PEBLIDES. 161 



t>6. PERLA DEBILIS. 



Parva ; prothorax capite angustior ; vence pallidissimce vix dis- 

 tinctce. 



Perla debilis, Pictet, Hist. Nat. Neur. Perl. 255, 44, pi. 26, f. 4. 

 Brazil. 



67. PERLA LUTEOLA. 



Fulva ; caput et prothorax angusta, colore similia. 



Perla luteola, Burm. Handb. Ent. ii. 881, 13. Pictet, Hist, Nat. 

 Neur. Perl. 257, 45, pi. 26, f. 57. 



Java. 



68. PERLA DUVAUCELII. 



Fusca ; caput et prothorax lata, colore similia. 

 Perla Duvaucelii, Pictet, Hist. Nat. Neur. Perl. 258, 46, pi. 27, f. 



1,2. 

 East Indies. 



Sub-group 6. 



Species parvae, maculis rufescentibus et nigris. 

 Species of small size : body with reddish and black spots. 



69. PERLA PICTA. 



Perla picta, Pictet, Hist. Nat. Neur. Perl. 261, 47, pi. 27, f. 38. 

 a c. New York. Presented by the Entomological Club. 



Sub-group 7. 

 Species parvae. Caput et prothorax nigra. Alae nigro-fuscae. 



Species of small size : head and prothorax black : wings very 

 deep brown. 



P3 



