Fig. I 



EXPLANATION OF PLATE XXI. 

 -Wings of Sisyra indica, Ndm. 



2. — Wings of Annandalia curta, Ndm. 



3. — Maxilla of the same. 



4. — Labium of the same. 



5. — Base of fore leg of Parosmylus prominens, Ndm. (male). 



6. — Maxilla of same. 



7. — Labium of same. 



8. — End of male abdomen, in lateral view. 



9, — Tarsal claw of same. 



10. — Dorsal view of labium and mandible, in situ. 



II. — End of male abdomen in Parosmylus sp.(?) (undescribed) 

 from the valley of the Tenasserim river: a, paired, ft, 

 median unpaired ventral tubercles ; c, sperm conveyor ( ?). 



12. — Ventral view of the latter. 



13. — Abdomen of the male of Panorpa fenestrata, Ndm., in 

 oblique lateral view : v, ventral appendages. 



14, 15. — Lateral and ventral views of same, respectively. 



16. — Abdomen of male of Panorpa sordida, Ndm., lateral view, 



17. — Ventral appendages of same (the tips injured). 



