PLATE LVI. 



CERATOPHYLLUS GALLINUL£, ETC. 



pki l.il 



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1 



Fig. 1. The Grmise-lly Oniithonvjia lagopodis. 

 Ma^'iiiliLcl about nine times. 



Fig. 2. Lmva of Scatu- 

 pluttja slcnnraria L. From a 

 Grouse-di'opiiinf;. Magiiilied. 



11. s. anteiior spiiacle. 



/;.«. posterior spiracle. 



Ii.s. liypostonial selerite. 



ph.s. pharyngeal selerite. 



i'.^ viscnil trachea. 



t.c. transverse commissure. 



Opposite ji. 301.] 



Fic. 3. Siilc view of Ccralupliijllus rjalliiiii/a: Dale. Higlily magnified. 

 A, Male ; B, Female drawn to the same scale and showinj,' the relative 

 difrercnce and size. 



