151 



ON TWO NEW GENERA OF CHALCIDIDiE FROM 



BORNEO. 



By p. Cameron. 



Elemba, gen. nov. 



Pronotum quadrate, of equal width, narrower than the meso- 

 notum, wider than long. Mesonotum without parapsidal furrows, 

 the mesosternum bordered by a distinct lateral furrow. Scutellum 

 large, longer than wide, its sides bordered by a distinct crenulated 

 furrow ; it is not narrowed at the base ; its apex rounded, only 

 slightly narrowed, and witli an oblique rounded slope. Head as wide 

 as the thorax ; the temples distinct, roundly narrowed. Head longer 

 than wide ; the malar space not quite half the length of the eyes, and 

 with a narrow but distinct furrow above. There are two longish deep 

 foveae on the lower part of the face in the centre. Mandibles large, 

 broad, short, furrowed in the middle at the apex, probably bidentate. 

 Antennae apparently twelve-jointed ; the apical joint flattened, longer 

 than the preceding ; the front is excavated to receive the scape, and 

 has a stout keel on its lower part. Abdomen distinctly narrower than 

 the thorax, flat above, the basal two segments incised at the apex, of 

 nearly equal length ; the sheaths of the ovipositor broad, covered 

 with stiff hairs, half the length of the abdomen. Legs moderate, the 

 femora not dilated to any extent ; the middle calcaria long, stout, 

 the posterior short, slender. Marginal branch in fore wing elongate, 

 gradually narrowed to near the apex of the wing; stigmal branch 

 moderately long, curved, almost bifid at the apex. The antennge are 

 slender, the flagellum is of equal width; the first joint of theflagellum 

 is more than twice longer than wide, twice the length of the following, 

 which is shorter than the next. The basal joints of the flagellum are 

 covered with short, stiff", black hair. On the apex of the mesopleurse, 

 above the middle coxae, is a triangular space bounded by deep furrows. 

 Tegulae large, conchiform. Abdomen (not counting the ovipositor) is 

 long, narrow, narrowed towards the apex, the sides not keeled. Eyes 

 liare. Labrum hidden. The first abdominal segment is much longer 

 than the others. The metanotum is not keeled ; the centre is bounded 

 by two furrows. The head is not narrowed in front. 



This genus comes close to Epistenia, which may be known 

 from it by the presence of parapsidal furrows, and by the basal 

 abdominal segments being transverse, not incised. 



Elemba levicollis, sp. nov. 

 Head and thorax dark blue, the apex of mesopleurae and the 

 metanotum green, abdomen dark purple above, the sides blue, the 

 apices of the apical segments more or less coppery ; antennjB black ; 

 legs black, the fore legs tinged with violaceous, the fore coxae dark 

 blue, the four hinder green, thickly covered with short white pube- 

 scence. Wings hyaline, broadly, slightly tinged with fuscous at the 

 apex ; the nervures black. ?. Length, 11 mm. ; ovipositor, 4 mm. 



Kuching, October (John Hewitt). 



