326 The Philippine Journal of Science 1922 
The genus is founded on a single species, Paribalia borneana 
sp. nov. from Borneo, which is here described. 
Paribalia borneana sp. nov. Plate 1, fig. 2. 
Female.—Black with abdomen, first and second legs, and tibia 
and tarsus of third red, rest of hind leg infuscated. Head from 
above transverse, broader than thorax, occiput concave, from 
in front widest at level of antennez, finely punctate, covered with 
appressed white pubescence. Interocular space 0.56 eye. Eyes 
bare, oval, width 0.86 length. From each antenna a smooth 
shallow groove leads back on frons between lateral ocellus and 
eye, bounding a raised triangular area which bears the ocelli. 
Antenne 13-segmented, all cylindrical and closely joined, lengths 
as 20 (width 8) :9:14 (width 7) :19:17:16:15:14:12 
:11:11:10:21 (width 10). Prothorax with setigerous punc- 
tures on sides, its truncation as broad as pronotum, more finely 
punctate and faintly margined on sides; hind margin raised into 
a broad, blunt, median tooth, which is prominent in profile. 
Mesoscutum broader than long, triangular in front, coarsely 
sculptured with about eight or nine sharp, transverse, inter- 
_ rupted ridges giving it the appearance of a wood rasp with a 
white hair arising behind each tooth. Parapsidal grooves com- 
plete, broader behind; median groove narrower and reaching 
forward halfway. Scutellum rounded behind, with large um- 
bilicate punctures, base with two large, deep, smooth, quadran- 
gular pits separated by a thin carina, sides deeply hollowed out 
and the impressed areas filled with close white pubescence. 
Mesopleura with a longitudinal groove in the central bare 
polished area, above and below which are pubescent areas. Me- 
tanotum with two medial pits. Sides of propodeum areolate and 
pubescent, its neck rugose and arising as far from hind cox 
as from metanotum. Hind legs much the stoutest. Hind tarsus 
longer than tibia, metatarsus about equal to three following, 
shorter than fifth (without its claw), its appendage on outer 
side not quite reaching end of second. Claws simple. Fore- 
wing not quite reaching tip of abdomen, distal half slightly 
smoky, pubescent and ciliate, veins brown, those inclosing radial 
cell very heavy. First abscissa of radius slightly curved, second 
straight and forming an angle of 24° with the slightly longer 
marginal, radial cell 2.9 times as long as broad. Cubitus faint, 
no costal hinge or areolet. Only subcosta of hind wing visible. 
Petiole with about twenty ridges. Abdomen longer than head 
and thorax, twice as long as high, width three-fourths height 
(Plate 1, fig. 2,@). Lengths of tergites measured along dorsal 
