100 INSECTA. 
No. 1S6—and otherwise closely approximated to the Alomyz, 
is remarkable for its pyramidal head with an anterior elevation 
bearing the antenne. It might form the type of another sub- 
genus—Hypsicerda( 1). 
In those, the abdomen is connected with the thorax by the greater 
portion of its transversal diameter, is -almost sessile, nearly cylin- 
drical, and simply widened or thickened towards its posterior ex- 
tremity. Such are the 
Pe.tasres, Illig.—Metopius, Panz. 
Where there is a circular elevation under the antennz, and the 
lateral edges of the scutellum are turned up and sharp(2). 
In the second and last division of those species in which the max- 
illary palpi are composed of five joints and the labials of four, we 
observe a profoundly emarginated or almost bifid ligula, and max- 
illary palpi the joints of which differ but slightly, or change their 
figure very gradually. The ovipositor projects and is covered at 
base by a large lamina formed like a vomer. The posterior thighs 
are thick. The head in several projects in the manner of a snout. 
ACENITUS,, Lat. 
When the head presents no anterior projection in the form of a 
rostrum(3). 
AGATHIS, Lat. 
Where it terminates inferiorly in that manner. These Insects 
approach the following subgenera by their wings(4). 
Our second division of the Ichneumons only differs from the first 
with respect to the number of joints in the palpi, inasmuch as there 
is one less in the labials, which present but three. As in most of 
the species of the following division, the second cubital cell is most 
frequently as large as the first, and nearly square. The ovipositor 
projects. The point of the mandibles is emarginated or bifid. 
(1) The same works. 
(2) Ichnewmon necatorius, Fab.; Panz., Faun. Insect. Germ., XLVI, 21;—ZJch. 
migratorius, Fab.;—Ich. amictorius, Panz., Ibid., LXXXV, 14;—Jch. dissectorius, 
Panz., Ibid., XCVIII, 14. See Encyc. Méthod., article Peltaste. 
(3) Lat., Gen. Crust. et Insect., IV, 9; Encyc. Méthod., Hist. Nat. Insect., 
> ES YG 
(4) Lat., Ibid., 9; Encyc. Méthod., Ibid., 38. 
