550 ephemerinj£. 



Palingenia longicauda, Burm. Handb. Ent. ii. 803, 2. Westw. 

 Intr. Class. Ins. ii. 33. Pictet, Hist. Nat. Neur. Eph. 155, 7, 

 pi. 14, 15. 



Germany ; France. 



8. Palingenia Savignyi. 

 Descript. de VEgypte, Neuropt. Savigny, pi. 2, f. 5. 



Palingenia Savignyi, Pictet, Hist. Nat. Neur. Eph. 157. 

 Egypt. 



9. Palingenia atrostoma. 



Palingenia atrostoma, Weber, Obs. Entom. pi. 99, 1. Pictet, Hist. 

 Nat. Neur. Eph. 157. 



Brazil. 



10. Palingenia lata. 



Subimago. Testacea ; caput fuscum ; thorax fusco bivittatus ; 

 abdominis dorsum fuscum ; seta lata, pilosce, corpore triplo 

 longiores ; alee fuse ce. 



Male. — Testaceous, rather broad : head mostly brown : thorax 

 with two brown stripes (which are broadest on the prothorax), and 

 with some slight brown streaks : abdomen less than twice the length 

 of the thorax, brown above except on each side: seta; pale testace- 

 ous, broad, hairy, thrice the length of the body : wings brown, 

 with about twelve distinct longitudinal veins ; transverse veins few 

 and indistinct especially towards the hind border. Length of the 

 body 9 lines ; of the setae 27 lines ; of the wings 20 lines. 



a, b. Silhet. From Mr. Sowerby's collection. 



11. Palingenia viridescens, Fern. 



Cinereo-fusca, subtus testacea; antennce nigrce ; abdomen apice 

 testaceo bivittatum ; setce testacece abdomine breviores ; pedes 

 testacei ; aim subcinerece. 



