The Nymph. 



1>7 



false shots, it does not seem able to gauge ver}' 

 accuratel}^ the n)-mph puts into motion the powerful 

 muscles by which the mask is moved, shoots it out 



--r 



-■ •■ ?■ 



>'-^\ 



Fig. 15. — Typical Masks of the various Sub-families. 



1. LiBELLULIN.t AND CORDULIID.E 



{Cordiilia unea). 



2. GoMPHiN.« (Gomphus vulgatissi- 



inus). (After Cabot.) 



3. CoRDULF.GASTERiN J. (Coydiilegastcr 



bidentatus). (After Cabot.) 



4. /EscHNiN.E (."I Hfl.v impcrator). 



5. Calopterygin-I (Caloplcryx 



splcndcns). 



6. AGRioNiN.t (Eiythiomma 



iiaicis). 



p., Palpus ; /;., Hinge. 



with lightning speed, seizes the animal with the forceps 

 (Fig. 34), and with equal speed brings back the 

 mask with its prey, which is by this means placed 



