ORIENTAL PLANT BUGS—HSIAO 7 381 
the length of pronotum. Mesoscutum broadly exposed, scutellum 
transversely rugulose, triangular, length 0.8 mm. (excluding mesoscu- 
tum), width 0.8 mm. 
Hemelytra coarsely punctate; embolar margins slightly convex, 
length 5.6 mm.; cuneus small, impunctate, length 0.5 mm., width 0.35 
mm.; inner apical angle of major areole acute. 
Propleura coarsely punctate, mesopleura and metapleura finely 
punctulate. Legs long, length of posterior femora 3.6 mm., posterior 
tibiae concolorously spinulose, length 5.25 mm. Both genital clasp- 
ers simple, left one larger, fingerlike, gradually tapering at apex, 
strongly curvate; right one with apex flattened. 
Female.—Very similar to male in coloration except second antennal 
segment, which is broadly pale with only apex and base dark. Body 
length 9.5 mm., width 2.75 mm. Head, length 1.75 mm., width 1.35 
mm.; vertex, width 0.6 mm. Length of rostral segments I: 11: III: 
IV =3.2 mm.: 1.85 mm.:2.55 mm.:1.7 mm.; length of antennal seg- 
ments L: If: 111: 1V=1.55 mm.: 2.9 mm.: 5.1 mm.: 2.6 mm. 
Close to R. simplicicollis Poppius but distinguished by longer ros- 
trum, different relative length of antennal segments, and different color 
of scutellum. 
Types —U.S.N.M. No. 56723, holotype, male; allotype, female; 
and 4 male and 3 female paratypes. All from Sandakan, Borneo 
(Baker). 
RHINOCYLAPUS VITTATUS, new species 
Female.—Body, length 6.55 mm., width 2.45 mm., dark brown with 
yellowish stripes, clothed on hemelytra and abdomen with short, 
flavous, simple hairs. 
Head horizontal, width across eyes 1.1 mm., length seen from above 
1.22 mm., height seen from side 0.75 mm., length of anteocular part 
0.7 mm.; yellowish brown, middle of vertex and frons, and clypeus 
broadly dark brown; vertex longitudinally sulcate, width 0.5 mm. An- 
tennae linear, length of segments I: 11: IIL: 1V=0.95 mm.: 2.25 mm.: 
1.95mm.:1.8mm. Rostrum, length 5.5 mm., reaching posterior mar- 
gin of eighth ventral segment. 
Pronotum coarsely punctate, somewhat constricted behind calli, 
length 1.16 mm., width at base 1.7 mm., at apex 0.65 mm., three broad 
_ longitudinal bands and two narrow ones each side along lateral margin 
yellowish; lateral margin sinuate, posterior margin slightly sinuate 
each side of the middle before scutellum, humeral angle rounded; 
apical collar short, convex; calli smooth, anterior margin with a row 
of punctures, convex, confluent anteriorly. Mesoscutum broadly ex- 
posed, scutellum transversely rugulose, slightly convex, length (ex- 
cluding mesoscutum) 0.75 mm., width 0.75 mm., lateral margins and 
apex yellow. 
