i7j 



THE ANNALS 



AND 



MAGAZIiNE OF NATURAL HISTOEY. 



[EIGHTH SERIES.] 

 No. 82. OCTOBER 1014. 



XXXIT. — Three now Species of Ge.y[i\(^\'\on from West Africa 

 {Order Odonata). By HeubEKT (JAMPION. 



As it stands at present, the genus Ceriagrion contains seven 

 species, all but one of wiiicli have an exclusively Oriental 

 distribution. Two of this number have been described 

 during the present year, namely C.fallax^ Ris, from South 

 (5hina (Entorn. Mitteilungen, iii. ]). 47, 1914), and C. oUva- 

 ceion, Laidlaw, from Upper Burma (Kec. Ind. Mus. viii. 

 p. 345, 1914). Isohited females are still difficult to deter- 

 mine, but the identitication of the males of the five older 

 species has been greatly facilitated by the publication of a 

 very useful table by Dr. F. liis (Abh. Senckenberg. Gesell. 

 xxxiv. p. 519, 1913). 



The only extra-Asiatic species made known so far is the 

 African C. gJahnim, Burm. This species occurs throughout 

 the African continent, excepting the Mediterranean region, 

 as well as in Madagascar, Mauritius, and the Seychelles. In 

 general appearance there is a striking similarity between 

 C. glabrum and C. erubesceiis, Selys, known from Siam, 

 South China, Formosa, Malacca, Sumatra, Java, New 

 Guinea, Am, and North Australia. Indeed, Queenslaml 

 specimens have been sometimes referred to under the name 

 oi glabrum ', but examination in detail has shown that tiie 

 two forms are really distinct from each other. 



Ann. iSc Mag. N. Hist. Ser. 8. Vol. xiv. 19 



