270 



Annals nf the South African Museum. 



Wings hyaline or very slightly tinged with yellow. Pterostigma 

 narrow, rectangular, yellowish brown. Superior appendages of male 



bent downward in distal third plagiatus. 



5. Yellow colour of wings gradually deeper towards the tips. Pterostigma 

 yellowish in the central, brown in the marginal parts. Superior appen- 

 dages of males with three distinct medial teeth .... vir gains. 

 Yellow colour of wings suddenly deepened to golden yellow in the 

 pteiostigmatic region. Pterostigma yellowish throughout. Superior 

 appendages of males with an acute sub-basal median tooth and a 

 trapezoid distal dilatation ........ aniicus. 



LESTES ICTERICUS (Gerstacker, 1869). 



This species is not represented in the collections forwarded by 

 Dr. L. Peringuey. It is originally described from an incomplete 



FIG. 8. Lestes iclcricus. . Okosongomingo. Appendages, right side 



and dorsal view. 



male from Mombasa. The writer has examined specimens from the 

 White Nile (Vienna and Stockholm Museums), an old female from 

 Dakar in the Selysian collection (Brussels Museum), a good series 

 from the Kalahari desert (Berlin Museum, alcoholic specimens, 

 described in my paper on Scliultze's voyage), and he can now add 

 2 cT,l ?, from South-West Africa, "Farm Okosongomingo am 

 Kleinen Waterberg " (H. Thomsen, i-ii . 1913, Hamburg Museum). 



d (Okosongomingo.) Labium and occiput whitish. 



Dorsum of head reddish ochreous ; free margin of labrum, ant 

 clypeus and genae lighter, more whitish. 



Thoracic dorsum reddish ochreous, a mere trace of a lighter 

 yellowish line at the humeral suture ; the same ochreous colour on 

 mesepimeron ; metepisternum and metepimerou very light yellow, 

 turning to whitish on the ventral surface. A very small brownish 



