New chalcidoid from Paraguay. 399 



at least two and a half times the lengtli of the stigmal vein which 

 is well developed, slender, ending in a sniall triangulär knob. 

 Posterior wings with long marginal and submarginal veins, also 

 clouded and similarlj' ciliated. 



Legs all slender, the posterior coxae largest, conical, not 

 especially large, all of the tibiae compressed at the apex, the 

 cephalic femora curved, slightly swollen but not noticeably so, all 

 tarsi 5-jointed, the proximal Joint of the intermediate tarsi ventrad 

 convexed, with very dense black teeth and brush-like pectinated 

 whitish hairs, the second, third and fourth joints similarly armed 

 but less extensively; also the large tibial spur of the intermediate 

 legs is coarsely serrated or toothed along the whole of its ventral 

 surface and above peculiarly sculptured with rather coarse radiatiug 

 Striae. Claws slender, simple; cephalic tibial spur curved, slender, 

 at the end delicately divided. Tibial spurs of caudal legs double, 

 straight, Single elsewhere, the tarsi of the cephalic and posterior 

 legs and the terminal tarsal Joint of the intermediate legs armed 

 beneath with straight, stiff setae. 



Mandibles with at least one tooth, a lateral, outer, acute one. 



Male. Unknown, 



A genus distinguished by the long exserted ovipositor, the 

 peculiar armature of the intermediate tarsal joints, the 11-jointed 

 antennae, the long postmarginal vein, the slightly swollen cephalic 

 femora brilliant metallic color, clouded wings and the non-compressed 

 caudal tarsal joints. 



The type species is described herewith. 



1. Ooderoidea puvj)urea n, sp. 



Female. Length 6,35 mm, exclusive of ovipositor. Large, 

 ichneumonoid. 



General color brilliant metallic purple, breaking into French blue 

 at different angles, the abdomen darker, black-blue with purplish 

 reflections, its tip dorsad metallic blue; all coxae and cephalic 

 femora concolorous with body, the cephalic tibiae and tarsi brownish, 

 the antennae excepting the scape which shows metallic blue and 

 purple, the intermediate femora excepting extreme tip and a yellowish 

 ring near base, the posterior legs excepting the femora which are 

 like the antennal scapes nearly, all black, the intermediate tibiae 

 half yellowish white (proximad) and half black; tarsi of intermediate 

 and posterior legs with some brownish. Venation dark brown. 



