88 



with yellow liair ; pterostigma pale 

 yellow and short. 



2 (5) Antennae yellow, the third joint darkened 



along the upper border or in the upper 

 part ; dorsum of thorax strongly striped. 



3 (4) Facial tubercle black ; eyes with four or 



three dark bands ; femora mostly black ; 

 thoracic stripes shining and bordered 

 with black ; fourth abdominal segment 

 without yellow band ; upper facets of 

 the eyes only a little larger than the 

 lower ones ; occipital border in the female 

 broadly shining black above 



4 (3) Facial tubercle yellow ; eyes with five 



bands ; femora mostly reddish yellow ; 

 thoracic stripes not margined with black ; 

 fourth segment usually with a yellow 

 band; upper facets distinctly larger; 

 occipital border grey polli nose 



5 (2) Antennae black, or only the third joint 



narrowly yellowish below; dorsum of 

 thorax with less distinct or indistinct 

 stripes. 



6 (7) Eyes with five to six narrow bands, and 



not spotted between ; face with distinct 



lateral stripes tteniops, Wied. 



7 (6) E\es with three broad black bands and 



V>me spots between : face almost entirely 

 black, the lateral stripes therefore not 

 distinct 



8 (1) Scutellum quite black, with a blui.-h tinge, 



entirely clothed with black hair ; face 

 with two very broad metallic shining 

 stripes on the sides ; abdomen without 

 yellow bands ; wings strongly infuscated, 

 with a very elongate black stigma ; 

 squamulse blackish seychellarum, sp. n. 



pluricittntus, Macq. 



barclay i } sp. n. 



fuscicornis, Karsch. 



89. Eristalodes plurivittatus, Mucqitnrt (1855). 



Easily distinguishable by the four thoracic stripes being shining 

 and margined with black, and by the eyes, the upper facets of 

 which in the male are smaller than in the allied species, usually 

 having four dark bands. 



This species seems to be widely distributed over the Ethiopian 

 Kegion, but is more common on the West Coast. The eyes show 

 rather numerous black spots between the bands. There are some 

 specimens in which the bands on the eyes are only three in number, 

 the first (or that nearer the antennae) being wanting or only 

 faintly indicated ; these specimens are usually of smaller size. 

 Some of them, which appear to be immature, have pale reddish 

 femora, reddish peristoma, and also often the lower portion of the 

 facial tubercle yellowish. The yellow band on the second abdo- 

 minal segment is rarely wanting ; the greyish-white bands on the 



