94 INSECTA. 
ed, triangular or ovoid abdomen, abruptly pediculated at its origin, 
is inserted into the posterior and superior extremity of the thorax, 
under the scutellum(1). 
PELEcinus, Lat. Fab. 
Where the abdomen, as in the following subgenus, inserted much 
lower, a little above the origin of the posterior legs, is elongated, 
sometimes filiform, very long and arcuated, and sometimes gradu- 
ally narrowed towards its base and terminated like aclub. The 
posterior tibiz are inflated. The antenne are straight and very 
small{2). 
Sometimes the ovipositor projects greatly and is formed of three 
distinct and equal threads. 
In some, the abdomen and posterior tibiz are clavate; the antenne 
are filiform, and the ligula is entire or simply emarginated. Such 
is Foenus proper, or 
Fanus, Fab.—Jchneumon, Lin.(3) 
The abdomen of the others is compressed, ellipsoidal, or falci- 
form, and all their tibiz are slender. ‘The antennz are setaceous. 
Avtacus, Jur. Spin. 
Where the abdomen is ellipsoidal(4). 
PaxyLioma, Bréb. 
Where the abdomen is falciform(5). 
In the second tribe, that of the IcHNEUMONIDEs, the wings 
are also veined, the superior ones always presenting complete 
or closed cells in their disk. ‘The abdomen originates be- 
tween the two posterior legs. The antenne are generally 
(1) See Fab., Jur., Lat., Gen. Crust. et Insect., III, p. 250. 
(2) See the works already quoted, and Encyc. Méthod., article Pelecine. 
(3) See Jurine, Hymenopt.; Lat., Gener., Crust. et Insect., IV, 3; and Panzer 
on the Hymenoptera. See also Spinol., Insect. Ligur. 
(4) Idem. 
(5) See the Nouy. Dict. d’Hist. Nat. 2d edit.; a subgenus formed on a single 
species closely allied to the Ophion, Fab. 
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