P. CAMERON. HYMENOPTERA. 211 



narrowed towards the apex, which is half the width of the base, a large mark on the apical 

 slope, the base a little dilated in the middle ; it is slightly gradually dilated towards the apex 

 and is longer than wide; the black latéral part is about one third of its width; tubercles, a 

 large irregular longitudinal mark on the lower part of the mesopleurae, the basai part smaller 

 than the apical, and projecting downwards; the apical part is longer, projects above and 

 below and is gradually narrowed towards the apex; the 2 parts are united by a narrowed 

 neck; the usual oval spot below the hind wings, a large mark on the apical half of the 

 metapleurae, its top broad, bluntly rounded and slightly projecting at the base; it is gradually 

 narrowed below, where it is not quite half the width of the top, and lias an oblique slope ; 

 a large oblique spot on the malar space; the base of the i st abdominal segment to near the 

 spiracles, the centre of the mark longer than the sides, and the apices of the 2 n(i to 7* abdominal 

 segments, the lines on the 2 nd , 3 r d and 7 1 ' 1 wider than the others, that on the 2 nd and 3 ld 

 dilated backwards at the base; that on the 7 t h dilated backwards along the sides to the base 

 of the segment, the lines on the 4* and 5 th narrower than those on the 3 rd and 6 th , yellow. 

 Four front legs whitish yellow, the tarsi black, the fore femora and tibiae black behind, the 

 middle black at the base and with a longer line shortly beyond the middle, the tibiae entirely 

 black behind; the hind legs black; the coxae with a curved mark on the base reaching close 

 to the middle, the apical trochanter and the base of the femora narrowly yellow, the femora 

 red except narrowly at the base and apex. Wings hyaline, iridescent, the nervures and 

 stigma black. Ç. 



Length 18 mm., terebra 9 mm. 



The apical half of the 6&, the 7A, 8 th , 9 th and basai half of the io th antennal joints 

 are white, as are also the palpi. Clypeus sparsely, strongly punctured, the depressed apex 

 has a smooth triangular area in the centre; the part bordering this is finely, closely transversely 

 striated; the apex is transverse, margined; the rest of the head is smooth and shining. Pro- 

 and mesothorax finely, closely punctured, except the lower part of the propleurae and the 

 apex of the middle lobe of mesonotum. The centre of the base of metanotum weakly trans- 

 versely, the rest more strongly, obliquely striated, the striae more or less twisted; the apical 

 part at the top transversely striated, the striae irregular, the bottom part smooth in the 

 middle, the sides strongly transversely striated. As usual the metapleurae are more strongly 

 and regularly punctured than the mesopleurae. The tibiae armed with short, pale spines. 



Xanthocryptus, Cam. 



Proc. Zool. Soc. Lond., 1901, 233. 



An examination of the 2 species of the genus quoted above, convinces me that it is 

 to be referred to the Xoridini. The depressed apex of the clypeus is as in that group, while 

 the spiracles on the ist abdominal segment are placed nearer the base — almost in the middle — 

 than they are in the Cryptinae. It has the legs as in the Xoridini. It has narrow, but distinct, 

 mesonotal [and sternal furrows as in the Cryptinae, while the alar neuration does not differ 

 appreciably from that group ; in fact the neuration is quite as in Mesostenus. It is undoubtedly 

 a binding link between the Cryptinae and the Pimplinae. 



