40 FAUNA HAWAIIENSIS 



forming a distinct transverse dark line, the dorsal margin near the base is also dark, as 

 also spots on the costa, radius, and the cubital nervures. Posterior wings subhyaline, 

 with rather pale nervuration, the outer series of gradate nervules darker. 



Anterior and posterior wings very broad in proportion to their length, their apical 

 margins hardly perceptibly emarginate. In the former the radius gives off 5 sectors, 

 the 5th twice furcate before reaching the outer series of gradate nervules. 



No doubt some examples of this species will have 6 sectors to the radius. 



Expanse i6'5 mm. 



Differs from N. d^^epanoides and angustipennis , much as N. latipennis does from 

 N. hawaiiensis. 



Hab. Waianae Mts., Oahu (3000 ft.) ; i ?. 



(7) Nesomicromus belhilus, sp. nov. 



Black, or more or less brown, head and sometimes the prothorax with pale spots, 

 legs pale, front and middle tibiae with two distinct black rings. Antennae with the two 

 first joints black, the rest pale at their base, and dark at the apex. Anterior wings 

 $ whitish, subtransparent, iridescent, with a large dark irregular and broken blotch at 

 the base, and another more or less evident at the apex, bounded inwardly by the 

 suffused nervules of the outer gradate series. All the nervuration with alternating dark 

 and pale spaces, the dark ones on the radius very distinct. In the $ the anterior wings 

 are much suffused with ochreous-brown, a round spot between the upper parts of the 

 two gradate series being less suffused, but not very distinct. The posterior wings are 

 transparent and iridescent, infumate at the extreme base along the dorsal margin, and 

 their nervuration is to a large extent pale, becoming dark towards the apex. In the 

 ? these wings are more clouded, especially along the dorsal margins, and the nervuration 

 is on the whole darker. 



The anterior wings are simply rounded at their apices, the apical margin not at all 

 emarginate, but forming a continuous curve with the hind margin. There are 5 sectors 

 to the radius, sometimes 6, at least on one side. 



Abdomen $ with the terminal appendices yellow ; their apices very narrow and 

 somewhat produced, slightly turned upwards and inwards and subtuberculate. The 

 spines are long and very fine, their extremities curved upwards, but they do not extend 

 backwards so far as the apices of the appendices themselves. (Plate IV. fig. 8.) 



Expanse 16 — 17 mm. 



Hab. Haleakala, Maui (5000 ft.); very rare, 3 ^, i ? taken. 



