88 NEUROPTERA OP NORTH AMERICA. 



rior appendages broad, excavated within, with a pale tubercle be- 

 neath ; the inferior ones pale, hardly longer, acute ; or ( 9 ) dorsal 

 bands of the segments, fusco-aeneous, narrower, dilated before the 

 apex; pterostigina obscure, that of the males black; fourteen post- 

 cubital cross-nervules. 



Length 37 42 millim. Alar expanse 44 50 millira. 



Hob. Maryland (Uhler); Louisiana (Schaum) ; Florida (Osten 

 Sacken; Norton). 



28. A. civile ! 



Agrion civile Hagen! 



Black-brassy, varied with blue (^), or green (9); head and 

 thorax villous; head in front blue, occiput each side with an elon- 

 gated blue spot ; posterior margin of the prothorax rounded, en- 

 tire; dorsum of the thorax nigro-aeneous, each side with a broad 

 blue stripe (J 1 ), or green (9); sides blue in both sexes; beneath 

 pruinose ; feet pale, femora and tibiae with an imperfect, external 

 black line; abdomen blue ( c ), segment 1 with a small basal spot, 

 2 with an orbicular apical one, 3 5 with an acute apical band, 

 brassy-black; 6 7 brassy-black, blue at base; 8 9 blue; 10 

 brassy-black, the margin broadly excised ; superior appendages 

 black, long, divaricated, bifld, with a pale oval tubercle set between; 

 inferior appendages short, pale, unguiculated ; or (9) blue, a dor- 

 sal large, lanceolated spot, dilated before the apex of the segments 

 and not attaining the base upon segments 4 7, nigro-aeneous ; 

 margin of the tenth segment cleft; appendages short, thick, lurid; 

 ventral spine of the eighth segment acute ; wings hyaline, ptero- 

 stigmarhomboidal, exteriorly rounded, black (J 1 ), or luteous (9); 

 eleven postcubital cross-nervules. 



Length 32 35 millim. Alar expanse 37 millim. 



Hob. New York; Maryland (Uhler); Washington (Osten Sack- 

 en); Texas (Friedrich); Pecos River; Matamoras, Mexico. 



The colors of the living insect were made known to me by Baron 

 Osten Sacken. 



29. A. praevarum! 



Agrion praevarum Hagen ! 



Black-brassy, varied with blue (J*), or green (9); head and 

 thorax villous; very closely allied to the preceding species; differs 

 in having the posterior margin of the prothorax each side excised; 



