LEPIDOPTERA. 4t7 



on which it feeds. The cocoons of their chrysalides are sometimes found 

 collected in piles. 



Tinea. 



Where the proboscis is very short and formed of two little membranous 

 and separated threads. The head is crested. 



p. tapezana. Fab. Upper wings black; their posterior extremity, as well 

 as the head, white. 



The caterpillar attacks cloth and other woollen stuffs, on which it lies 

 concealed in a semi-tubular sheath fonned of their particles, which it 

 lengthens as it advances. 



T. pellionella, Fab. Upper wings silver grey, with one or two black dots 

 on each. The caterpillar inhabits a felted tube on furs; it cuts the hairs at 

 base and rapidly destroys them. The 



T. Jlavifrontella, I'ab., ravages cabinets of natural history in the same way. 



T. granella. Fab. Its upper wings are marbled with grey, brown and 

 black, and turned up posteriorly. The caterpillar — fausse-teigne des bles — 

 connects several grains of wheat with silk, and forms a tube from which it 

 occasionally issues to feed upon those seeds. It is very noxious. 



10. The FissiPBNWffi are closely related to the preceding Insects, so far 

 as relates to the narrow and elongated form of the body and upper wings, 

 but are removed from them, as well as from all others of this order, by the 

 four wings, or at least two, being spUt longitudinally in the manner of 

 branches or fingers with fringed edges, and resembling feathers. The 

 wings resemble those of Bii'ds. They constitute the subgenus 



Ptebophohtts. 

 The caterpillars have sixteen feet, and live on leaves or flowers without 

 constructing a tube. 



ORDER XI. 

 RHIPIPTERA. 



This order was established by M. Kirby under the name of Sire- 

 siptera (twisted wings), on certain Insects remarkable for their 

 anomalous form and irregular habits. 



From the two sides of the anterior extremity of the trunk, near 

 the neck and the exterior base of the two first legs, are inserted two 

 small, crustaceous, movable bodies, in the form of little elytra, di- 

 rected backwards, that are narrow, elongated, clavate, curved at 



