Parasitic Hymenoptera. 339 



louger and inore slender, the thorax wants the white markings; 

 the metanotum has only 1 keel and the trausverse mediau 

 nervure is broken above the middle. 



1. Rhynchocryptus violaceipennis sp. nov. cf. 



Black ; the wiugs nniformly fuscous violaceons, the apex 

 of clypeus rufous ; a line ou the lower half of the inner 

 orbits, oue on the centre of the ou ter, tegulae,. scutellum, 

 except the basai slope, a large mark, louger than wide, 

 trans verse above and dilated lateral ly at the apex, and the 

 apices of the basai 4 abdominal segments, whitish yellow. 

 Legs black ; the 4 anterior femora and tibiae and the base 

 of the fore tarsi, rufo-testaceous. The hind coxae with a 

 large white mark above. — Length 13 mm. 



Face and clypens closely punctured, the rufous apex of 

 the latter smooth. Upper part of front transversely striated, 

 the lower smooth; the vertex closely, finely punctured. Pro- 

 and mesothorax closely puucture 1 ; the scutellum sparsely 

 punctured along the sides. Metanotum closely reticulated ; 

 the apical slope more irregularly, widely and transversely 

 than the base« Metapleurae reticulated somewhat coarsely 

 above, the lower part closely rugosely puuctured.. Abdomen 

 shining, almost entirely smooth. Tarsi spinose below. 



Cape. 



Idiostoma gen. nov. 



Clypeus rouudly couvex, its apex ending in a longish, 

 stout tooth ; the lateral ridges stout, broad ; it is clearly 

 separated from the face by a dépression. Labrum hidden. 

 Median segment with 2 transverse keels, widely interrupted 

 in the middle; the spiracles about 3 times longer than wide; 

 the whole segment is strongly, rugosely punctured. Apex of 

 post-petiole about 3 times wider than the pétiole ; it is not 

 distinctly separated. Transverse median nervure iuterstitial ; 

 disco-cnbital nervure broken by a distinct stump of a nervure; 

 trans verse median broken in the middle. Metapleural keel 

 complète. 



Head cubital, the temples wide; it is wider than the 

 thorax. Eyes very slightly converging above ; the malar 

 space longer than the antenual scape. The wings short, 

 yellowish-hyaline. Thorax 3 times louger than wide. Legs 

 long ; the long tarsi closely spinose below. Antenuae ringed 

 with white, slightly narrowed towards the apex ; the basai 

 joints of flagellum elougate, the Ist longer than the 2^d, 



