18 CKNERA OF IIYMENOPTERA. 



The <rc'iK'i:i lu'longiug to tlic-^e tribes are tahulaU'd as I'olldws: 



AntiTior wiiifjs with one r:icli:il cell 2. 



Anterior wiii};s with two rsidial cells 9. 



2. — Anteniue with only three joints 'L 



Anteiiiiie !(-joiiite(l 5. 



Antenna- serrate, witli nion' than nine joints, flaliellate in % 8. 



3. — Anterior wings with an aii])eiidicuhir cell: ])osterior tihi-.e witli a spine: 



% antenna* siinjile Hylotoma Lair. 



Anterior wings witiioiit appendicular cell: posterior tihia- witliuiil spine: 



% antenna' cleft 4. 



4. — Lanceolate cell petiolate Schizocera Latr. 



Lanceolate cell contracted Cyphona Dahlh. 



5. — Lanceolate cell contracted (i. 



Lanceolate cell petiolate 7. 



(5. — Third cubital cell receiving the second recurrent nervure Cladius Illig. 



Second cubital cell receiving the second (and first) recurrent nervure. 



■Camponiscus Newni. 

 7. — Posterior tibijp at apex and base of tarsi broadly expanded and llattencd. 



CrcESUS Leach. 

 Posterior tibia? and tarsi simple, not coinpressed or dilated. 

 Three or four cubital cells, if three the first receiving both recurrent ner- 



vures Nematus I'anz. 



Three cubital cells, the second receiving both recurrent nervures. 



Euura Xewni. 



8. — Lanceolate cell divided by an obli([ue cross-uervure Lophyrus Latr. 



Lanceolate cell contracted in the middle Monoctenus Dahlb. 



9.— Three cubital cells 10. 



Four cubital cells 18. 



Three cubital cells; antennae r2-jointed, the third joint very long. 



Pinicola ih-eb. {=:Xj/ela.) 



10. — (Antennae 4-jointed • Blasticotoma King.) 



Antenna; 5-6 jointed, davate 11. 



Antennae 7-8 jointed, not clavate -Coenoneura Thonis. 



Anteuuffi 9-jointed 14. 



Antenna- 101(5 j(jinteil 17. 



11.— Antennae 5-jointed. 



Po.sterior coxa toothed; blotchf absent, body hairy.. Trichiosoma Learh. 

 Posterior coxte not toothed, blotch ]iresent, l)oily not hairy..Cinibex ()liv. 



Antennje 6-jointed 12. 



12. — Lanceolate cell with a straight cross-nervure *Clavellaiia Oliv. 



Lanceolate cell con tract id I'd. 



*■ (ii-nera prefixed liy an astt ii>k are as yet willioui any described representa- 

 tives in our fauna. 



t "The separation of iln- abdoincn fioni ilic foiirlli thoracic segint-nt (nieta- 

 thoraxj is usually marked by a trans\i'rse incision, covered with a whiti' mem- 

 brane, which, with Ciinhi-.c and many other genera, is very conspicuous, and is 

 called the blotch (nuditag)." 



