290 Mr. E. E. Austen on new 



admedian stripes light grey, interrupted before reaching 

 transverse suture and disappearing altogether after usual 

 triangular expansions behind latter ; crescentic marks on 

 hind margin of dorsum light grey, conspicuous, their inner 

 limbs broad ; on each side of dorsum are following additional 

 light grey markings — a blotch on humeral callus and another 

 immediately behind it, a fleck behind prsesutural depression, 

 another above postalar callus, and a spot at side of base of 

 scutellum (these light grey thoracic markings are more or 

 less indistinguishable in the case of rubbed specimens) ; 

 scutellum sometimes with a median yellowish grey longitu- 

 dinal mark, expanding posteriorly ; pectus and pleur<e 

 mouse-grey. Abdomen : hind borders of segments of venter 

 as well as of dorsum smoke-grey or yellowish grey, on dorsum 

 of second and two or three following segments hind border 

 sometimes broadening into a somewhat triangular expansion 

 in middle, lateral margins of first four segments often 

 occupied by an expansion of the grey hind borders; venter 

 somewhat greyish pollinose, clothed with minute, appressed, 

 yellowish hairs ; in one specimen in the Museum series third 

 and three following segments each exhibit on dorsum a pair 

 of more or less distinct grey admedian spots and also an 

 indication of a grey median stripe. IVings : hind margin 

 usually with a series of light blotches in distal marginal 

 angles of posterior cells, blotch in distal marginal angle of 

 fourth posterior cell generally smaller than others or absent 

 altogether ; a larger or smaller light blotch also present in 

 distal extremity of axillary cell, and sometimes extending 

 into proximal marginal angle of fifth posterior cell ; oblique 

 marks across posterior cells and markings in basal, anal, and 

 axillary cells all of normal type, a larger or smaller double 

 spot on sixth longitudinal vein beyond zigzag mark, latter 

 not connected with basal loop in axillary cell ; discal cell 

 usually with two transverse light marks in middle third 

 (more distal of two sometimes interrupted), and a small and 

 often scarcely visible light fleck near distal extremity : 

 stigma dark brown, well denned, and moderately elongate, 

 beneath it a well defined dark brown blotch, which tapers 

 downwards until it meets discal cell ; pale fleck next costa at 

 proximal end of stigma very small and inconspicuous, but 

 light loop (upper extremity of distal rosette) in marginal 

 cell beyond stigma well developed. Halteres : knob dark 

 brown above and below, stalk and periphery of knob cream- 

 buff. Legs: middle and hind tibiae not, front tibia? very 

 slightly or scarcely incrassate ; basal two-thirds or three- 



