536 EPHEMERIN&. 



Ephemera cognata, Steph. III. Brit. Ent. Hand. v\. 516, 2. Curt. 

 Brit. Ent. 708. 



fl, b. England. 



3. EPHEMERA GLAUCOPS. 



Oculi cyanei ; thorax maris flavus ; setae caudales fulvce,fusco an- 

 nulatce ; alee anticce maculis tribus vel quatuor, posticce im- 

 maculatce. 



Ephemera lutea, Sulz. Ins. 171, pi. 24, f. 6. Burm. Handb. Ent. ii. 



804, 2. 

 Ephemera glaucops, Pictet, Hist. Nat. Neur. Eph. 132, 3, pi. 8, f. 



13. 



Europe. 



Var. ? Ephemera flavicans, Ramb. Hist. Nat. Ins. Neur. 296, 7. 



" A little larger than Cloeon Diptera : yellow : abdomen dull red 

 above, darker on the borders of the segments: filaments three, red, 

 twice the length of the body, with brown rings ; anal appendages 

 horn-shaped, long, slender, contiguous at the tip and forming an 

 oval by their reunion: legs yellow ; anterior legs long, reddish, al- 

 most as long as the body, with red rings at the tips of the thighs, 

 and with brown rings on the other joints : wings large, hyaline, 

 very slightly yellowish, a little darker along the fore border; veins 

 yellow; transverse veinlets brownish. Female paler than the male." 



France. 



4. EPHEMERA GUTTULATA. 

 Alae anticce confertim maculata. 



Ephemera guttulata, Pictet, Hist. Nat. Neur. Eph. 135, pi. 8, f. 4. 

 Switzerland. 



5. EPHEMERA SIMULANS. 



Picea ; setce pubescentes, corpore longiores; pedes fulvi, antice 

 obscuriores ; alee subcinerece, anticce fusco maculates et sub- 

 fasciata, venis nebulosis. 



