TliP Oclonata or DragonfUes of Sovlh Africa. 431 



metepistei-nxim almost entirely oehreous ; latero-ventral and indistinct 

 dorsal spot on nietepinieron. Vei-y slight whitish pruinosity on entire 

 , thorax. Legs black. Abdomen black, with oehreous markings ; latero- 

 ventral spot on segment 2, this segment dull olivaceous or ferruginous 

 dorsally ; narrow ring at transverse carinae of 3 ; 4-7 triangular spots 

 at middle of lateral carina corresponding to transverse oehreous bands 

 on ventral .surface ; such band also on segment 8 and a vestige on 9 ; 

 narrow light yellow line on mid-dorsal carina of segments 4 to 10. 

 Genital lobe broadly trapezoid. Wings hyaline, faintly greyish yellow 

 from triangular region distally. Dark brown spot at base of second 

 pair; vestige in sc, half way to Cuq in cu, 1-2 cells at membranule. 

 Pterostigma brownish black ; membranule black. Female very similar 

 to male. 12-13 Anq. ^ , Ahd. 32, hJw. SO, pt. > 4 mm. 9,35,38,5. 



0. FuelUborni. 



Olpogastra lttgdbris (Karseh, 1895). 



S. Afr. Mus. : 1 J" , Ovampoland. 



Kuowu by a small number of specimens from tropical Africa, East 

 and West, reaching to Nubia. A most elegant and conspicuous 

 insect. 



Olpogastra fuelleborni (Q-riinbei'g, 1902). 



S. Afr. Mus. : 2 S, MTongosi, Zululand (ii, iii . 1911, W. E. Jones) ; 

 White Eiver, Transvaal (Cooke) ; Kaapiiiuiden, Transvaal (xi.l918. 

 Tucker). 



The type male from Nubia, female from Nyasaland and the 

 specimens here recorded are all that is at present known of tliis 

 species. A few specimens fi-om the Belgian Congo belong to a 

 subspecies differing in the larger size, more robust stature and 

 some details in colour and pattern. 



PANTALA (Hagen, 1861). 

 This and the two following genera have in common a particular 

 structure of hind wings with exceptionally broad and also thin and 

 flexible anal field. Corresponding to this structure we find in them 

 a faculty of planing or sailing flight, which faculty is probably 

 responsible for the excessively wide distribution of some members 

 of this group. Pantahi includes two species only, one cosmopolitan, 

 the other one American. 



Pantala klavescens (Fabrieius, 1798). 



S. Afr. Mus. : 1 ? , Gwaai, S, Rhodesia (15 . ii . 1912) ; 1 <^, 1 ? , 

 Salisbury (17 . xii . 1911) ; 1 ^J, Pietersburg, Zoutpansberg District, 



