1901.] HYilEXOPTEBA OF THE lt SKEA.T EXPEDITION."' :\~ 



ICHNEUMOXIDJE. 

 .TOPPIXI. 



Ataxy joppa, gen. no v. 



Antennae short, distinctly shorter than the abdomen, thickened 

 and compressed beyond the middle. Clypeus not separated from 

 the face by a suture ; a fovea on either side of it above ; its apex 

 slightly and roundly incurved in the middle : the labruni distinctly 

 projecting. Face flat. Mandibles bidentate at the apex ; the lower 

 tooth much smaller than the upper. Occiput margined, roundly 

 incised. Scutellum flat, broader than long, its sides keeled. 

 Median segment depressed in the middle at the base ; it is distinctly 

 areolated. Gfastrocceli not very distinct, elongate, narrowed towards 

 the apex. Areolet 5-angled, narrowed above, the recurrent nervure 

 is received in its centre ; the apical abscissa of the radius is curved 

 upwards at the base. Legs stout ; the base of the front tibia? 

 deeply incised ; the claws are simple. Abdomen long, three times 

 the length of the thorax, which is not much longer than the basal 

 two segments united. Petiole curved at the apex ; its spiracles 

 are placed near the base of its apical fourth ; the ventral fold 

 extends to the apex of the 4th segment ; the segments are prod uced 

 laterally at the apex ; there are 7 segments, the last two are large 

 and form a sharp, somewhat triangular point. Ovipositor short. 

 The middle segments of the abdomen are longitudinally striated. 



In Ashmead's classification of the Joppini (Proc. U.S. ]S T at. 

 Museum, xxiii. p. 13) this genus comes nearest to the American 

 genus Lindigia, Ivreichbaumer, which is, however, very different 

 in form. The characteristics of the genus are the very short, 

 strongly dilated antennas, the very long abdomen, with its middle 

 segments sharply dilated at the apex, projecting labrum, and flat, 

 strongly keeled scutellum. 



[Ataxtjoppa flavomaculata, sp. n. 



Nigra, promesoihoraceque albo-maculatis ; metathorace rufo; abdo- 

 mine late albo-lineato ; pedibus anterioribue albis, posticis »i>/rta, 

 f>asi tibiarvmn late alba ; alls hyalinis, stir/mate testaceo. $ . 



Long. 17-18 mm. 



Jlab. Borneo (Shelford). 



Antennae short, scarcely longer than the thorax. Thorax and 

 basal two segments of the abdomen black ; the scape beneath, the 

 basal joints of the nagellum at the apex, and the 7th to 15th more or 

 leas white; the scape smooth, thickly covered with long pale hair. 

 Head large; the face, labrum, clypeus, mandibles, palpi, the inner 

 orbits (widest in the middle and behind the ocelli), and the outer 

 orbits (narrow above and becoming wider towards the bottom) 

 yellow; the black on the Eronl and vertex lias a plumbeous hue; 

 the front and vertex are very smooth and shining; the lace is 

 obscurely punctured in the middle, the clypeus a1 the base. 

 Labrum thickly fringed with long hair. Thorax : the edge of the 



