290 Mr. Kenneth J. Morton on species of Cordulegaster. 



It may also be pointed out that in the Synopsis des 

 Gomphines (1854) and in the Monographic, the characters 

 of the two groups, as far as the teeth of the superior append- 

 ages are concerned, have been transposed. Correction of 

 this error is made in the Secondes Additions au Synopsis 

 des Gomphines (Bull, de I'Acad. Royale de Belgique (2), 

 xxviii. 1869). 



Explanation of Plates XXXI V-XXX VII. 



PLATE XXXIV 



Fig. 1. C. annulatus. New Forest. 



2. „ ,, immaculifrons, Digne, form A. 



3. „ „ „ I, „ B. 



4. ,, ,, princeps, Tiflis. 



PLATE XXXV 



5. C. annulatus algiricus, Sebdou, Algeria. 



6. „ charpentieri, Caucasus. 



7. ,, „ Constantinople. 



8. „ bidentatus, Mostar. 



PLATE XXXVI 



9. C. insignis, loc. ? 



10. ,, ,, amasinus, Amasia. 

 IL ,, ,, nohilis. Van. 



12. ,, coronalus, Kokand, Fergana. 



PLATE XXXVII 



13. C. coronatus, Kokand, Fergana, from another speci- 



men (photo : W. E. Evans). 



