~ 
new Genera of Ichneumonide. 485 
the middle of the mesonotum, scutellum, postscutellum, a 
large mark, rounded on the outer side, straight on the inner 
side, on the apex of the median segment, a line on the lower 
edge of the propleure, the tubercles, a large elongated mark 
of almost equal width on the lower side of the mesopleure, 
and a small mark under the hind wings, yellow. Mesonotum 
shagreened ; the scutellum sparsely punctured. ‘I'he centre 
of the median segment is smooth at the base; the supra- 
median area is longer than broad, bulges out below the middle, 
inside it is finely irregularly striated ; the posterior median 
area is stoutly transversely striated ; the others are strongly 
punctured, except the inner side of the outer lateral, which 
is transversely finely striated. Propleuree shining, the lower 
apical part striated. Mesopleuree closely but not strongly 
punctured; the apex on the lower side is depressed, the 
depression with some stout keels. Metapleuree more closely 
and strongly punctured; behind the curved keel striated. 
Mesosternum closely punctured, the furrow triangularly 
widened at the apex and crenulated. Legs rufous, the four 
anterior cox and trochanters yellow ; the hinder coxe black, 
as are also the basal joint of the trochanters, the apices of 
the tibia and femora, and the apex ot the second joint and 
the whole of the apical three joints of the hinder tarsi, this 
being also the case with the four front tarsi; the claws are 
rufous. Wings hyaline; the stigma fuscous, the nervures 
paler; the areolet at the top is hardly one half the length 
of its lower side; the recurrent nervure is received in the 
middle. Abdomen black; all the segments marked with 
pale yellow laterally at the apex; the yellow mark on the 
petiole is large, dilated at the apex on the outer side, and these 
maiks are united at the apex by a narrow line; the marks on 
the second segments are large, broad, on the third narrower 
and longer; on the other segments they are continuous ; the 
enieliold is yellow. 
GYRODONTA, gen. nov. 
Mandibles short, broad, their apices bluntly rounded, 
without teeth, the lower side at the base projecting down- 
ward and clearly separated. Head large, broad, largely 
developed behind the eyes, and almost transverse behind. 
Eyes parallel, widely distaut from the base of the mandibles 
above, if anything reaching above to the level of the vertex ; 
the lower edges are sharply keeled. Clypeus not separated 
by a distinct suture from the face, its foveee distinct, its apex 
bluntly rounded. Labrum projecting, distinct. Antenne 
thicker than usual; the apical joints of the flagellum longer 
