20, 5 Cushman: Oriental and Australian Ichneumonide 559 
practically quadrangular; slightly oblique; legs long, slender, 
hind metatarsus nearly as long as remaining joints combined. 
Abdomen in female barely longer than head and thorax com- 
bined, narrow, obtuse, with seven tergites visible; in male dis- 
tinctly longer and with eighth tergite visible; first tergite slightly 
shorter than second, slightly broader than thick at base and 
flattened dorsally, gradually broadening from base to spiracles, 
nearly half as broad at apex as long, in lateral view straight, 
the dorsal line a gentle curve from base to apex, with a strong 
carina from dorsal margin of spiracle to base and another from 
ventral margin of spiracle to apex, spiracles small oval, at 
apical fifth; second tergite with gastroceeli large, shallow, trans- 
verse, distant from base by about their length and from each 
other by less than their length; lunule on second and third 
tergites small, round; third tergite with large, shallow, trans- 
verse gastroceli at extreme base partially covered by second 
tergite; hypopygidium retracted; ovipositor exserted. 
Type, Idiognathus balteatus sp. nov. 
Idiognathus balteatus sp. nov. 
Female.—Length, 10 millime- “S, @= 
ters; antenne, 9. Face finely, ay 
Sparsely punctate, more densely Mies. 
sO in middle, frons below and 
a Z 
laterad of ocelli finely, irregular- 
ly arcuately striate; head other- 
wise polished; pronotum pol- 
ished, slightly roughened on ven- 
tral angles; mesoscutum opaque, . 
d e 'f 
finely and sparsely punctate; 
scutellum polished ; mesopleurum : a all aig 
punctate below, polished above, fer ee kcad, lateral view, 
the sternum punctate; metapleu- « rage wertenegoon ite gta to 
rum punctate; propodeum sub-. ¢ Lee inh cacme: ued a? 
opaque coriaceous, polished me- _g, second tergite, dorsal view. 
dially behind; abdomen opaque; : 
Second tergite longitudinally striate in its basal two-thirds, 
second obscurely so in basal middle; apical tergites subpolished. 
Head black; mandibles, clypeus, and large spot on lower, 
inner orbits and at top of eyes yellowish white; palpi white; 
antenne testaceous at extreme base, black at apex, with ep nbagon 
trally incomplete white annulus occupying nine to ten joints 
beyond the sixth flagellar joint; thorax black to piceous dor- 
