A New Genus of Chalcidoid Hym 



A. A. GEEAULT 



Tribe ISOPLATINI 



Coelocybella new genus 



Female: — Head normal, rounded, the vertex broad, the lateral 

 ocelli distant from the eye margin, the antenna inserted near the 

 middle of the face, slenderly clavate, 13-jointed with three ring- 

 joints, five funicle joints and three club joints, all these joints 

 wider than long excepting the conical distal joint of the club. 

 Pedicel long obconic, as long as the four joints following (the 

 ring joints and the proximal funicle joint), half as long as the 

 cylindrical scape. Occipital margin obtuse; prothorax conical, 

 short; mesoscutum with complete, distinct parapsidal furrows, 

 scutum slightly longer than the imgrooved scutellum. Propo- 

 deum with a very weak median carina, the spiracles moderate in 

 size, round, no lateral carinae nor sulci. Abdomen sessile, broad 

 oval, depressed, about as long as the thorax, the second segment 

 about a third of its length, the ovipositor not exserted, the abdo- 

 men from dorsal aspect ovate, widest about the middle, wider 

 tliau the thorax. Submarginal vein unbroken, at least two and 

 a half times longer than the marginal, the latter nearly twice the 

 length of either the stigmal or post-marginal, both of which, for 

 them, are moderately long, the stigmal vein with a rather large 

 rounded knob and a distinct neck which is as long as the diameter 

 of the knob. Diseal cilia dense and fine, the marginal very short. 

 Tarsi five-jointed, the tibial spurs single, the intermediate longer, 

 one very long, the i)Osterior one short, stout. Non-metallic, 

 marked with yellow, the wings hyaline. Abdomen wider than the 

 head or thorax. Axillse separated by a short distance. Mandibles 

 bidentate, the inner or second tooth truncate, unequal in the two 

 mandibles. 



Male : — Not known. 



Because of the venation, this genus will not be confused with 

 the Tetracampini but its five-jointed tarsi make it unique for the 



