I AAIKIMN. KiiSSilKKS. J>93 



Tho size of the yellow and Mack markings varies. The line on the front may 

 In 1 continuous or divided into three-. 



Sti/us pruinosus, s]>. nov. 



Hlack, densely covered with white pubescence, the pubescence on the face and 

 clypeus silvery; a line on the lower half of the inner orbits, the face, clypeus, except 

 for a large mark in the middle, narrowed and transverse above, slightly roundly dilated 

 laterally, not reaching quite to (he- apex of the clypeus, labrum, mandibles, except at 

 the apex, palpi, a line on the top of the pronolum, roundly narrowed in the centre and 

 obliquely laterally, tubercles, a short line on the mesonotum behind the tegulte, a larger 

 one, obliquely widened from the base to the apex, on the sides of the apical three- 

 fourths of the sculellum, the post-scutellum except the centre of (he base, a line on the 

 sides of the metanotum, including the lower spine, a broad line, roundly contracted in 

 the middle at the base, narrower bands, dilated in the middle and laterally, on the 

 apices of the 2nd, 3rd and 4lh segments, and 3 separated spots - - the central the 

 smaller - on the apex of the Mb, a line, dilated laterally, on the apex of the 2nd and 

 3rd ventral segments and one, not dilated, on the 4th, pale yellow. The antennal scape, 

 except above, pale yellow, the underside of the flagellum yellow tinged with fulvous. 

 Legs black; the underside of the apical three fourths of the anterior femora, the under- 

 side of the middle pair, the posterior tibia 3 except at the apex, the 4 anterior except 

 behind and the tarsi, except the basal 2 joints above, pale yellow. Wings hyaline, the 

 2nd cubital cellule shortly but distinctly appendiculated. $. - - Length 8 mm. 



Merit low lands, Xgare na nyuki, January. 



Eyes distinctly converging below. Upper part of the front distinctly, but not very 

 closely punctured. Puncturalion of thorax weak and sparse. The lateral angles of meta- 

 nolum somewhat deeply and widely incised, the upper part of the incision longer and 

 more curved than the lower, which forms a distinct triangular tooth, as long as it is 

 wide at the base; it is placed in the middle of the apex. 



The cf wants the black mark on the clypeus, there is a continuous line on the 

 apex of the nth abdominal segment; the apical half of the antennal flagellum is brownish. 



The apical tarsal joints are brownish. The abdomen in some lights has a viola- 

 ceous tinge. The 2nd cubital cellule is more clearly appendiculated in some specimens 

 than in others. The metathoracic incision is placed higher up than in most of the species, 

 than in c. </.,,any of those figured by UANDLIRSCH, Verh. /.-!>. (ies. Wien, 1900, p. 474. 

 It seems to be most nearly related (of the tridens group to which it belongs) to teneUus. 



Nysson nasutus, sp. nov. 



Black, the basal 6 joints of the antenna 1 , legula>, the tubercles, the 4 front legs 

 and the last abdominal segment dark red; the hinder tarsi of a darker red colour; the 

 basal abdominal segment with a large mark on the sides, narrow at the base, becoming 

 roundly dilated inwardly at the apex towards the middle of the segment, the yellow of 

 this part being bordered with dark rufous, and the 3rd and following segments, yellow; 



