46 PERLIDES, 



15. Pebla Servillei. 



Caput macula nulla occipitali : prothorax longitudine multo latins. 



Pevla Servillei, Pictet, Hist. Nat. Neur. Perl. 175, 10, pi. 9, f. 11 — 

 14. 



Egypt. 



Div. ? 



16. Perla Ligea. 



Fusca ; fades testacea ; ahdomen testacewn, lateribus saturatiori- 

 bus ; alee vix hyalince, cruceo-fusco tinctce. 



Isogenus Ligea, Neivm. Mag. Nat. Hist, new series, iii. 84, 1. 



17. Perla Clio. 



Fusca ; capitis latera circa oculos flavida ; prothorax litua medi- 

 ana longitudinali jiavida ; abdomen testaceum. 



Isogenus Clio, Newm. Mag. Nat. Hist, neic series., iii. 86, 7. 



rt, b. Georgia. From Mr. Abbot's eoUeclion. 



18. Perla Drymo. 



Fusca; caput testaceum, clgpeo mncularjue quad rata postica fuscis ; 

 prothorax fuscus, maculis duabus magnis Icete testaceis signa- 

 tus ; femora basi pallidiora. 



Isogenus Drymo, Newm. Mag. Nat. Hist, neio series, iii. 86, 6. 



«, b. Georgia. From Mr. Abbot's collection. 



Group 3. ACKONEURIA. 



Caput magnum. Alse elongatse. VenEB longitudinales regu- 

 lares. Regionis submarginalis pars terminalis venis transversis di- 

 visa. Alarum posticarum regio analis magna, plicata. 



Acroneuria, Pictet, Hist. Nat. Neur. Perl. 144. 



Terminal part of the subraarginal region divided by cross- 

 veins ; longitudinal veins of this same part regular : head large : 

 maxillcB unidentate. Species with elongate wings, and with the 

 likeness of the group Perla. 



