82 GENERA OF HYMENOPTERA. 



9. — Anterior wings with or without a regular basal vein ; flagellum without a 



ring-joint ..Belyijinee. 



Anterior wings with an abruptly broken basal vein, from one end of which 

 arises a cubital vein distinguished by its irregular coui-se ; both to- 

 gether these form an irregular discoidal cell ; flagcllum with one 

 ring-joint "TelorinsB. 



Table of Genera. 

 Subfamily Dryinin^. 



Vertex deeply impressed 2. 



Vertex convex, not impressed 3.' 



2.— With wings Dryinus Latr. 



Without wings Oonatopus Ljuugh. 



'■i. — Occiput deeply concave; vertex and neck separated by a sharp angle. 



'^Xabeo Hal. 



Occiput feebly concave; vertex and neck not so distinctly .separated 4. 



4. —Anterior tarsi J with scissor-like or pincer-like claws; % prothorax visible 



above, but not longer than mesothorax. 5. 



Anterior tarsi J not scissor- or pincer-like; '^ prothorax above i>ot visible, 



or longer than mesothorax 6. 



5. — Fourth joint of anterior tarsi 9 much longer than third ; prothorax % J 



as long as, or nearly as long as mesothorax Chologyiiiis Hal. 



Fourth tarsal joint 9 a^ long as, or scarcely longer than third: jirothorax 



% 9 much shorter than mesothorax Anteoii Jur. 



6. — Prothorax much longer than mesothorax, the latter without a trat ? of a 



furrow; wings short, spoon-shaped *Mystropliorus Foi-st. 



Prothorax above not, ox very slightly visible ; mesothorax very strongly 

 developed, with distinct furrows ; wings %, 9 fully developed. 



^Aphelopus Dahn. 



Subfamily Embolemix.e. 



Eyes arched, ocelli large ; scape shorter than the first funicle joint. 



^Einbolemus Westw. 



Eyes flat, ocelli very small ; scape much longer than first funicle joint ; wings 



rudimentary *Pedinoinma Forst. 



Subfamily Bethylin.e. 



Head without ocelli Sclerochroa Forst. 



Head with ocelli 2. 



•i.~Anterior wings with a complete marginal cell *Siei'ola Cam. 



Anterior wings with a nearly complete marginal cell 3. 



Anterior wings without a marginal cell 4. 



3. — Basal vein with a branch directed backwards. 



Antennse 12-jointed % 9 *Periseinu» Forst. 



Antenna.' 13-j()inted Gouioznsii Forst. 



Basal vein without a branch. 



Parapsidal furrows plain ; abdominal segments of almost equal length. 



Epyris Westw. 

 Parapsidal furrows wanting; abdominal segments of unequal length. 



^Isobrachiniu Forst. 



