SYRPIHUS. 31 
22. Syrphus eutezniatus, sp. n. 
QO. Length 12 mm. 
Very distinct from any other of the capensis-group on account 
of its sinuous third vein and its very short hairy abdomen, which 
bears three equal yellow bands reaching the sides. 
This species shows unmistakable affinity to true Lasiopthicus, 
but belongs without any doubt to the capensis-adligatus-group, 
which is so characteristic of the Ethiopian fauna. 
Head yellow, covered with dark grey tomentum on the occiput 
and on the frons, the vertical portion of which, however, is broadly 
shining black; frons not swollen, clothed with short but dense 
black hairs; face with a small black tubercle and short dark hairs ; 
peristoma broad, wholly yellowish grey, without the black stripe of 
capensis ; hair on the postocular border long and dense yellowish 
above, ahiese and thicker below; antennz entirely black, the third 
joint less elongate and rounded at the tip; eyes clothed with 
short pale hair. Thorax shining black on the dise, with some 
bluish reflexions, clothed with long erect pale yellowish hairs; on 
the sides of the dorsum there is a little grey dust ; pleurz dullish. 
with pale hairs which form a tuft before the root of the wings. 
Seutellum pale yellowish, mainly black-haired ; squamule whitish, 
halteres and plumule white. Abdomen oval, shining bluish black, 
with short black hair, except at base, where the hair is long and 
pale ; first segment black ; second with a yellow band near the 
fore border, interrupted towards the middle ; ‘third and fourth with 
an equal complete band on fore border ; fifth wholly black, with 
only a small yellow spot on the sides at the fore border. These 
yellow bands are clothed with short pale hairs; the portion of the 
segment just after the band is blacker and a little less shining 
than the rest. Venter pale yellow, with two broad black bands 
before the end and clothed with long white hair. Legs reddish 
yellow ; femora blackened towards the base, those of the hind pair 
more broadly, having only the apex yellow; tarsi black, the hind 
pairs yellowish at base. Wings hyaline, with black veins, narrowly 
yellowish towards the base; mediastinal cell dark yellowish over its 
whole length, but the stigma not at all blackened at the base ; vena 
spuria strongly chitinised, as black as the other veins ; the shape 
ot third vein and of the subapical cell are exactly the same as in 
Las. pyrastri. 
Type 2, a single specimen, from Marsabit, British East Africa 
(R. J. Stordy). 
23. Syrphus inflaticornis, sp. n. 
Q. Length 11 mm. 
Easily recognised by the very long, swollen, and pointed third 
antennal joint, and by the distinetly swollen basal joint of hind 
tarsi. 
Head black; frons wholly black, strongly shining, with purplish 
reflexions towards vertex and above antennze, towards the middle 
