290 SYSTEMATIC ARRANGEMENT 



about 200 different species inhabit this country. 

 As an example of this order we have figured 



PHRYGANEA GRANDIS. 

 PLATE XXX. Fig. 1. 



Linn. De Geer, II. 388, PI. 13, fig. 1. Kirby and Spencers 

 Introd. III. 68, PI. 3, fig. 4. 



THE upper wings are brownish grey, with cinereous 

 spots, a longitudinal black ray and two or three 

 white points at the extremity ; antennae as long as 

 the body. Found plentifully in many parts of the 

 Continent, and not unfrequently in Britain. 



ORDER VI. HYMENOPTERA. 



THE name of this order being derived from u/^v, a 

 membrane, is not distinctive, the wings of several 

 other orders being likewise membranous. They are 

 four in number, and of a uniform texture throughout, 

 the upper pair being always larger than the under 

 pair. They are permeated by a considerable num- 

 ber of nervures, which usually radiate from the base, 

 and form areas of greater or less extent over the 

 surface, but these are never so small and numerous 

 as to resemble the reticulated wings of the Neurop- 

 tera. The mouth essentially consists of mandibles, 

 maxillae, an under and upper lip, and palpi. The 

 females are provided with an ovipositor, sometimes 

 resembling a pair of saws, and at other times assuming 

 that modification of form in which it is named a sting, 

 and the tarsi are in most cases pentamerous. 

 These general properties may suffice to separate 



