2 HAUSTELLA'I'A. 



, , ^ fdeprcssum: 13. IIemipteka, 



AI r quatuor, I ^^''^"'^ sq"^'^'"^^' = Corjy"s X devatun. : . 14. Ho moptkra- 



■i squama; imbricate : .... 8. Lepidoptera. 



,, , ^ Jdiscretum: ... . . 9. Diptera. 



Ahrduo: CapiU ^ ^^^^-^^^ 10. Hojialoptera. 



„ ^ t compressuni : .... 11. Aphaniptera- 



^^'^"""«^=^«''^'"' fdeprcssum: 12. Aptera. 



These appear to be connected tog-ether in affinity as above dis- 

 posed, and, lik(> the Mandibulata, the series " returns into itself," 

 though the actual point of union between the orders is not always 

 very evident. I noticed, when speaking- of insects in general, that 

 the conterminous orders of the two suliclasses possessed several cha- 

 racters in common, and tliat the Trichoptera were so closely allied 

 to the Lepidoptera, from the imperfection of their oral organs, &c. 

 that authors differed as to which of the subclasses the former abso- 

 lutely belonged : now as the broad expansive wings of these insects 

 are not only furnished with nervures, closely resembling in their 

 branching those of the Lepidoptera, but are moreover clothed with 

 hair or down, and as they have several other general characters, 

 such as the location of the legs — the elongated coxaj — the calcaria, 

 or spurs, I conclude that in a naturally arranged series w^e must 

 pass directly from this group of mandibular insects to the beautiful 



Order VIIL— LEPIDOPTERA. 



AFhose characters are, wings four ', membranaceous, more or less clothed with 

 imbricated scales: mouth furnished with a spiral, filiform tongue: body 

 liairy : prothorax adorned with a pair of tippets : metamoi-pliosis obtectetl. 



The larva? of this order are generally known by the name of 

 caterpillars: they are usually elongate, nearly cylindric, soft, of 

 various colours, naked or clothed with hair, and sometimes armed 

 with spines, or tubercles: the head is covered with a hard scaly, 

 skin, and is furnished with two very short conical antenna?, and two 

 shining eyes : the mouth is provided with two strong mandibles 

 and two maxilke : a lip and four small palpi : the three first seg- 

 ments of the body bear each a pair of horny legs, which are the 

 true legs, and correspond with those of the perfect insect: the 

 false, or prolegs, are membranaceous, they vary in number from 

 four to ten, but, with a few exceptions (as in Cerura, Stauropus, 

 ike.) the last pair is situated on the anal segment of the body. 



* The females oiOrgyia, Cheimutobia, Lampetia, &c. are destitute of wings : 

 in JEgcria, Trochilum, Hesia, Nudaria, &c. the wings are not fuUy clothed with 

 scales. Aglossa, as its name implies, wants the tongue. 



