62 GENERA OF HYMENOlTEUA. 



Miirfriiial iiprviirc siirinjiinK from any otlier (toiiit of the stifruia. 

 Second and third ahdoniinal sntnres marked l>y wide, slnillow, tratisverse 

 depressions, not reaching tlie lateral niar>;ins. .^Plunlroloiiia Fcii-st. 

 Second and tliird ahdoiuinal sutares inconspicuous OpiiiN Wesni. 



Division v.— EXODONTES. 

 Subfamily Alysiin.t-:, 



Apterous in hoth sexes M'lutNlllodoil Hal. 



Winjred ; tlie winjis generally aniiiie. rarely ahhreviated 2. 



2. — Wings 9 rudimentary, without neuration ( "Ji unknown). 



*l*anrreina Fiirst. 

 Wings % 9 ampJ'^' very rarely abhreviated and then with rlistinct neiira- 



tion H. 



:i. — First subniarginal cell separated from the second 4. 



First suhniarginal cell confluent with the second .'"'SyiialfliN Fiirst. 



4. — First transverse cubital nervure as long as the se<'ond branch of the marginal 



nervure or longer 5. 



First tnmsverse cubital nervure shorter than the second branch of tlu mar- 

 ginal nervure (i. 



i>. -First subniarginal cell confluent with the fii-st discoidal .*Syii<'raHis Fiirst. 

 First submarginal cell separated from the first discoidal. 



Fourth joint of antennsF longer than the thii-d '*I<liaNta Fiirst. 



Fourth joint of antenme not longer than the third. 

 Second abdominal segment roughly punctured and nearly bisected by an 



impre.s.sed transverse line *Tra<'liyiiNa Ivuthe. 



Second abdominal segment .smooth and without any transverse line. 

 Metathorax carinate : wings occasionally abhreviated. but still with 



distinct neuration, % 9 *Dia!*|>a!»ila Fiii-st. 



\[etathoi"ax not carinate; wings always complete. 



Furrow of mesopleurse obsolete or smooth .*PenlapIeura Fiirst. 

 Furrow of mesopleurse distinct, rugose or crenate. 



Subdiseoidal nervure interstitial *C'rafo!>i|»ila Fiii-st. 



Subdiscoidal nervure arising from middle of second discoidal cell. 

 Stigma short, oblong, emitting the marginal nervure beyond the 



middle .llyxia Latr. 



Stigma elongate, lineari-lanceolate, emitting the marginal ner- 

 vure before the middle ^Taii.vcarpa Fiirst. 



«). — First submarginal cell confluent with first di.scoidal .\pli.t'reta Fiirst. 



First subniarginal cell sejiarated from first discoidal 7. 



7.— Fourth joint of antennae longer than third; submedian cell of |iusierior 

 wings less than half as long as the meclian. 



Marginal cell not reaching aju'x of the wing '^Iloiliopllj'la Fiirst. 



Marginal cell reaching apex of the wing *Flitmo<*arpa Fiirst. 



Fourth joint of antenna' not longer than third; submedian cell of posterior 



wings lialf as long as the median H. 



H. — Stigma elongate, attenuate, but still somewhat thicker than metacarpust-..!t. 

 Stigma wanting, i.e., not thicker than the metacarpu.s '^'Ai^pilota Fiirst. 



t The costal margin from stigma to apex of marginal cell. 



