5o8 
INSECTS. 
ORDER VIII.—HYMENOPTERA. 
With four naked veined wings, unequal in size ; mouth com¬ 
posed of jaws, mandibles, and two lips; the lip tubular at its 
base, terminated by a labium, which is either double or folded in, 
and forming a sort of sucker; females provided with a com¬ 
pound ovipositor near the vent. 
Section I. — Terebrantia. 
Abdomen of many species sessile, that of the females fur¬ 
nished with an ovipositor or borer; antennae with twelve or 
thirteen joints, less or more. 
TRIBE I.-SECURIFERA. 
Abdomen quite sessile, or intimately united at its base its 
whole breadth, to the metathorax; larvae with six feet, either 
scaly or membranaceous. 
Genus TENTHREDO.— Linnaeus. 
Generic Character. —In both sexes the antennae are simple, 
and nine-jointed in most species, and others with ten or four¬ 
teen ; two radial and four cubital cells, of which the second 
and third receive a recurvent nerve, the fourth being circum¬ 
scribed by the posterior margin of the wing. 
Tentliredo scrophularioe .— The Scrophularia Tenthredo. 
Plate C. fi^. 6. 
Head, thorax, and abdomen black, with transverse bands of 
yellow ; wings reddish-brown and transparent. Inhabits Eng¬ 
land on the water betony. 
TRIBE II.-PUPIVORA. 
Wings of many species with numerous small cells, and others 
divested of longitudinal nerves; first abdominal segment posteri¬ 
orly inclosing the metathorax, and forming part of it; the second 
segment fixed to the first by a peduncle. 
Genus ICHNEUMON. —Latreille. 
Generic Character. —With a petiolate abdomen; superior 
