298 PERCY SLADEN TRUST EXPEDITION 



or less suffused with fuscous, the carinations pale ochraceous ; apical abdominal appen- 

 dages fuscous ; face with four dark spots near anterior margin and a sublateral series 

 of small fuscous spots on each side ; clypeus with oblique dark striae on each side ; 

 tegmina more or less fuscous much darker in some places than in others, two large 

 pale spots in costal membrane, the first usually ochraceous, the second hyaline with 

 the veins ochraceous, and more narrowly continued on radial area, two large oblique 

 hyaline spots on disk, a similar but smaller spot at apex, the apical margin also 

 suffused with hyaline ; wings hyaline, the veins, margin and a longitudinal suffusion 

 near abdominal area, fuliginous ; anterior angles of vertex slightly prominent ; face 

 with the anterior margin truncate, centrally longitudinally carinate, the lateral margins 

 subparallel ; mesonotum with three longitudinal carinations, the lateral ones anteriorly 

 inwardly forked ; posterior tibise with two strong spines. 



Long. excl. tegm. 6 mm. Exp. tegm. 16 to 17 mm. 



Log. Aldabra (Fryer). Assumption (Fryer). 



This species is allied to P. punctifrons Sign., by the sublateral punctate markings 

 to the face, a species recorded from Madagascar and the Comoro Islands. It cannot 

 however be that species as Signoret describes it " elytres entierement hyalines, sans 

 macule au bord superieur." 



185. Privesa melanaria, sp. n. (Plate 49, fig. 6 a). 



Vertex and pronotum ochraceous with fuscous spots, the two most prominent 

 being on vertex ; mesonotum dark ochraceous or castaneous with black macular 

 suffusions ; abdomen above fuscous, the segmental margins pale ochraceous ; body 

 beneath and legs ochraceous, face with two transverse black fascise and a sublateral 

 series of small transverse spots ; clypeus with dark oblique striae on each side ; tegmina 

 brownish-ochraceous, the costal membrane and apical margin hyaline with scattered 

 brownish-ochraceous spots, the disk more or less suffused with darker mai'kings, and 

 in well-preserved specimens greyishly tomentose, a grey curved line at inner margin 

 of apical area ; wings dark fuliginous ; vertex with the anterior angles distinctly acutely 

 prominent, face thus appearing slightly concave at anterior margin, its lateral margins 

 obliquely rounded : pronotum strongly centrally carinate ; mesonotum longitudinally 

 tricarinate, the lateral carinations inwardly anteriorly forked ; posterior tibise with 

 two strong spines. 



Long. excl. tegm. 6 to 6^ mm. Exp. tegm. 17 mm. 



Log. Seychelles. Mahe: Long Island, vii. 1908. Silhouette: near Mont Pot-a-eau. 



The structure and markings of the face give this species a very distinct appearance. 



Privesana, gen. nov. 



Allied to Privesa Stal, from which it principally differs in the width of the costal 

 membrane, which in Privesa is considerably broader than the radial area ; in Privesana 

 it is scarcely more than half the breadth of the radial area. 



