50 INSECTS. 



less " thoro' bush, thoro' briar/' as she wends her way 

 in search of food for the day or stores for the future, or 

 as she traverses the narrow passages of the hive, admi- 

 nistering food to the ever-ready pupa, or forming fresh 

 cells wherein to lay up her golden treasures. 



We see then the purpose of the division of the wing ; 

 and now, how is the loss of power compensated ? By 

 the presence of a row of hooks on the front edge of the 

 hind wing, which, fitting into a fold in the hind edge 

 of the fore wing, connect the two in flight and make, as 

 it ivere, one wing of the two. 



Fig. 24. 



(A) portion of hind margin of upper wing of 

 Bee, showing (a) thickened ridge for reception of 

 hooks (6), on upper side of lower wing (} of ditto. 



Here is a beautiful illustration of this variety of 

 structure, with an evident purpose. 



For figures of Order VI., Hymenoptera, see Plates 

 VI. to IX. 



After the insects with clear and membranous wings, 

 come the tribes of butterflies and moths, and here at 

 least are insects with which all are familiar. Even the 

 painted scales or dust upon their wings cannot pass un- 

 observed, and the Lepidoptera (AcTrie, a scale ; irrtpbv, 

 wing) would seem to require no introduction. 



