447 



color against the orange venter. Antennae slender, about i% times as 

 long as width of head. 



Thorax narrow, scarcely arched, not hairy. Legs rather small, slen- 

 der ; forewings hyaline, clear, radius short, first marginal cell a little 

 larger than second, veins not setose. Male genitalia small ; forceps slen- 

 der, acuminate, subacute, nearly or quite as long as anal valve. Anal 

 valve straight on anterior margin but convex on posterior margin, 

 broadest sub-basally. Female genital segment nearly as long as abdo- 

 men, dorsal valve longer than ventral, both acute. 



Distribution: — Island of Hawaii — Niulii, May 19-2-i, 1017 

 (O. H. Swezey), 44 specimens of both sexes on foliage of ohia 

 lehua (Metrosideros sp.). Some of these were bred from 

 nymjihs living free on the surface of the leaves. Other 

 related species make galls on these same leaves. Kohala ]\Ionn- 

 tains (Swezey), May 24, 1917, on ohia lehua; jMt. Kilauea, 

 January 1, 1917 (W. M. Giifard). Island of Lanai — several 

 localities at elevation of 2500 to 3000 ft., January, 1917 

 (Giffard). 



Kuiraijama minuia n. sp. 



Length of body 0.8 to i.i mm.; length of forewing i.6 mm. Gen- 

 eral color pale lemon yellow to orange ; eyes brown or black ; hind 

 femora lemon yellow in dark forms as well as light ; antennae brown 

 except basal one-fourth pale. 



Very similar to K. nigricapita, from which it appears to have been 

 derived, but differing in the following respects : Body uniformly smaller 

 in both sexes ; color nearly uniform over entire body ; antennae scarcely 

 longer than width of head. Male genitalia smaller ; forceps shorter and 

 more slender. 



Island of Hawaii — Mt. Kilauea, June 27, 1917 (O. H. 

 SAvezey), bred from free-living nymphs on surface of leaves 

 of ohia lehua. 



Kuiraijama gracilis n. sp. 



Length of body, male i.o mm.; female 1.7 mm.; length of forewing. 

 male 1.3, female 1.9. General color black to dark brown ; tibiae and 

 sometimes basal half of antennae a lighter shade of brown. Body 

 robust, small. 



Head deflexed, not quite as broad as mesothorax ; vertex reticulately 

 marked, a little more than half as long as broad, with a shallow, broad 

 foveal depression on each side of median suture. Genae swollen sub- 

 spherically beneath antennal bases, with several long hairs. Eyes large. 

 Antennae about as long as width of head, or a little longer, slender. 



