Manchester Memoirs^ Vol. xliii. (1899), No. 3. 81 



Chaoilta LAMMELLATA, Sp. nov. 



Capite, thorace pedibusque anterioribus luteis ; antennis, 

 abdomine pedibusque posticis nigris ; alls fiavo-hyalinis, 

 apicefumatis. ? . 



Long. 17 ; terebra 23 mm. 



Scape of the antennae rufous, black in the middle 

 above ; the flagellum black ; its base and the scape 

 sparsely covered with long, black hairs. Head smooth 

 and shining, the face sparsely covered with long, fulvous 

 hair. Mandibles yellowish ; deep black at the apices ; 

 their base sparsely covered with long, fulvous hair ; the 

 palpi luteous, covered with long, fuscous hair ; the second 

 joint dilated. Thorax above very smooth, shining, and 

 glabrous ; as are also the pro- and meso-pleurae ; the 

 metapleurae thickly covered with long, fuscous hair ; the 

 propleurae have a wide and shallow oblique depression 

 shortly below the middle ; over the sternun is a narrower 

 and deeper furrow ; before the middle of the mesopleurae 

 is an oblique furrow, narrower and deeper under the wings, 

 wider and shallower lower down. The prosternum deeply 

 furrowed in the middle, the furrow at the apex becoming 

 widely and roundly dilated and showing a yellow triangular 

 space between ; the furrow on the mesosternum largely 

 triangularly dilated towards the apex. The four front 

 legs are of a paler yellow than the thorax ; the middle 

 coxae in the centre behind, and the greater part of the 

 basal joint of the intermediate trochanters, black; the 

 hinder legs are entirely black. Wings : the stigma black 

 at the base and apex ; the nervures luteous ; the second 

 cubital cellule is longer than the third and twice the length 

 of the first. Abdomen deep black ; the edges of the petiole 

 and the ventral surface whitish ; the first to the 

 fourth dorsal segments strongly longitudinally striolated ; 

 the depressed sides of the petiole much more finely and 



