PERLIDES. 149 



Sect. 2. 

 Prothorax nigricans. Alee obscure fuscae. 



Subsect. 1. 

 Alae semihyalinsc, venis robustis. Abdomen fusco vavium. 



25. PERLA CEPHALOTES. 



Prothorax parvus, capite angustiw. 



Perla cephalotes, Curt. Brit. Ent. iv. pi. 100. Steph. III. Brit. Ent. 



Hand. \\. 136,2. Newm. Mag. Nat. Hist. iii. 36. Picr.et, 



Hist. Nat. Neur. Perl. 196, 16, pi. 14, 15. 

 Perla bipunctata, Rcemer, Gen. pi. 24, f. 8. Sulzer, Abyek. 



Geschichte, pi. 24, f. 8. Burm. Handb. Ent. ii. 881, 15. 



a. ? From Mr. Children's collection. 



26. PERLA MARGIN ATA. 



Magna ; caput et prothorax fusco varia ; caput obscure fuscum, 

 macula nigra non bene determinate ; prothorax maynus^ capi- 

 tis latitudine ; vence fusca ; abdomen fulvum,fusco-obscurum ; 

 setcB caudales alis occulta. 



Perla marginata, Muraldt, Ephem. Nat. Cur. Dec. 2, An. 2, 1683, 

 191, f. 1619. Fabr. Ent. Syst. ii. 73, 7. Hummel, Essais 

 Ent. 2. Pictet, Ann. Sci. Nat. xxviii. pi. 5, f. 13. Hist. 

 Nat. Neur. Perl. 200, 17, pi. 16, f. 14; pi. 17, f. 1, 2. 

 Steph. 111. Brit. Ent. Mand. vi. 135, 1. Newm. Mag. Nat. 

 Hist. iii. 35. Zett. Ins. Lapp. 1057, 1. Burm. Handb. Ent. 

 ii. 880, 11. 



Perla bicaudata, Sulzer ', Ins. pi. 17, f. 104. 



Perla maxima, Scopoli, Ent. Cam. 269, 705. 



Perla grandis, Ramb. Hist. Nat. Ins. Neur. 454, 9. 



Semblis marginata, Panz. Faun. Ins. Germ. Ixxi. 3. 



Phryganea marginata, Turt. Syst. Nat. iii. 395. 



a. Dartmoor. From Dr. Leach's collection. 



b. Kheinwald. Presented by the Entomological Club. 



c. ? 



O 3 



