160 NEUROPTERA OF NORTH AMERICA. 



dorsal stripe, and the sides obsoletely yellow ; wings hyaline, nar- 

 row ; pterostigma long, black; membranule blackish-gray. (Male.) 



Fifteen antecubitals ; ten postcubitals ; two discoidal areolets. 



Length 40 millira. Alar expanse 69 millim. Pterostigma 4 

 millini. 



Hab. Cordova (Saussure). 



It is most like Lihellula angustipennis, but the posterior lobe of 

 the prothorax is shorter, not rounded, and the external hamule is 

 narrower, divided. 



Subgenus Ortliemis Hagen. 



The first sector of the triangle straight ; the abdomen broad, 

 depressed; female having the sides of the eighth segment dilated; 

 pterostigma large. 



22. O. discolor ! 



Lihellula discolor Burm. ! Handb. II, 856, 51. — Lihellula macrostigma 

 Rambur ! Neuropt. 57, 54. Selys ! Poey, Ins. Cuba, 447. — Lihellula 

 ferruginra Fab. Syst. Entom. 423, 19. Sp. Ins. I, 523, 25. (Not of 

 Entom. Systemat.) 



Rufous or blue, pruinose (adnit male), labium yellowish, fuscous 

 in the middle ; thorax with the dorsal sulcus yellow, each side with 

 four yellow lines ; feet rufous, the femora in part paler ; abdomen 

 rufous, a dorsal stripe, and each side at base yellowish ; wings hya- 

 line, the apex sometimes infuscated ; pterostigma large, fuscous ; 

 membranule black. 



Var. Thorax and abdomen with no yellow stripes. 



16 — 19 antecubitals ; 13 — 15 postcubitals ; three discoidal are- 

 olets. 



Length 48 — 55 millim. Alar expanse TO — 95 millim. Ptero- 

 stigma 1 millira. 



Ilab. Western Texas ; Matamoras, Tampico, Mexico ; Cuba ; 

 Martinique ; San Domingo ; Guadaloupe ; St. Thomas ; Porto 

 Rico; St. Croix; Jamaica; Porto Cabello, Venezuela; Surinam, 

 Guiana; Chili; Equador; Guayaquil; Rio, Minas Geraes, Bahia, 

 Pernambuco, Brazil. A most common species. 



LEPTHEMIS Hagen. 

 Eyes very slightly connected ; posterior lobe of the prothorax 

 large, bilobed ; abdomen long, almost longer than the wings, nar- 



