12 graslmeitu 



13 pallidus 



18bre 



19 descrlptus 



20sp,catus ^ ' 21bo,eal,s 



Fig. 21 Gomphus species, accessory genitalia and anal appendages of 

 males and occipita of females, i. G. notaUis, accessory genitalia. 2. bame 

 of G. amnicola. 3. Anal appendages of G. sptcatus from above. 6. bame 

 from the side. 4. G. lividus, accessory genitalia. 5- G. fraternns. ?■ 0-. 

 graslinellus. 8. G. villosipes. 9. G. ventricosus, lateral view of anal appen- 

 dages. 10. G. borealis, accessory appendages. 11. G. descriptus. 12. Cr. 

 graslinellus, lateral view of anal appendages. 13. G. pallidus, accessory 

 appendages. 14. G. spicatus. 15. G. abbreviatus, lateral view of anal appen- 

 dages 16. G. vastus, accessory appendages. 17. G. crassus. liS. G. breins, 

 lateral view of anal appendages. 19, 20, 21. Occipita of descriptus, sptcatus, 

 and borealis, females. 



