108 INSECTA. 
Acaon, Dalm. 
They are very remarkable for the magnitude and length of their 
head, and for their antenne, of which the first Joint is very large 
and forms a triangular palette; the three last form an abrupt and 
elongated club. ‘They are covered with hairs(1). 
Evurytoma, Illig. 
Where the antenne are as if knotted and furnished with whirls of 
hairs in the males. The ovipositor is short(2). 
Misocampr, Lat.—Diplolepis, Fab. 
Where they are composed, in both sexes, of compact joints and 
are destitute of the whirls of hairs. The ovipositor is long. 
The larva of one species inhabits the gall of the wild Rose tree, 
and devours that of the Cynips, which formed it(3). 
In the others the abdomen is flattened above, and either triangular 
and terminated in a long point in the females, or almost cordiform 
or nearly orbicular. The ovipositor is usually concealed, or but 
slightly salient. 
Here the nervure of the superior wings, situated near the margin, 
is always curved, and unites with the callous point at the exterior 
edge. The two posterior legs are the longest. The inner spine of 
the intermediate tibiz is small. 
PERILAMPUS, Lat. 
Where the mandibles are strongly dentated; the club of the an- 
tenne is short and thick; the abdomen short, cordiform, and not 
prolonged at the extremity, and the scutellum thick and salient(4). 
In the two following subgenera the abdomen of the females is pro- 
longed into aconical point. The club of the antennz is narrow and 
elongated. 
(1) Dalm., Anal. Entom., 30; I, 1—6. 
(2) Lat., Gener. Crust. et Insect., IV, 27. 
(3) Lat., Ibid., 29; genus Cynips. 
(4) Lat., Ibid., 30. 
