252 NORTHERN ZOOLOGY. 



ORDER NEUROPTERA. Linn. 



I. LIBELLULINA. Mac L. 



Family AGRIONID^. Agrionidans. 



CXLIII. Genus AGRION. Fab. 



(347) 1. Agrion Puella. Common Agrion. 



Agrion Puella. Fab. Ent. Syst. ii, 387, 2. Ced. Fn. Ingr. 186, 571. Steph. Illustr. Mandib. vi, 73, 5. Lam. An. sans 

 Vertebr. iv, 229, 2. Lat. Crust. Arachn. et Ins. ii, 241. Ramd. Verdaung. Ins. 147, 5, *. xv, f. 4. 



Libellula Puella. Linn. Syst. Nat. ii, 905, 21 ; Fn. Snec. 1471. Scop. Cam. 682. Schrank. Enum. 601. Vill. Ent. 

 iii, 13,26. 



Mouff. Ins. 68, fig. infer. Rai. iftsi. 7ns. 51, 15. Ros. Ins. ii, aquat. 2, <. x, /". 3, 4. Reaum. /7i,s. vi, t. xl. Sulz. 

 Tns. £. xvii, / 102. Geoff. Ins. ii, 224, 5. De Geer Ins. ii, 2, 60. H— s. Exp. t. xxix, /. 5, 6 ? 



Variety B. Trunk sea-green, above black with two sea-green longitudinal stripes : abdomen 

 black, sea-green at the base, inscribed with black : legs black above, underneath 

 sea-green or white ; the stigma of the wings is blackish with a transparent 

 margin. 

 C. Trunk black and white with two dorsal white longitudinal stripes ; legs black : 

 stigma of the wings black : abdomen mutilated. 



Both taken in Lat. 65°. 



II. PERLINA. Kirb. 

 Family PERLID^. 



CXLIV. Genus PERLA. Geoff. 



(348) 1. Perla bicaudata. Two-tailed Perla. 



Perla bicaudata. Lat. Hist. Nat. xiii, 49; Crust. Arachn. et Ins. ii, 258. Lam. An. sans Vertebr. iv, 191, 2. Steph. 



Illustr. Mandib. vi, 135, 3. 

 Perla fusca. Geoff. Ins. ii, 231, 1. 

 Phryganea bicaudata. Linn. Syst. Nat. ii, 908, 1 ; Fn. Suec. 1489. Schrank. Enum. 607. 



maxima. Scop. Cam. 705. 



Semblis bicaudata. Fabr. Ent. Syst. ii, 73, 8. Ced. Fn. Ingr. 414. 



Reaumar. 7ns. iii, t. xiii, /. 12 ? iv, t. xi, /. 9, 10. Wagn. Helvet. 227—229. Sulz. Ins. t. xvii, /. 6. 



Length of the body about 1\ lines. 



Several specimens taken in Lat. 68°. 



