(EDALEA. Ill 



Fellow, slender, thinly clothed with black hairs and bristles. Head 

 black. Proboscis pale yellow, blackish towards the tip. Antennae 

 black ; first joint yellow ; second brown ; fifth rather more than half 

 the length of the third. Thorax with an indistinct slender pale brown 

 stripe; disc of the metathorax greyish. Wings colourless; no stigma. 

 Halteres tawny. Tip and hind borders of the segments of the abdo- 

 men brown. Legs yellow, long and slender ; tips of the tibiae darker ; 

 tarsi brown. 



Not common. (E. S.) 



Genus X. EUTHYNEURA. 



EUTHYNEURA, Mq. a. s. e. iii. (1836). 



Proboscis porrecta, capite longior. Antennarum articulus tertius quinto 

 longior. Alarum vena cubitalis simplex ; vena externo-mediaS. Coxce 

 femoribus breviores. 



Proboscis horizontal, longer than the head. Third joint of the an- 

 tennae longer than the ffth. Cubital vein simple ; externo-medial veins 

 3, arising from a discal areolet. Coxa shorter than the femora. 



1. myrtilli, Mq. a. s. e. iii. (1836). Nigra, antennis apice subu- 

 latis, alls limpidis, tibiis basi femoribusque fulvis. Long. 1 ; alar. 

 31in. 



Black, shining, not hairy. Tips of the antenna subulate. Wings 

 colourless ; stigma pale brown. Tibiae towards the base and femora 

 tawny. 



Rare. In Mr. Haliday's collection. (E. I.) 



2. myricse, Hal., MSS. Nigra, gracilis, antennis apice obtusis, 

 alis Umpidis, abdomine attenuate, pedibusfuscis, tarsis nigris. Long. 1^ ; 

 alar. If lin. 



Black, long, slender, not hairy. Tips of the antenna obtuse. Wings 

 colourless. Halteres tawny. Abdomen attenuated, about thrice the 

 length of the thorax. Legs brown, long, slender ; tarsi black. 



Eare. In Mr. Haliday's collection. (E. 1.) 



Genus XL CEDALEA. 



(EDALEA, Mg. zw. ii. 355 (1820) ; Mq. ; Ztt. Empis p., Mn. Xiphi- 

 dicera, Mq. 



Corpus minutum, subelongatum, glabriusculum, nitidum. Color cor- 

 poris niger, pedum pallidus. Proboscis capite brevior. Palpi dilatati, 

 compressi. Antennas 5-articulata3, porrectaa, capite longiores, basi 



