AGRION. 95 



fuscous point ; the process upon the thorax, near each side, lami- 

 nated, oblong, short, rounded; thorax pale green, a dorsal, fuscous, 

 middle line; feet pale green, the femora sublineated with fuscous; 

 abdomen pale green, segments 3 7 each side, with a lateral fus- 

 cous streak; appendages short, pale; the wings hyaline, ptero- 

 stigma rhomboidal, black (J 1 ), or luteous (?). Fifteen postcubi- 

 tal cross-nervules. 



Length 43 45 millim. Alar expanse 50 56 millim. 



Hal. Pecos River, Western Texas, July (Capt. Pope). 



42. A. lugens! 



Agrion luyens Hagen ! 



Luteous ; head above with an arcuated, angulose line, and a 

 postoccipital fascia blackish-brown ; posterior margin of the pro- 

 thorax subrotund, each side with an arcuated black spot ; process 

 of the thorax near each side, laminated, small, narrow, curved out- 

 wards ; thorax luteous, a dorsal middle streak and two narrow 

 stripes each side, fuscous ; sides luteous, above with a broadly 

 divided stripe, upon the middle at the wings an abrupt streak, and 

 a line beneath black ; feet luteous, femora exteriorly and tiba3 

 interiorly subfuscous; abdomen thick, luteous, a broad stripe each 

 side, confluent together at the apices of the segments, blackish- 

 brown, the last segment cleft ; appendages short, luteous ; wings 

 hyaline, pterostigma larger, rhomboidal, fuscous, luteous in the 

 middle; sixteen postcubital cross-nervules. (9.) 



Length 50 millim. Alar expanse 67 millim. 



Hob. Mexico (Muhlenpford; Berlin Museum). 



It belongs to the genus HYPONEURA Selys, which is distin- 

 guished by the postcostal space being multi-areolate. 







43. A. lacrimans ! 



Agrion lacrimans Hagen 1 



Luteous ; head luteous, above with spots in the middle, and a 

 postoccipital streak black ; posterior margin of the prothorax 

 short, broadly bi-emarginated, and with a geminate black spot ; 

 laminated process near each side of the thorax broadened at the 

 apex and curved inwards ; dorsura of the thorax luteous, a black 

 stripe on the middle ; sides luteous, a humeral line dilated ante- 

 riorly, and a middle line black ; feet luteous, exteriorly and tarsi 

 brownish-black ; abdomen luteous, a broad, black stripe each side, 



