84 FAUNA HAWAIIENSIS 



Post-clypeus and the front of the head along the inner margins of the eyes, 

 somewhat shining. Eyes in the Z widely separated, the space between them greater 

 than their combined width. Antennae with short pubescence. Wings subhyaline, 

 anterior pair usually evidently clouded, but not deeply. Their markings are very 

 faint and consist of five fuscous spots along, but not touching, the apical margin, and 

 two others placed in a line with the second of the series, at equal distances apart 

 towards the base of the wing. There is often also a spot adjoining the pterostigma, 

 one on the cubitus about the middle, and another in the angle at the meeting of the 

 anal and dorsal nervures, the latter sometimes forming, with infuscations placed inwardly 

 to it, a very faint transverse band. The pterostigma varies in colour from being 

 entirely pale to a dark brown colour, its apical margin is long. There is a distinct 

 but narrow space between the inner branch of the cubitus and the vertex of the 

 area postica. The nervuration is nearly entirely dark in both pairs of wings. 



Expanse circa 9 mm. 



Hab. Haleakala, Maui (5000 ft.). 



(2) Elipsocus inconstans, sp. nov. 



This species varies greatly in size and in the wing-markings. In strongly marked 

 examples nearly one-half of the anterior wings is fuscous from the base ; there is then 

 a transverse hyaline or subhyaline fascia, and the apical portion of the wing is strongly 

 variegate with fuscous, enclosing hyaline spots. In other examples the wings are but 

 little infuscate on the basal portion, and the other markings may be disconnected and 

 form only detached spots, in which case the species bears a considerable resemblance 

 to E. montanus, but the markings are never so faint as in that species, and the area 

 postica is always, at least partly, infuscate. It may further be at once distinguished 

 from the preceding species by the entirely dull surface of the post-clypeus, and of the 

 front of the head, which is more depressed transversely. 



The area postica is sometimes free, with a distinct space between it and the inner 

 branch of the cubitus, but sometimes its vertex touches (or is connected by an 

 excessively short transverse nervule with) that branch. In the latter case a closed 

 discoidal area is formed and the examples have no longer the nervuration of the genus. 

 This variation is exhibited by examples of the most different superficial appearance, 

 as well as in those of similar general aspect, and the nervuration on the two sides of the 

 same insect may be markedly different, so that it is evidently in a very unstable 

 condition. Examples from the most widely separated islands of the group show 

 analogous variation. 



