302 INSECTA. 
The posterior extremity of the body is narrow in several ; they are 
styled by Reaumur “ chenilles en forme depoisson.” Their cocoon 
has the figure of a bateau, and is sometimes of pure silk, and at others 
mixed with foreign matters, 
The Tortrices compose the subgenus, 
Pyrauis, Fab.* 
P. pomana, Fab.; Rees., Insect., I, Class IV, Pap. Noct. 
xiii. Cinereous-grey; superior surface of the upper wings finely 
striped with brown and yellowish, with a large spot of golden- 
red. 
The caterpillar feeds on the seeds of the apple, and the female 
deposits her eggs on their germ. 
P. vitis, Bosc., Mem. de la Soc. d’Agric., I], iv, 6. Superior 
wings deep greenish, with three oblique, blackish bands, the last 
terminal. 
Its caterpillar i is very injurious in vineyards. 
P. prasinaria, Fab.; Rees., Insect., IV, x. The largest spe- 
cies known; superior ’ surface of the upper wings light green, 
with two oblique white lines. 
On the Oak, &c. Its caterpillar is one of those that Reaumur 
compares to a fish. Its cocoon has the form of a batteau }. 
The seventh section of the Nocturna, that of the GreometTra— 
Phalenites, Lat.; P. geomeire, L.—comprises Lepidoptera in which 
the body is usually slender, the proboscis either nearly wanting, or 
generally but slightly elongated, and almost membranous. The in- 
ferior palpi are small, and almost cylindrical. The wings are ample, 
extended, or tectiform, and flattened. The antenne of several 
males are pectinated. ‘The thorax is always smooth. The caterpil- 
lars usually have but ten feet; the others present two more, and 
those at the anus always exist. Their peculiar mode of progression 
has caused them to be styled Arpenteuses, Geometre, or Measurers. 
When about to advance, they first cling with their anterior or squa- 
mous feet, then elevate their body so as to form a ring, in order to 
* Certain divisions established in our Gen. Crust. et Insect., IV, 220, divis. 2 
and 11, K has appeared to us—Fam. Nat. du Reg. Anim., 476—might be formed 
into separate subgenera. 
Those species—Tortrixv dentana Hiibn.— in which the wings have a peculiar ap- 
pearance; the upper ones being somewhat raised at the exterior margin, and inclined 
on the opposite one, and of which the caterpillars haye membranous feet of a pecu- 
liar form, compared by Reaumur to wooden legs, compose the subgenus XYLOPODA. 
Others—Pyralis rutana, uinbellana, heracleazna—in whieh the inferior palpi curve over 
the head like horns, and terminate in a point, form that of the Volucre—VOLUCKa. 
Finally, others again in which the wings are narrow and elongated, and the infe- 
rior palpi longer and salient, species which closely resemble the Crambi of Fabricius, 
near which they must probably be placed, constitute a third subgenus, PROCERATA, 
of which the Syrulis saldonana, Fab., is the type. 
For the other species, see Fabricius and Hiibner. 
+ MM. Lepeletier and Serville, with the Pyralis Godarti, previously described 
by them, have formed the new genus MATRONULA, differing from others of this 
division in the following characters; the labial palpi shorter than the head, with 
rather indistinct and almost glabrous joints; anterior coxe strongly compressed, 
and at least as long as the thighs. 
