORNEO. 79 
This is the third species of the genus ; all occur iu Borneo. 
In his description of this genus Montandon says that the 
Bead is “ presque aussi longue que large,” but this is incorrect. 
I have a cotype of S. atroaeneus Mont., and the length of the head is 
I. 5 mm., whereas its width is 2.6 mm. 
10. Brachyplatys submarginatus n. sp. 
Boundedly ovate, hlac-k, shining (except pectus), above sub- 
asnescent, a sublateral line (above and beneath) to pronotum and 
corium, a continuous submarginal line to scutellum, a very small 
spot near basal angles of scutellum. a patch enclosing the bucculae, 
apex of orifieial fold, the visible lateral part of the first ventral 
segment, margin of venter and a series of oblong longitudinal 
•slightly elevated spots (two in each segment) a little inside the 
ventral margin pale flavous or reddish, antennae (last two joints 
wanting) and rostrum piceous, legs pitchy black; above very finely 
:and moderately thickly punctured, head and middle of pronotum 
almost impunetate. Head with the margin narrowly and bluntly 
■elevated, rostrum not quite reaching middle of venter. Abdomen 
beneath scarcely punctate, last female ventral segment in the middle 
subacutely produced forward. Length, 2 6 — 6.5 mm., width 5.6 — 
5.8 mm. 
Kuching, Sarawak. 
To be placed near B. nigripes Stal. 
II. Tiarocoris decoratus n. sp. 
Shortly and broadly ovate, shining (except sterna), im- 
punctate, black, except the following yellow parts and markings: 
head, excluding base as far as a line connecting the posterior 
angles of the eyes, pronotal apical and lateral borders, the latter 
much widened anteriorly but intersected by an oblique longitudinal 
blackish line, a transverse band not reaching lateral borders some- 
what before middle of pronotum. a short obliquely longitudinal band 
a little within humeral angles, the small narrow callus at the basal 
angles of the scutellum, its large transverse posteriorly rounded 
basal callus (interrupted by black in the middle), two large ob- 
liquely transverse discal spots to scutellum immediately behind its 
middle, scutellar lateral and apical borders, the latter widened but 
anteriorly angularly sinuate in the middle, prosternum, lateral 
margin of corium and of abdomen, an irregular ventral vitta a 
little inside the lateral margin, very narrowly interrupted at the 
segmental sutures and composed of two subconfluent spots (the 
anterior one much larger) in each segment; extreme apical margin 
of head fuscous; antennas (except the last two fuscous joints), 
rostrum, and legs pale yellowish testaceous. Head almost one-half 
broader than long, anteocular part ( 2 ) very slightly longer than 
the longitudinal diameter of the transverse eyes, interocular space 
24 times broader than an eye, rostrum passing posterior eoxas. 
Pronotum at apex distinctly broader than head, the antemedian 
R. A. Soc., No. 83, 1921. 
