Rev. T. Blackburn on Haniaiian Neuroptcra. 415 



A(/7'ion? oahuense, sp. nov. 



Another ally of A. calliphi/a, McLachl. Pterostlgma 

 lozenge-shaped, surraounthig two (on one side in mj specimen 

 it surmounts more than two) cellules, blackish. Quadrilateral 

 elongate, with its superior edge one third the length of tlie 

 lower in the anterior wings, nearly a half in the posterior. 

 About twenty postcubital nervules in anterior wings ; about 

 fourteen in the posterior. Three cellules between quadrilateral 

 and nodus. 



Head and tliorax black. Hind body bright red. Labium, 

 labrura, and extreme hind margin of head yellow. Posterior 

 margin (which is rounded) of prothorax and some spots on the 

 disk yellow. Thorax with a narrow dorsal elevation, an 

 antehumeral band, and the lower portion of the sides, yellow. 

 Pectus yellow. Legs yellow, with the spines black. Hind 

 body bright red, apical sixth of third and fourth and nearly 

 the whole of the fifth to eighth segments pitchy. An elongate 

 dorsal impression near the apex of the third to fiftli segments ; 

 ninth and tenth segments red. 



J . Tenth dorsal segment of hind body very strongly ele- 

 vated from the base backwards, so that (viewed from the side) 

 it appears much higher at the apex than the base, abruptly 

 truncate behind, the hind margin strongly pubescent. The 

 superior appendages are pear-shaped in outline, but concave ; 

 they are contiguous at the base, with the broad ends in con- 

 tact, and are laid flat along the truncate hind surface of the 

 tenth segment, so that the narrowed ends point out sideways, 

 with their concavities facing backwards ; the narrowed ends 

 are somewhat turned upwards and backward. The upper 

 half of these appendages is black, the lower half red. The 

 lower appendages are small, conical, red, with black tips. 



Female unknown. 



Length of hind body, (J 40 millim. ; length of posterior 

 wing 22 millim. ; expanse 50 millim. 



This species is remarkable for the length of its hind body, 

 which is so great that the total length of the insect is scarcely 

 less than the expanse of the wings. 



A single specimen occurred on Oahu, but the exact parti- 

 culars of its capture have been lost. 



Agrion ? nigro-hamatum, sp. nov. 



Another of the A. calliphya group. Pterostigma reddish 

 brown, surmounting scarcely more than one cellule. Quadri- 

 lateral with its superior edge not quite (in the anterior wings) , 

 just about (in the posterior), half tlie length of the lower. 



