148 EEV. A. E. EATON ON RECENT EPHEMEEID^ OE MAYFLIES. 



areas, from the base of the wing to beyond the middle, faintly tinged with light grey ; 

 tlie subcosta and radius black. Hinder legs and seise white. Length of body 2-5 ; 

 wing 3 ; setae 12 millim. 



I£ab. Ceylon (Brit. Mus.). The above is hardly an adequate description of the species, 

 and therefore the name may rank as a mere catalogue name. The unique specimen is 

 gummed upon card, back downwards, and consequently little can be added to Walker's 

 diagnosis. 



C^NIS CIBARIA, Etn. 



Cisnis cibaria, ! Etn., Ent. Mo. Mag. xv. 208 (1879). 



Imago (dried). — Head black, grey above. Thorax light bistre-brown, with the sutures 

 and point of the scutellum black, and the metanotum, as M^ell as the first abdominal 

 segment, grey, with their distal borders black. Abdomen of 6 in segments 7-10, and 

 of 2 throughout blackish grey, Avith the joinings and sides of the dorsum widely whitish, 

 and with segments 2-6 of ? less dark ; these segments are whitish in d , and so also, 

 sometimes, is the track of the dorsal vessel in the dark segments ; venter uniformly pale. 

 Legs whitish ; the outer side of the coxa3, and a large triangular preapical spot or 

 abbreviated streak on the upper part of the femur black. Wings vitreous, with the 

 coarser nervures and the interjacent cross veinlets more or less opaque blackish-grey. 

 Length of body, d 2-5-2-75, 2 4'0; wing, c^ 2-0-2-75, 2 3-0 miUim. 



Sab. In company with C. kuiign, 25th January, 3877 (H. B. Cotteril). 



Cj^nis kungu, Etn. 



Canis ku7igu, ! Etn., Ent. Mo. Mag. xv. 268 (1879) ; cf. Elton, Travels . . . East. & Cent. Africa, 

 p. 292 & Append, p. 415 (1879) [no descript., but note of habits] . 



Imago [dried) — Head and thorax light brown-ochre, or farfuraceous above, and very 

 light yellow-ochre beneath ; abdomen yellower, with the joinings pale. Femora browu- 

 ochreous, the fore tibia of 6 light blackish-grey, the tarsi and hinder iWAse whitish. 

 Wings vitreous, in 6 very faintly tinted towards the costa with light warm sepia- 

 greyish ; the costa and a few of the neighbouring nervures, with the intervening cross 

 veinlets, pitch-black, becoming with change of light warm sepia-brown where they are 

 thinnest. Length of body, d about 3'5, $ 4-5-5'0 ; wing, d 3, $ 3'5-3"75 ; setae, c? 

 subim. 1'75 millim. 



Hah. Lake Nyassa, about the middle of the lake, between Livingstonia and Makan- 

 jeras, 25. i. 1877 (H. B. Cotteril). The packet containing specimens of this and Ccenis 

 cibaria {supra) was endorsed " Edible midges, which the natives of Nyassa make into 

 cakes," sold in their markets by the name of " Kungu." The specimen of Kungu 

 examined by me was composed almost exclusively of a species of the Citiicidce ; and 

 therefore it is probably made of whatever mild-flavoured insect happens to be in suffi- 

 cient profusion at the place and time of its manufacture. 



