7- GENEKA OF HYMENOPTERA. 



TliiTC anleniial joints before tlie clul) of uiUM|iial leiifitli. 



Ovipositor exscrted to more than one-third the U'liiffli of tlic alidomen. 



*l"«'iili'0<lora Forst. 



Oviitositor not at all. or hut slisrhtly exserted Ai>li<'liiiii«<» Dalm. 



3. — Anteuual eluh only 2-jointed ; hind margin of posterior winus with very 



long cilia ^ICiK-iii'Mia Forst. 



Antennal eluh 3-jointcd ; liijid margin of ])osterior wings without very long 

 cilia C'ov('4>i»liii$;uM Westw. 



Suhfainily Pirenin^. 



Wings with postmarginal and stigmal very short ; ventral valvules not reaching 

 to anus: antennai short, elavate, at least the first two funicle joints 

 aunuliforni. 

 Antennse with two ring-joints; eyes of % strongly converging almve. 



]VIa<*i*ogloiieM Westw. 

 Auti'unie with at least three ring-joints; scutellar frenuni horizontal. 



*l*ii*<'iH' Hal. 

 Wings with postmarginal and .stigmal veins long; ventral valvules reaching to 

 anus; antenme with one or no ring-joints; ovipositor ex.serted. 



*II«'iiit'«»li*ii!>» Thoni. 



Wings with jiostmarginal and stigmal veins luoderately long: ventral valvules 



not reaching to anus; antenna- without ring-joints; ovipositor not 



exserted; abdomen with a large tuft of hair on each side of i)etiole. 



l>il4»|>li4»KaNf<'r llow.ird. 



Subfamily Tridymin^e. 



.Vntennse inserted slightly al)ove the clypeus, which is rounded and produced at 



apex ; parapsides distinct *Tri<l.viini!«i Katz. 



Antennie inserted at the middle of the front ; clypeus not produced ; anteuuiv 

 with both ring-joints visible. 

 Parapsides plain ; front impressed with many dots. 



Wings ciliate at a])ex ^»Ollliol4'lllI^> \\ ( .-^iw . 



Wings not ciliate; thorax slightly rugoso-jjunctate *S.Vsla>*i>» Walk. 



Parapsides not plain ^.Mota*ttC'iiii>< Walk. 



Subfamily Spalaxgix.k. 



Bodyieneous; wings with a short mjirginal vein. ^iMOcratiiM Fcirst. 



Body wingless, or with a long marginal vein. 

 Body not at all or very slightly metallic; frenuni not discerniiile. 



Body not metallic;; mesothorax opaque, pvmctate ; abdomen conico-suluilaic. 



*Tri04»r,<i pliiis Fn r>i. 

 Mesotlun-ax submetallic, polished. 



Body winged; melathorax strongly punctate. ...*C'«'lMM*«'|>liala Westw. 

 Body winged or wingless; metathorax smooth ; mandibles of usual size. 



Tli<'0<'olii« Westw 

 Body winged; mandibles very large, three times the iengiii of the head. 



^I'airala'Mlliia (am. 



Body metallic; antennie inserted in the anterior margin of tht- ohlcjiig juail ; 



frciuim large, distinct ^»|>ala■l^ia Latr. 



