3o8 CONNECTICUT GEOL. AND NAT. HIST. SURVEY 



PLATE III 



Nymphs and exuviae of Anisoptera 



1. Aeshna umbrosa 



2. Nasiaeschna pentacantha 



3. Basiaeschna Janata 



4. Boyeria vinosa 



5. Anax Junius 



6. Dromogomphus spinosus 



7. Gomphus exilis 



8. Hageniiis hrevistylns 



9. Lanthus albistylus 



Nos. 5 and 8 natural size ; 3,4 and 9 twice enlarged ; others 

 slightly enlarged. 



