86 INVERTEBRATE ANIMALS. 



IT Observe the foliaceous expansions on the legs of 

 Diactor, the protective mimicry in Phloea, and 

 the prismatic reflexions in some of the Scutel- 

 leridce. 



Small series of British species presented by J. W. 

 Douglas. 



Order HOMOPTERA. h^j^os, like ; Txepov, a wing. 

 Wings four, entirely membranous and deflexed. 



Group 199.— Family FULGORID^. Fulgor, brightness; 

 and allies. 



H Examples : Lantern-flies, Fulgorida ; the China 

 Wax-insect, Flata ; Frog-hoppers or Cuckoo- 

 spit-iusects, Cercopidce ; Plant-lice, Aphides ; 

 Scale-insects, Coccidce; Cochineal-insect, Coc- 

 cus cacti; Shell-lac-insect, Coccus lacca. 



Observe the curious modifications of the "Lan- 

 tern"; the waxen plumes in Lystra ; the 

 extravagant development of the prothorax in 

 some of the exotic Cercopidce. 



Small series of British species presented by F. W. 

 Douglas. 



Group 200.— Family CICADID^. jt.xxa/3>j, the Screech-owl, 

 in allusion to its shrill note. Illustrated by about 36 

 species, including representations of Polyneura, Gceana, 

 and Dunduhia imperatoria, the largest species in the 

 group. Observe the instrument by which the male 

 Cicada emits its loud note ; it is a tense membrane 

 on its sides near the base of its wings, and is best seen 

 in C. saccata, from Australia. 



A single species is found in Britain, where it is by 

 no means common. 



