1901.] STNEifOPTERA OJ? THE " SKEAI EXPEDITIOJ^." 39 



commencement of the dilatation M'hite ; the dilated apex has a 

 brownish hue. Head pale yellow ; the middle of the front and of 

 the vertex broadly, the occiput, and the hinder part of the outer 

 orbits to shortly below the middle, black. Face and clypeus shining, 

 flat, sparselv and indistinctly punctured ; the face is covered with 

 short, the clypeus with longer pale, hair ; the apex of the clypeus 

 is more distinctly punctured than the rest ; the projecting labrum 

 is smooth and is fringed with long hair. Mandibles yellow, black 

 at the apex. Thorax black ; the edge of the pronotum, two short 

 marks, narrowed at the base and apex, the sides of the scatellum 

 broadly and of its apes more narrowly, the postscutellum, an 

 irregular mark behind the metathoracic spiracles, the apex of the 

 segment from behind the middle and extending obliquely on to the 

 pleurae, the low^er edge of the propleurae and slightly less than 

 the lower half of the mesopleurae, yellow. Mesonotum smooth, 

 closely punctured in the middle, where the yellow spots are. 

 Scutellum strongly, but not very closely, punctured. Post- 

 scutellum sparsely punctured. Propleurae closely and distinctly 

 punctured ; in the middle are some curved keels, at the apex 

 short striae; the yellow, lower part of the mesopleurae closely 

 punctured. Median segment closely, rugosely punctured all over ; 

 the posterior median area coarsely, closely, transversely striated. 

 The four front legs are yellow ; the femora and tibiae are black 

 behind ; the hinder coxae are yellow, black below and at the base 

 above ; the hinder femora entirely, and the apical part to near the 

 middle and the base narrowly, black ; the hinder tarsi are blackish 

 behind. Wings clear hyaline ; the stigma testaceous ; the apical 

 nervures fuscous. Abdomen black ; the basal four segments to 

 near the middle and the apical two segments entirely yellow ; the 

 postpetiole is closely shagreened and closely striated ; the middle 

 segments are closely punctured ; the 2nd and 3rd segments are 

 longitudinally striated at the base.] 



Mesostenini. 

 Skeatia, gen. nov. 



(^ . Antennae shorter than the body ; the basal joints of the 

 fl.agellum elongated, the middle ones roundly and broadly dilated 

 on the lower side ; the apical ones dilated, about three times 

 broader than long. Thorax three times longer than broad ; the 

 parapsidal furrows deep, reaching to shortly beyond the middle. 

 Median segment, except at the base, coarsely, irregularly reticu- 

 lated ; the basal smooth part is bounded by a stout transverse 

 keel ; in its centre is a small square area. Metapleural keel 

 distinct, long. Areolet small, square ; the apical nervure is faint ; 

 the transverse median nervure is received behind the transverse 

 basal ; the hind wings as in Mesostenus. Legs slender, long ; the 

 fore tarsi nearly twice the length of the tibiae ; their claws are 

 small ; the hinder coxse elongate, about three times longer than 



