Manchester Memoirs, Vol. xlvii. (1903), No. 14. 21 



and plate-like at the sides ; the segment is thickly covered 

 with longish pale hair. The pleurae are smooth ; the 

 apex of the propleunt is furrowed ; the base of the meso- 

 pleura^ is depressed on the lower side, irregularly, stoutly 

 striated and keeled behind ; the middle is obliquely 

 depressed and bears a few keels ; the metapleurae smooth, 

 except for some short striae below the upper curved keel. 

 The wings have a faint fulvous tint ; the stigma is testa- 

 ceous ; the areolet is large, almost square ; the transverse 

 cubital nervures are parallel ; the recurrent nervure is 

 received in the middle ; the second transverse cubital 

 nervure is faint ; the recurrent nervure is largely bullated 

 in the middle. The legs are dull fulvous ; the four anterior 

 COX3S and trochanters are paler ; the hinder coxje are black, 

 except at the base above ; the femora above, the apex of 

 the tibiae broadly, and the base of the tarsi arc black ; 

 the rest of the tarsi white. Abdomen black above ; the 

 apices of all the segments narrowly yellow. 



Etha plumbea, sp. nov. 



Pbnnbea ; facie, ore, apiceque metanoti flavis ; pedibics 

 fiavis, coxis posticis, fcvwribiis supra, tibiis basigue tar- 

 sornm posticormn nigris ; alis hyalinis, stigniate nigra. $. 



Long. 10 mm. 



Antennas black, annulated with white beyond the 

 middle ; the scape dirty testaceous beneath ; the flagellum 

 thickly covered with short, stiff hair. Head black ; the 

 face, clypeus, the lower inner orbits, a line on them above 

 the antenna;, and the lower orbits on the outer side, 

 yellow ; the face and clypeus thickly covered with short, 

 white hair ; the clypeus roundly dilated in the middle ; 

 the raised part bordered by a blackish line. The front 

 and vertex are very smooth and shining ; the front is 

 widely furrowed below the ocelli. Thorax smooth and 



