BY R, J, TILLYARD. 377 



—Synthemis cyanitincta^ , anal appendages, a dorsal, h profile view. 



- Metathemis hrtmstylaS' ,, ,, ,, 

 . — Mftathemis virgula^' ,, ,, 

 , — Metathemis (juttaia^ ,, ,, 

 , — Metatlifimis nigra (^ ,, ., 

 , — Ohoristhemisflavoterminata^ ,, ,, 

 , — Choritthemis olivei^ „ ,, 

 — Choristhemis flavoterminata^ , profile view of segment 2, underside, 



— Synthpmis regina2, i^st three segments of abdomen, a profile, 

 Ii ventral view. 



Fi^' 17. — Synthemis maerostigmn^ , ^ast three segments of abdomen, profile 



view. 

 Fig AS. —Synthemis leachii^ , last three segments of abdomen, profile view. 

 Fig. 19. — Synthemis eustalacta 2 ,, ,, ,, 



F\g.20. — Synthemis tasma7iica 2 ,, ,. ,, 



Fig.2l. — Synthemis cyanitincta^ , last three segments of abdomen, a profile, 



1) ventral view. 

 Fig 22. — ihorislliemis flavoterminata^ ,\-Asi three segments of abdomen; 



n,h,r, profile views of three different females; d, ventral view of a. 

 Wig.2^.— Metathemis virgula'} ,\?L?,i three segments of abdomen, ventral 



view. 

 Fig.24. — Synthemis eustalacta^ , penis ( x 25). 

 Fig. 25. — Metathemis guttata^ , penis ,, 

 Wig.2Q. — ChoristhemisJlavoterminata^, penis ( x 25). 



Plate viii. (larvae). 



yig.l. — Part of egg-cluster of Synthemis eustalacta Selys ( x 10). 

 Fig.2. — Full-grown nymph of Synthemis eustalacta Selys ( x 4). 

 Fig. 3. — Head of Synthemis eustalacta Selys, seen from in front ( x 9). 

 Fig. 4. — Antennae of Synthemis eustalacta Selys ( x 25). 

 Fig. 5. — Head of Metathemis guttata Selys, from above ( x 9). 



Plate ix. (labia of nymphs). 



Fig. 1. — Labium of Synthemis eustalacta Selys ( x 25). 



Fig.2. — Labium of Synthemis regina Selys ( x25). 



Fig.3. — Labium of Synthemis macrostigma Selys (x25). 



Fig. 4. — Labium of Metathemis guttata Selys ( x 25). 



Fig. 5. — Labium of Choristhemis Jiaroterminata Martin ( x 25). 



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