Baker: Malayan Jassoidea 



371 



tending into radial cell ; tegmina otherwise shining black through- 

 out; wings smoky. Length of female, 5 millimeters. 



Differs from 0. onukii in structure, as follows : The carinate 

 continuation of lateral frontal suture passing through center of 

 ocellar area and the carina immediately subtending ocellus are 

 very strong and complete, as strong as supraocular and sub- 

 ocellar carinae; the supra-antennal area less strongly depressed 

 next eye and next frontal suture, sloping more gradually to 

 antennal scrobe. Vertex as long as wide between eyes; oblique 

 longitudinal wrinkles of disk very strong and confined to anterior 

 half, entire basal portion shining and minutely sparsely punc- 

 tured. Pronotum (Plate 2, fig. 17, a) a little shorter than 

 vertex, the anterolateral margins into the width four and a 

 half times ; transverse wrinkles subobsolete, the surface sparsely 

 punctate. Median basal area of scutellum subobsoletely rugose, 

 the apical area as in 0. onukii. With but one oblique cross vein 

 m distal portion of subcostal area. 



Sumatra, Baroe, Bandar (/. B. Corporaal) . One specimen of 

 this beautiful species, which represents the farthest southwestern 

 range of this genus as now recognized. 

 Onukia muirii sp. nov. Plate 2, fig. 18. 



Pale ochraceous below; vertex basally and pronotum reddish; 

 vertex with a large irregular median black spot on anterior half ; 

 pronotum with an anterior median stripe and a connected trans- 

 verse median line blackish ; scutellum blackish except for two 

 subapical spots and extreme apex. Tegmina carmine to line 

 of apical cross veins, beyond this testaceous with red veins. 

 Length of female, 5 millimeters. 



Differs from O. corporaali in structure, as follows : A second 

 distinct transverse carina in the ocellar area between the median 

 carina and that subtending the ocellus; also a transverse carina 

 on basal lateral area of front near the subocellar carina and 

 parallel with it. Vertex not as long as width between eyes; 

 surface little depressed, plane, but slightly roughened and with- 

 out oblique longitudinal wrinkles except immediately adjoining 

 lateral carina. Pronotum (Plate 2, fig. 18, a) as long as vertex, 

 the anterolateral margin into width about four times; surface 

 very sparsely punctate, and medially with indications of sub- 

 obsolete transverse wrinkles. Tegmina with venation as in 

 Plate 2, fig. 18, d. External genitalia very large, as long as 

 remainder of abdomen, the subgenital plate broadly shallowly 

 angularly emarginate. 



