650 EXTERNAL ANATOMY OF INSECTS. 



ders, my observations will be confined. Although in the 

 Coleoptera the wings are seldom distinguished by their 

 splendour; yet those of some Cetoniadce, as Cetonia 

 qfricana, are extremely brilliant, and resemble those of 

 many Xylocopce in the lovely violet hue that adorns them: 

 amongst the Orthoptera some Pterophyllce, and in the 

 Homopterous Hemiptera some Fulgorce, emulate the Le- 

 pidoptera in the ocelli that give a kind of life to these 

 organs a ; and a vast number of the destructive tribe of 

 locusts [Locusta Leach) are remarkable for the fine 

 colours and gaiety of their wings 5 ; in the Netiroptera nu- 

 merous Libellulinae emulate the Heliconian butterflies by 

 their maculation; and in the genus Ascalaphus, which 

 represents the Lepidoptera by its clubbed antennae , many 

 also have the resemblance increased by the painting of 

 their wings, so that some Entomologists have actually 

 considered some of them as belonging to that Order d ; 

 the wings of the Xylocopce, before alluded to, sometimes 

 add to the deep tints of the violet — which also prevail in 

 the wings of several Dipt era — towards their extremity 

 the most brilliant metallic green or copper varying, 



" As the site varies in the gazer's hand," 

 and even those wings that consist of clear colourless 

 membrane are often rendered extremely beautiful from the 

 reflection of the prismatic colours. I should undertake an 

 endless task did I attempt to specify all the modes of mark- 

 ing, clouding, and spotting, that variegate a wing, and all 

 the shades of colour that paint it, amongst the Lepidopte- 



a Stoll Sauterelles a Sabre. Pterophytta ocellata t. i. ii., Cigales, Ful- 

 gora laternaria t. i.f. i., and F. serrata t. xxix./, 170. 



b Ibid. Sauter. de Passage, Locusta Dux U i. 5. L. carinata t. v. b. 

 /. 16. L. cristata t, ix. b. /. 30. &c. &c. e Plate XXV. Fig. 30. 



'' Scopoli, Hubner. 



