438 



Annals of the South African Museum. 



1. Lestes tridens (MacLachl., 1895), /. c., p. 308, no. 6. The descrip- 

 tion, made from one male from Delagoa Bay, does not apply to any 

 species known to the writer. 



2. Lestes obscurus (Kirby, 1898, 1905), /. c., p. 308, no. 7. Mr. 

 Herbert Campion writes to me (9 . xii . 1913) that the specimens so 

 described by Kirby are identical with L. plagiatus. 



3. Metacnemis angusta (Selys, 1863, 1886), /. c., p. 310, no. 15.- 

 Described from a single female, " Cap de Bonne Espe'rauce, de 

 Tancienne collection Latreille." 



4. Argia coiicinna (Ramb., 1842), I.e., p. 310, no. 17. This species 

 is known from the original pair alone, said to be from " Cap " (de 

 Bonne Esperance). I have seen the pair; it is similar in facies to its 

 American congeners of the type^ssa, ociilata, etc. But the configura- 

 tion of the apical border of the tenth segment of <$ is peculiar, as 



FIG. 77. Argia concinna. ? Cape. Appendages, right side and dorsal 



view. 



described and remarked upon by Si'lys (1865) and shown by Hagen's 

 figures (published by Calvert, 1902). None of the numerous species 

 of Argia known to the writer is similar to concinna in this structure. 

 The possibility, though perhaps not the probability, remains open that 

 this species, though belonging to an otherwise strictly American genus, 

 is really African. 



5. Enallagma obliteratum, (Selys, 1876), L c., p. 314, no. 21. This is 

 almost certainly a colour variety of E. glaucum (see p. 326, ante). 



6. Pseudagrion Kersteni (GerstJtcker, 1869), /. c., p. 315, no. 26. 

 The specimens (1 $ , 1 incomplete <$ ) from South Africa under this 

 name (I. c., p. 316) are very probably P. natalense of the present paper 

 (ante, p. 307). 



7. Pseudagrion Deckeui (Gerstiicker, 1869), I.e., p. 316, no. 27. 

 Karsch has decided (1893) for the identity of Selys 1 P. praetextatum 



