20 GENERA OF IIYMENOPTERA. 



28. — Antenna' setaceous, longer tlian atxloinen ; pleune limailly marked with 



white Pachyprotasis Hartig. 



Antenna' short, thick ; pleura' .seldom maculate Macrophya Dahlb. 



29.— Antenna- shorter than the head and thorax, thickened at the apex, never 



filiform or setaceous 30. 



Antenna- lonjier than tlic liiad and thorax, tiliforni or setaceous, seldom 



fusiform 31. 



30. — Eyes con%erginf;. reaching to the base of the mandibles; labrnm rounded 



at apex Allan tus Panz. 



Eyes not converjiinfr, not reaching; to the base of tlie mandibles; labrum 



incised at apex Sciopteryx Steiili. 



31.— Blotch absent; third and fourth joints of antennse sultequal ; stigma white 

 and fuscous or entirely white; scutelhmi and ])()stscutelluiii white. 



Tenthredopsis Costa. 



Blotch distinct; third joint of antennje consideralily longer than fourth; 



stigma black or green ; i)Ostscutellum not white ..Tenthredo Ltacli. 



32. — Antenna- with not more than eighteen joints, dentate; jjosterior tibia' with 



three spines *Tarpa Fabr. 



Antenna? with more than eighteen joints, filiform ; ])osterior tibia' with 

 three spines Lyda Fabr. 



The tribe (subfamily) Texthkkdina Is then divided into tlie fol- 

 lowing ,siibtribe.s : 



Antennae 9-jointed ; basal nervure received at a distance from the cubital ; poste- 

 rior wings with two middle cells. 

 Anterior wings with two radial and four cubital cells, the second and third 

 receiving each a recurrent nervure; lanceidate cell subcontracted, or 

 with a perpendicular and more rarely with an obliciue cross-nervure. 



Tenthredinides. 



Anterior wings with two radial and three cubital cells, the second cul)iial the 



largest and receiving two recurrent nervures; lanceolate cell with an 



obli((ue cross-nervure Dolerides. 



Antennae T-lo-jointed ; anterior wings with two radial and three or four cubital 

 cells; lanceolate cell petiolate or open, with an olili(|ue cross-nervure 

 or contracted ; basal nervure joined to the cubital ; posterior wings 

 rarely with two middle cells, often with one or none Selandriades. 



The Tentiiredinide.-i contains the genera Tenthredo, Tenlliredopim, 

 Sipupremn, Allnntus, Scioptery.v, Paclujprotusis and Mucrophi/a. 



The 1 )i)l('iid('s contains oidy the genus Doleni.s. 



The Selandriades include iStrongi/lor/nster, Selandria, Taxonus, Pceci- 

 lodoma, Erioeavipa, Blennocampa {= Mo)io})h(idim.< mid P/ii/)ii(docera), 

 IIo/i/ocdin/Mi, ILirjjiphoriiM, EmphijiiiK, PJii//l(>fo)iiti, Fotella, Fenasa, 

 Ifipidinrlnx i= Ornonenra) and Athdlin in the order given. 



The .second volume is devoted entirely to the Nematina, and ccjii- 

 tains the genera Hemichroa, Dineura (^= Mesoneura), Cladim (= 

 JViophonis), Camponinnm, Crocsna, Xemrdn.s {= Me^xa), and Kmira 

 (= Oryptocitmpuif). 



