132 HORTENSE BUTLER. 



Figs. 7-10. — Agrioiiinse. 



7. Hyponeura luqens Hagen, lateral lobe. 



8. Apex of lahiiim of the same. 



9. Podngrion sp. ? 



10. Lateral lobe of Enallagma doubledayi Selys. 

 Figs. 11-12. — Lestinse. 



11. Lesfes uncntus Kirby. 



12. Archilestes grandis Eambiir. 



Fig. 13. — Embryonic labium of Lestes uncatus Say. 



Plate VI. — Nymphal labia of Anisoptera. 



Fig. 1. — Gomphiiise. 



1. Gomphus vtdgafissimus Linn. 



a. Lateral lobe of Phyllogomphus ethiops Selys. 



b. Lateral lobe of Aphylla sp. V 



c. Ligula of Aphylla edentata Selys. 



d. Ligula of Macrogomphus sp. ? 



e. Ligula of Phyllogomphus ethiops. 

 /. Ligula of Gomphus dilatatiis Selys. 



q. Lateral lobe of Ophiogomphus severus Hagen. 

 h. Ligula of an unknown Gomphidai from Brazil. 

 Fig. 2. — yEschninse. 



2. Basiseschna janata Say. 



a. Lateral lobe of jEschna clepsydra Say. 



6. Lateral lobe of Stanrophlebia magnifica Brauer. 



c. Ligula of Staurophlebia magnifica Brauer. 



d. Ligula of Boyeria vinosa Say. 

 Fig. 3. — Tachopteryx thoreyi Selys. 



Fig. 4. — Cordulegaster maculatus Selys. 

 Fig. 5. — Libellulinse. 



5. Perifhemis domitia Drury. 



a. Ligula of Mesothemis simplicollis Say. 



b. Ligula of Epopthalmia elegans Braner. 



c. Lateral lobe of Epopthalmia elegans Brauer. 



d. Lateral lobe of Phyllomacromia sp. ? 



e. Ligula of Orthetrum cancellatum Linne. 

 /. Ligula of Phyllomacromia sp. 



q. Lateral lobe of Mesothemis simplicollis Say. 

 h. Lateral lobe of Tetragonuria cynosura Say. 



PL.A.TE VII.— Adult labia. 



Fig. 1. — Labium of Cordulegaster mactdatus Selys. 



a. Enlarged end hook of same. 

 Fig. 2.— Tachopteryx thoreyi Selys. 



