82 FAUNA HAWAIIENSIS 



(12) Psoctis heterogairdas, sp. nov. 



General appearance very like that of the two preceding species. Thorax almost 

 entirely pale. Nervuration almost entirely of a pale yellow colour, the apical furcations 

 of the nervures being all pale. There is an evident, but not deep, infuscation along 

 the apical margin of the anterior wings, which extends also on to the dorsal margin and 

 thence inwardly to the pterostigma, thereby enclosing a clearer space. The eyes of 

 the t are evidently smaller, and more widely separated, than those of the preceding 

 species. The pubescence of the antennae is subdecumbent and inconspicuous. The ? 

 is micropterous, and robust in life, but distorts so in drying that its characters cannot 

 be satisfactorily determined from pinned specimens. 



Expanse 8 — 8"5 mm. 



Hab. Mountains of Oahu. 



(13) Psoctis vtonticola, sp. nov. 



Closely allied to P. heterogamias. The apical margin of the anterior wings has an 

 infuscate band as in that species, but it is rather more definite, narrower, and less 

 diffuse. Of the furcations of the inner branches of the radius and cubitus, which 

 terminate in the apical margin of the wing, those of the latter are all dark ; of those 

 of the radius the outer is yellow at the extreme base, the inner for fully half its length, 

 the apical half dark. The eyes in the $ are not very large, the width of both together 

 being subequal to the distance between their inner margins. The pubescence of the 

 antennae is inconspicuous and subdecumbent. In the $ the eyes are smaller and more 

 remote, and the pubescence of the antennae extremely short and inconspicuous. 



Expanse 8*5 — 9 mm, 



Hab. Mountains of Kauai (4000 ft.). 



(14) Psociis vittipennis, sp. nov. 



Extremely like the preceding in general appearance. The single ^ that I have 

 seen has the radius in the anterior wings dark, but it is pale in the females, as in 

 all the allied species, and probably would often be so in the ^. Superficially the 

 present species may be distinguished as follows : the apical margin of the wing has 

 a darker border, which is very distinct and definite, and the inner apical branch of the 

 radius is pale for a shorter distance, the yellow part not extending so far as the apical 



