NEUROPTERA JZ 



margins black, as well as two or three of the terminal segments, but the colour is very 

 variable. 



$ superior appendages red on the basal portion, curved inwards but not very 

 strongly, about equal in length to the loth segment, strongly and suddenly dilated on 

 more than their basal half. The black apex is armed inwardly with an extremely 

 minute tubercle ; the dilated portion bears on its apical margin a well-developed black 

 tooth, directed inwardly, and situated just above its inferior apical angle (when the 

 appendages are viewed inwardly). The lower appendages are short and bent inwards, 

 their apices forming a black spine. The apex of the loth segment is emarginate. 



Female superior appendages short, red or piceous, rounded at the apex, not very 

 acute. Valvules more or less pale, their appendages of the same colour or piceous. 

 (Plate V. figs. 2, II & II a.) 



Length of abdomen 40 — 47 mm. Wing post. 27 mm. Expanse 56 mm. 



Hab. Mountains of Lanai and high ridges of the W. Maui Mts. (4000 ft.). 



(16) Agrion molokaiense, sp. nov. 



Almost exactly like the preceding in general form and appearance and of the same 

 dimensions. Three males (one much mutilated) differ as follows. The basal part of 

 the clypeus is black, the post-ocular spots are somewhat smaller. The pterostigma is of 

 a dark brownish colour. The post-pterostigmatic cellules, especially in the posterior 

 wings, are very distinctly clouded. The third segment of the abdomen and the three 

 apical ones are nearly entirely red, the two basal are much suffused with black, the rest 

 black or blackish. It is probable that none of these distinctions would hold good in a 

 long series, but the species is easily known by the genitalia. 



Superior appendages in strict dorsal view, very little produced beyond the extremity 

 of the dilated portion : in lateral view the apex is obliquely truncate and each of these 

 angles is produced into a minute tooth or spine. The dilatation of the appendages is 

 very gradual and the spine at its inferior apical angle is evidently smaller than that of 

 the preceding species. 



A single $ which belongs to this species differs from the preceding, so far as I can 

 see, only in the smaller size of the post-ocular spots and the almost black basal two 

 segments of the abdomen. 



A single $, which is evidently somewhat immature, almost exactly resembles this ? 

 in colour, and is so different in colour to that sex as described above, as to make it 

 doubtful whether the species could be separated from the preceding without the exami- 

 nation of the appendages. 



Length of abdomen, &c. as in A. jtigorum. 



Hab. Mountains of Molokai, above 4000 ft., but one taken at about 1000 ft. less 

 elevation. 



10 — 2 



