8o FAUNA HAWAIIENSIS 



The Z is readily distinguished by the antennae, the pubescence of the third joint 

 being less long and conspicuous ; nor does it stand out suberect from the surface, but 

 on both upper and lower surfaces is strongly inclined in the direction of the apex. The 

 eyes are large and in a front view of the head the width of one of them is much greater 

 than the distance from its inner margin to the nearest ocellus. 



Expanse to 9 mm., generally less. 



Hab. Mountains of Kauai (4000 ft.). Examples from Haleakala (5000 ft.) 

 appear identical with those from Kauai, but of slightly greater average size. 



(7) Psocus molokaiensis, sp. nov. 



A small species, the dark markings of the anterior wings as follows : the apex 

 of the pterostigma, and a spot adjoining it, the costal margin to the pterostigma 

 (generally), more or less infuscation along the cubitus, a spot close to the base of 

 its inner branch, and another on the transversely-directed portion of the same, a band 

 or line along the dorsal margin from the base to the middle of the wing. These 

 markings vary, but are sufficient to distinguish the species, from the fact that their 

 general tendency is longitudinal and not transverse as in the other species. In the $ 

 the eyes are moderately large, but the space between them is rather wide, being 

 about equal to the width of the two taken together. The pubescence of the antennae 

 is short and inconspicuous and not erect. Thorax in both sexes with the surface dull. 



Expanse to about 8 mm. 



Hab. Mountains of Molokai (3000 ft.). On Cyathodes. 



(8) Psocus distinguendus, sp. nov. 



Wing-markings and general appearance as in P. haleakalae. The transverse 

 fascia is narrow, and sometimes interrupted, and, as in the other species, the markings 

 are generally rather more developed in the % than in the ^. 



P. disiinguendus may be known from any of the preceding species by the polished 

 surface of the mesothorax, at least in front both of the median and lateral lobes. 



The hairs on the third joint of the antennae of the ^ are shorter than those of 

 P. haleakalae. Its eyes are very large, the space (where least) between their inner 

 margins being hardly wider than the width of one of these organs. In the $ the eyes 

 are comparatively small, and widely separated. 



Expanse min. 8, max. 1 1 mm. 



Hab. Molokai (3000 ft.) ; Lanai, Maui, Hawaii. 



