94 NEUROPTERA OP NORTH AMERICA. 



rior branch conical, recurved ; tenth segment of the female almost 

 entirely cleft; the appendages short, luteous ; no ventral spine; 

 wings hyaline, pterostigma rhomboidal, fuscous; fourteen postcu- 

 bital cross nervules. 



Length 36 millim. Alar expanse 44 millim. 



Hah. Tampico, Mexico (Saussure). 



40. A. sedulum! 

 Agrion sedulum Hagen 1 



Black ; head blue above ; posterior margin of the prothorax 

 sub-rect ; dorsum of the thorax black, each side a blue stripe ; 

 sides blue, superiorly with a black fascia, which is biserrated below, 

 and a black line upon the middle ; feet pale, femora exteriorly and 

 the tibije within black ; abdomen black, segments 2 to T with a 

 dorsal blue spot at base, the following ones entirely blue ; append- 

 ages black, short, superior ones cylindrical, straight, obtuse, with 

 an ante-apical tooth beneath ; inferior ones longer, bifid, the 

 branches divaricated, recurved beneath ; margin of the tenth seg- 

 ment elevated in the middle, excised ; wings hyaline, pterostigma 

 rhomboidal, brownish-black. J". Thirteen postcubital cross-ner- 

 Tules. 



Length 34 millim. Alar expanse 38 millim. 



Hah. Berkeley Springs, Virginia (Osten Sacken) ; Pecos River, 

 Western Texas (Capt. Pope). 



The colors of the living insect were communicated to me by 

 Baron Osteu Sacken. 



41. A. moestum ! 



Agrion moestum Hagen 1 



Fuscous ; head blue in front ; posterior margin of the prothorax 

 subrect ; dorsum of the thorax fuscous, each side with a broad 

 blue stripe (?) ; sides brassy-fuscous, with an obscure blue middle 

 stripe (?); feet luteous, femora exteriorly and tibisB interiorly 

 brassy-fuscous ; abdomen brassy-fuscous, segments 3 — 7 with a 

 basal blue lunule ; segment 10 margin excised in the middle; 

 appendages extremely short, the superior ones obtuse, incurved at 

 the apex, the inferior ones broad, truncated at the apex, hardly 

 sinuated. 



$ Pale green ; head with a post-occipital fuscous streak ; pos- 

 terior margin of the prothorax subrect, each side with a brassy- 



