ORDER V. IIYMENOPTERA. 
67 
is often exserted, and with which the eggs are deposited either in the 
bodies of the caterpillars of other insects, or in wood. From these eggs 
the lame are produced, which in some have no feet; in others m6re 
than sixteen. They change to pupa incomplete, which arc inclosed in 
cases. Some of the insects of this Order live in societies, others are 
Solitary. 
Genus 60. CvNirs. 
Mouth with a short membranaceous maxilla with one dent: an arched 
horny mandible cleft at the apex: a short, cylindrical, entire, horny 
Up: four short unequal palpi: antenna moniliform, aculeus spiral, and 
in general hidden within the body. 
Tire Cynipes pierce the leaves. Sec. of plants with their sting, and de- 
posit their eggs in the wound; the extravasated juices rise round it and 
form a gall, which becomes bard, and in this the larva lives and feeds, 
u, id changes to a pupa. 
®p. 1 . C. Quercusfolii. (Pl. 8. fig, 1.) 
The larva is found in galls, adhering to the under side of oak leaves, 
°f the size of hazel-nuts. 
Genus 61. Tenthredo. 
Mouth with a horny arched mandible, dentated within: maxilla obtuse at 
the apex : lip cylindrical and trilid : palpi four, unequal, and filiform. 
The larva' of the insects of tills genus have from sixteen to twenty- 
O'ght feet; a round head : when touched they roll themselves together. 
\ hey feed on the leaves of plants. When full-grown, they make, some- 
times in tire earth and sometimes between the leaves of the plant on 
which they feed, a net-work case, and within it change to a pupa in- 
complela, which for the most part remains during the winter in the 
earth. The species are very numerous, and consist of many natural 
genera. . 
®P- 1. T. Scrophularia. (PL S.fig. 2,) 
Inhabits the Water Be tony. 
Genus 62. Sirexi 
Mouth with a thick, horny mandible, truncated at the apex, and denti- 
culated: an incurved, acuminated, cylindrical, ciliated maxilla, and a 
Up, both of them membranaceous and entire; the whole short: palpi 
four, the hind ones the longest, increasing towards their apex: an- 
tenna filiform, with more than twenty-four equal articulations : ovi- 
duct exserted, stiff, and serrated : abdomen sessile, terminating in a 
point or spine : wings Janccolated, and not folded. 
S P- 1- S. Gigas. (PL 8. Jig S.) 
Genus 63. Ichneumon. 
Mouth with a straight membranaceous, bifid maxilla, rounded at the 
a pcx, dilated, ciliated, and horny: an arched, acute, horny mandible , 
E 2 
