Manchester Memoirs, Vol. xliii. (1899), No. 3. "jy 



the cloud in front of the stigma extends to the edge of 

 the wings on the other side ; easily known from it other- 

 wise by the basal part of the second segment being 

 strongly longitudinally striated; and from B. dodonaeus by 

 its smooth, not striated, petiole and much longer ovipositor ; 

 and B. lepcha may be known from it by its perfectly 

 smooth abdomen. 



Antennae black, slightly longer than the body; tapering 

 towards the apex, covered with a pale, microscopic pile. 

 Head rufo-luteous ; the vertex covered with long, fuscous 

 hair; the front smooth, shining, and bare; furrowed down 

 the middle, the furrow wide at the base, narrowed towards 

 the apex. The tips of the mandibles black ; the palpi 

 pale yellow, covered with long, white hair ; the face 

 obscurely punctured, thickly covered with long, fuscous 

 hair. Thorax smooth, shining, thickly covered above 

 with long, fuscous hair; the basal area of the mesonotum 

 raised at the base; the oblique furrow on the mesopleurae 

 wide and shallow. Legs coloured like the thorax ; the 

 femora sparsely covered with long, pale, the tibiae and 

 tarsi with fulvous, hair. Wings yellowish-hyaline; the 

 apex with a smoky cloud ; at the base of the stigma is an 

 oblique, deep black cloud, which extends from the costa 

 to the recurrent nervure, it having near the apex a round, 

 paler space ; and it is continued to the apex of the wing 

 as a narrow cloud, originating from its base. The hinder 

 wings have also a smoky cloud at the apex. The petiole 

 is rough ; down its middle is a sharp keel, and at its sides 

 a few smaller irregular striations, which form irregular 

 elongated reticulations. The lateral depressions on the 

 second segment large, somewhat triangular and deep ; 

 the segment is stoutly striated, except at the apex, where 

 it is smooth ; at the base are three smooth spaces ; the 

 central is the largest, and is narrowed at the top; the 



