92 SYBPH1DJK. 



dark fringe ; halteres with a yellow stalk and darker knob. Abdo- 

 men entirely shining blackish aeneous, very shortly dark pilose, only 

 on the sides with longer and paler hairs ; the fore halves of the 

 segments are slightly greyish pollinose, while behind there is an 

 indistinct transverse dull black band, nearer to the hind border and 

 produced forwards towards the middle. Venter black and with 

 black hairs. Legs black, with pale and black hairs ; hind femora 



Fig. 15. Eristalodes seychellarum, sp. n. $. 



shining, thin ; all the tibiae yellowish near the base, the anterior 

 four more broadly ; tarsi black, the first joint yellowish ; claws 

 black, with reddish base. Wings distinctly infuscated, with black 

 veins, the vena spuria being also darker than usual ; stigmal 

 spot very elongate, entirely black ; the venation is normal, the 

 discal cell not append iculate, and the second basal cell not dilated 

 towards its upper corner. 



Type $ , a single specimen from Mahe, Seychelles. 



Genus 16. ERISTALIS, Eondani (1844). 

 The following species are represented in the collection : 



1 (2) Eyes with two "bands of brown hairs; 



hind femora thin ; wings without any 

 pubescence and with the kink in the 

 third vein rounded ................ tenax, L. 



2 (1) Eyes with unicolorous hairs ; hind 



femora much thickened ; wings minutely 

 pubescent and the kink in the third 

 vein rather angular. 



3 (4) Wings unspotted ; facial tubercle black ; 



hind femora with the basal half bright 



yellow ............................ daw/ops, Wiecl. 



4 (3') Wings with an apicpl brown spot ; facial 



tubercle reddish ; hind femora wholly 



brown ............................ meromacriformts, .p. n. 



