380 SYSTEM OF INSECTS. 
mostly herbivorous? :_so that they are not precisely simi- 
lar in their habits. Whether they resemble each other 
altogether, in their form, does not clearly appear. ‘The 
above reasons will, I trust, justify me for considering 
them at present as belonging to different Orders ; but if 
further discoveries should confirm the opinion Mr. Mac- 
Leay espouses, I shall have no hesitation in yielding 
£0 It. 
Der. Metamorphosis incomplete?. 
Mouth emandibulate. 
Prothorax replaced by a collar. 
Wings four, upper pair mostly hairy, -lower 
ample, folded: newration branching. 
Anus without sete. Jggs extruded in a gela- 
tinous mass°. 
9. LepipoprerA’ (Glossata F.). Concerning this 
Order, no difference of opinion exists amongst Ento- 
mologists. Besides the scales that cover their wings, 
they are distinguished by the peculiar instrument of suc- 
tion formerly described: neither of these characters, how- 
ever, is perfectly universal; some of the Order (Nudaria 
Haw.) having no scales upon their wings, and others 
being without any antlia (Aglossa Latr.). Other peculiar 
characters are to be found in them; for instance, the 
* De Geer 11. 511—. He however observes, that they often at- 
tack other insects: but the form of their mandibule, like that of the 
eaterpillars of Lepidoptera, which also on some occasions become 
carnivorous (VoL. I. p. 386), is fitted for a vegetable diet. De Geer 
Tbid. 505. > This is evident from De Geer’s ac- 
count. Jédid. 516. ¢. xi. f. 14. t. xv. fi 4. 
coOPrarE xox, Bie. 25: 4 From aezis, a scale. 
