50 STEPHIDJE. 



portion shorter and broader; legs with the four front femora 

 entirely yellow and the hind ones with the basal half yellow ; wings 

 narrower and longer, without the apical infuscation, and with 

 more slender veins. 



Another male from Zungeru, N. Nigeria, xi. 1910 (Dr. J. W. 8. 

 Macfi.e), is very similar, but has the wings infuscated with a 

 yellowish-brown tinge. 



44. Baccha ? brevis, Karsch (1887). 



Near claripennis, having hyaline wings and a short abdominal 

 stalk constricted in the middle, but apparently distinct, on account 

 of its darker antenna? and legs. 



I refer with doubt to this species a female specimen from 

 Chirinda Forest, Melsetter District, S. Rhodesia, x. 1905 (G. A. K. 

 Marshall), which is 8 mm. long and has dark luteous antennae, 

 with the third joint blackened above, and almost black legs, with 

 only the knees and the basal joints of the tarsi yellow. In other 

 respects it answers to the description of claripennis ; the true 

 Irevis seems to be smaller, only 6 mm. in length, and was found 

 at Loanda, Angola. The pterostigma is pale yellowish, not brown 

 at the base. 



Genus 9. EHINGIA, ScopoU (1763). 



For a long time the only known Ethiopian species of this genus 

 was that described by Loew in 1857 ; Austen added a second species 

 in 1893, and I myself a third in 1908 ; more recently four other 

 species have been described by Dr. Speiser and by myself . It seems 

 that the Ethiopian fauna is very rich in species of this genus, 

 chiefly of the characteristic group of metallic-blue forms. Those 

 in the collection can be distinguished as folloAvs : 



1 (2) Thorax and scutellum entirely yellow ; 



frons of the female wholly yellow ; snout 

 wholly yellow, without black band; abdo- 

 men yellow, with very narrow black hind 

 borders to the segments lutea, sp. n. 



2 (1) Thorax either entirely metallic blue, or 



entirely black, or with only the sides and 

 pleuraB yellow. 



3 (6 N > Abdomen yellow with black or blue bands. 



4 (5) Sides of thorax and pleurae metallic aeneous, 



with only some small yellowish markings; 

 scutellum dark metallic; abdominal bands 

 black, that on the second segment not 

 dilated towards the sides semiccendea, A ust. 



5 (4) Sides of thorax and pleurae yellow; sc-u- 



tellum yellow ; abdominal bands blue, 

 that on the second segment greatly dilated 

 on the sides, occupying the whole of the 

 lateral borders pcllucens, sp. n. 



