PEIILIDES. 169 



92. Per LA Opis. 



Nigra, nitida^ concolor ; "prothorac'is latera cnnvexa ; aid obscurt 

 fusco tinct(V, venis saturatioribus. 



Chloroperla Opis, Ncwm. Mag. Nat. Hist, new series, iii. 8!>, 11. 



93. Perla viridella. 



Perla viridella, Ramh. Hist. Nat. Ins. Neur. 456, 14. 

 Chamounix. 



94. Perla chlorella. 



Perla chlorella, Ramb. Hist. Nat. Ins. Neur. 457, 15. 

 Europe as far as Suiilh SpaiD. 



95. Perla tenella. 



Perla tenella, Ramb. Hist. Nat. Lis. Neur. 457, 16. 

 France. 



Div. 3. 



Antennae setaqne caudales elongatEE. Pedes elongati. Alarum 

 auticarum vena) apicales parallelae 6, venulis transversis numerosis 

 intersectae. 



TiCptoperla, Neivrn. May. Nat. Hist, new series, iii. 89. 

 96. Perla Beroe. 



Fmca ; pedes anteriores fusci, (ibiis medio testaceis ; femora pos- 

 tica testaeea, (ipice fiisca ; alee opaete fuscce, versus apiecm 

 maculis albidis notatw. 



Leptoperla Beroe, Nernn. Mag. Nat. Hist, neiv series, iii. Hj>, 1. 



Van Dieman's Land. 



97. Perla citrinella. 



Lutea ; caput thorace non latins; antenna: fusca:, basi pallidfr ; 

 scutum antice et apud sulcum nigricans ; aid limpida. 



