366 Annals of tlie South African Mnsewn. 



altogether absent in the female of tr'uuiyiilifera. Therefoi'e I preferred 

 to omit this character from the definition and base it on neural 

 characters. 



ANACIAESCHNA TEIANGULIFERA (MacLachlan, 1895). 



Coll. Ris : 1 $ , Camp Har dim, River Hawark, Harrar, Abyssinia 

 (x-xii . 1910, Kristensen). 



9 (slightly immature). Labium and labrum dull ferruginous. 

 Face and frons anteriorly olivaceous, laterally light yellow. Frons 

 above light yellow with dark brown markings ; broad triangular basal 

 spot, reaching laterally to slightly beyond the base of antennae, 

 broadly fused to a line on anterior ridge, this ridge slightly produced 

 in an obtuse angle. .Vertex blackish, with two round yellow spots 

 above. Thorax dark brownish grey, no ante-humeral lines. Sides 

 with two equal, straight, parallel, rather narrow 1 mm.) light yellow 

 bands ; anterior one obliquely crossing mesepimeron, distant at 

 ventral end by about its own breadth from humeral suture, ending 

 dorsally half way between humeral and second lateral suture ; posterior 

 one crossing obliquely metepimeron, distant at ventral end by less, at 

 dorsal end by more than its own breadth from second lateral suture ; 

 a small mesinfraepisterual yellow spot. Legs black, extreme base of 

 first femora yellow internally. 



Abdominal segments 1-2 much inflated, spherical ; base of segment 

 3 much contracted, the rest relatively long and slender. Dark 

 ferruginous, shading to grey, with blackish and light yellow markings. 

 Blackish : terminal joints of segments rather broadly, transverse 

 cariuae narrowly and a diffuse lining of the single yellow spots. 

 Light yellow : a transverse posterior line on segment 1, narrowing 

 dorsally; Complete, narrow (< 1 mm.) longitudinal lateral band on 

 segment 2, very narrow transverse line in front of carina of 2, dilated 

 in mid-dorsal line; 37 small round spot behind ventral end of 

 transverse carina and narrow transversely triangular spot at dorsal 

 end of same ; 8 small latero-anterior spots ; 9-10 sides broadly 

 ochreous. Ventral side dull brown, base of 3 greyish yellow, 4-7 

 small basal yellowish spots. Valvae with a small, very acute spine at 

 ventral angle. Terminal third of tenth ventral plate densely covered 

 with minute black spines. 



Appendages narrow, foliaceous, obtuse. 



Wings hyaline, very light yellow at base in sub-costal and cubito- 

 anal space. Costa light yellow. Pterostigma ochreous. Membrauule 

 white in proximal, dark grey in distal half. Venation, Plate VIII, fig. 9. 

 ? , Aid. 48 + 4-5, hdw. 43, pt. 3-5 mm. 



