Tlie Odonata or Dragonflies of South Africa. 415 



row of sharp denticles. Dark chocolate brown with a chequered 

 pattern of whitish spots ; narrow line at median suture ; sinuate, 

 dorsally interrupted ante-humeral stripe; double spot between this 

 stripe and humeral suture ; three rounded spots, an interrupted line 

 and some minute points between on mesipimeron ; sinuate ventral 

 band and triangular dorsal spot on metepisternum ; four spots on mete- 

 pimeron. Ventral surface dull brown, darker at sutures. Legs oliva- 

 ceous, end of second and third femora conspicuously whitish, internal 

 side of tibiae and spines black. Abdomen moderately widened at 

 base, from third segment almost cylindrical ; segments 7-9 very slightly 

 widened in dorso-ventral dimension with a pattern of olivaceous and 

 black, the latter colour predominant, The pattern consists in a rather 

 narrow mid-dorsal and broad lateral black bauds, both confluent in 

 the middle and towards the end of each segment, the lateral bands 

 being a little distant from the lateral carinae ; olivaceous colour 

 broadest on segment 7, Avhere it forms a transverse band over almost 

 the anterior two-thirds of the segment. Appendages olivaceous, 

 superior ones almost straight ; no distinct inferior angle, a row of 

 minute denticles on a blackish ridge instead ; inferior appendage but 

 little shorter. Genitalia of second segment small ; hamule with external 

 branch broadly rounded, internal branch but little shorter, a strongly 

 curved hook ; lobe higher than hamule, rounded, almost circular. 



Wings hyaline ; a sharply defined narrow brown edge at tips ; 

 pterostigma dark brown in costal half, gradually passing to ferruginous 



2 . 2 



in anal half ; membrauule greyish. Anq 9iV . 9|. t , , ; // 4 . 4 ; 



4 rows of discoidal cells in front wing from level of bridge, once 4 cells 

 at triangle on right side ; 2 rows Es-Rspl. 



Abd. 29, hdw. 37, pt. 3'5 mm. 



9 . Very similar to male. Abdomen shorter and more robust. 

 Vulvar scale narrowly elliptical, raised, a little shorter than ninth 

 segment dorsally ; ninth ventral plate projecting in a broad, rounded 

 tongue almost to end of tenth segment. Wings brown at tips almost 



to distal end of pterostigma. Anq 1(H . 10J ; t j j ; ti 4 . 4 (Salisbury) ; 



1 2 



Anq IQi . 1(H ; t j-^ ; ti 4 . 4 (Princetown). 



Abd. 25, hdw. 36, pt. 3'5 mm. 



The type male (from Mozambique) differs from the present specimen 

 by rather large golden-brown spots at base of both wings ; the 

 incomplete female type (from East Africa) is similar to the present 

 females. On the Salisbury female the collectors note : " Habits same 



