318 J. Wood-Mason — Ethiopian and Oriental Beprese^itatives [No. 3, 



median prominent semicircular below and between the antennas, and 

 two lateral sunken snbqnadrate, between wbicli and tke eyes a very- 

 narrow space intervenes. 



Protborax subrngose, and roiigbly granuloso, especially on tlio 

 edges of the pronotum, mucb elongated, but sborter tlian in Toxodera 

 and Faratoxodera, being not quite equal in lengtb to tbo basal 3| seg- 

 ments of the abdomen exclusive of seg. med., quite straight from end 

 to end ; tbe posterior lobe of its pronotum less steeply roof-sliaped with 

 the sides slightly convex transversely and the ridge line, which is dis- 

 tinctly compressed, especially in front, very shai'p, and feebly arched 

 longitudinally ; the anterior lobe with a raised median line lodged in 

 a shallow furrow, enlarged at the extremity in (?, as in JEtJiahcJiroa. 



Abdomen smooth and polished, without foliaceous lobes, subparallel- 

 sided, very slightly and gradually widening, and bluntly cariuate above, 

 from the base of the 4th to the apex of its 6th segment, theuco nar- 

 rowing more rapidly to its extremity, the last four segments forming a 

 carinated roof-shaped mass with serrated sides ; terga 1-6 with a notch 

 accompanied by a very small and delicate filamentous process at tho 

 middle of the hinder mai-gin ; sterna with the posterior margin arcuato- 

 ly prominent, subcarinate, but without foliaceous duplicatui'es of the 

 integument, in the middle line at hinder end; 10th tergum trian- 

 gular a little broader than long. Ceroi foliaceous, lanceolate, acutely 

 bifid, as in Toxodera. 



Organs of flight in shape and structure very similar to those of 

 Toxodera, both pairs having the apex anterior, and the tegmina, the inter- 

 space between the posterior radial and the anterior prong of the anterior 

 ulnar wide and multicellular. In the tegmina, tho marginal field is 

 opaque and only moderately wide, irregularly and strongly reticulate 

 the stigma, which is long and linear, lies as obliquely as possible upon 

 tbe posterior radial, extending a very short distance into tho interspace 

 on each side of the vein ; the anterior prong of tho anterior ulnar, like 

 the posterior radial, simple, the posterior prong being 3 or 4-branched ; 

 the dividens anastomoses with the posterior iilnar, and may or may not 

 give off an anterior branch which does not do so ; the plicata runs either 

 direct, or after anastomosis with the posterior ulnar, to the posterior 

 margin, but in either case sends all its branches through tho anal gusset, 

 which is hence venose. In the wings there is a distinct anal emar- 

 gination and a simple and unbranched anterior ulnar. 



Anterior legs long and slender ; coxsa with the anterior crest for tho 

 apical two-fifths of its length expanded into a conspicuous dentate 

 foliaceous lobe ; femora narrow, above nearly straight and cari- 

 nate, the carina ending in a sharp supra-genicular lobe somewhat 



