6 ENTOMOLOGICAL SOCIETY 



Cresson's synopsis* giving only a few of the known genera) it 

 appeared to me that the early publication of a complete generic 

 table of this difficult group would be appreciated by the student 

 and add considerably to our knowledge of the structure and dis 

 tribution of these chalcidids. 



With this aim in view, I have therefore prepared the following 

 table, which includes all the described genera except BalcJia 

 Walk., which is too insufficiently described to be incorporated : 



TABLE OF GENERA. 

 Females. 



Posterior tibice and first tarsal joint not compressed or not broad (rarely 



with tibiae slightly compressed) 2 



Posterior tibiae and first tarsal joint compressed and broad. 



Eyes hairy; axillae meeting at base of scutellum; antennae 13- 

 jointed (i) Metapelma Westw. 



2 Anterior femora normal 3 



Anterior femora much swollen. 



Winged ; anterior femora armed with minute spines beneath ; 



ovipositor very long (2) Oodera Westw. 



Wingless; anterior femora unarmed; ovipositor subexserted ; 



head large quadrate; eyes rounded, bare; temples broad. 



(3) Ooderella n. g. 



3 First tarsal joint of middle legs with strong spines beneath 4 



First tarsal joint of middle legs without strong spines beneath. 



Scutum of mesonotum not impressed; axillae triangular, meeting 

 at base (4) Charitopus Forst. 



4. Frons rarely deeply excavated, although often with deep antennal 



furrows, the front ocellus never placed in the furrow 6 



Frons deeply excavated, the front ocellus always placed in the furrow. 



Middle tibiae not very long 5 



Middle tibiae very long. 



Antennae inserted near the border of the mouth. 



.(5) Stenocera Walk. 



Antennae inserted far above the mouth border; postmar- 

 ginal vein greatly lengthened (6) Polymoria Forst. 



5. Axillae not united at base, their inner suture strongly curved ; post- 



marginal vein very short, scarcely developed, or rarely longer than 

 the stigmal vein (7) Ratzeburgia Forst. 



6. Eyes bare 7 



Eves hairy or pubescent. 



Scutellum with a broad base against the mesonotum, the axillae 

 therefore widely separated. 

 Hind tibiae with 2 spurs. 



