new Genera of Ichneumonide. 529 
marked with a roundish black spot; the hinder femora have 
a large black mark on the inner and outer sides near the 
apex. The extreme base of the petiole is black; there is a 
large mark, slightly narrowed and narrowly incised on the 
middle, on the base of the second, two large marks roundly 
narrowed on the inner side on the third and fourth, a broad 
line, somewhat interrupted in the middle, on the fifth, a 
narrower, straight, complete line on the sixth, and a mark, 
rounded at the apex, on the seventh, black. The wings are 
clear hyaline and brightly iridescent ; the stigma and nervures 
are deep black ; the recurrent nervure has a sharply oblique 
slope towards the apex of the wing, and is received near the 
apex of the basal third of the areolet. 
The recurrent nervure having an oblique slope is probably 
a characteristic feature with this genus. The radial cellule is 
deeper in the middle compared with its length than in Cryptus 
or Phygadeuon. 
The Genus Labium, Brullé. 
This genus was founded by Brullé in 1846 on a male 
insect from New Guinea (Hymén. iv. p. 316). It was placed 
by Brullé next to Zryphon, and does not appear to have been 
noticed by any subsequent author. I have in my collectiona 
male from Australia which agrees in the main with the 
generic description of the French writer. The genus cannot 
be placed in the Tryphonides; if anywhere, it should be 
placed in a tribe of the Ichneumonine either as a separate 
tribe or as an aberrant member of the Joppini. It has the 
metanotal characters of the latter, and agrees with that tribe 
more particularly in having a depression between the meta- 
notum and the postscutellum, and in the areola being confluent 
with the petiolar area, It differs, however, from the Joppini 
and from the Ichneumonini in the male antenne not being long, 
slender, and more or less serrate, but short, stout, almost clavate, 
and not like the usual male antenne atall. Noteworthy is the 
large projecting labrum; the postpetiole is not so clearly 
separated as it 1s in most Joppini, but this is a point in which 
that tribe shows some variety, ‘The spiracles are certainly 
placed nearer the middle than in Joppa. The recurrent 
nervure is peculiar from its being sharply angled backwards 
in the middle and from being interstitial. In view of so 
little being known of the genus, and as Brullé’s description 
omits many important peculiarities, | have ventured to givea 
detailed description of the genus :— 
¢. Antenne short,not much longer than theabdomen, stout, 
becoming perceptibly thickened towards the apex; the basal 
