186 



base, a small irregular group of spines occupy a medio-ventral posi- 

 tion on right side and a few spines near apex on the left side ex- 

 tending in an imperfect line to near middle; the number of spines 

 on the sides are variable. Figure 30. 



pulla var. n. The Kilauea, Hawaii, specimens are darker in 

 color, especially the mesonotum of the males, which is sometimes 

 nearly black, the anal spines stouter and shorter, the dorsal row of 

 spines on the aedeagus is represented by a few irregular spines, the 

 spines on the left side form a more complete row along the ventral 

 surface. It is distinct and constant enough for a varietal name. 



3. N. pseudoruhescens sp, n. 



^ Macropterous. Light brown, lighter over frons and on carinae, 

 abdomen dark brown or nearly black. Tegmina hyaline, veins dark 

 brown with small granules of same color bearing black hairs, yellow- 

 ish over basal portion of costal, radial and median basal cells and 

 over clavus, apical portion of clavus and over hind margin to apex 

 fuscous. Anal spines long and straight; styles short and broad, of 

 the same type as Aloha ipomoeae; aedeagus very similar to that of 

 N. anceps, but the line of spines on dorsum not turning on to right 

 side and the spines on ventral side not so distinct and forming two 

 or three uneven rows or a cluster (not shown in figure). 



Length 2.8 mm. ; tegmen 8.2 mm. 



9 Lighter in color, especially on the abdomen, and inclining to 

 greenish. 



Length 3 mm. ; tegmen 3.5 mm. 



Hab. On the phyllodia of Acacia koa; at present only 

 known from the small koa reservation at "29 Miles," Olaa, 

 Hawaii. (Giffard and Mnir, Jannary, 1915 ; Giffard, 1916, 

 Jannary.) 



In coloration this species is very similar to ruhescens^ bnt 

 the fnscons hind margin from clavns to apex is very distinct- 

 ive and the short, broad styles make the male easy to recog- 

 nize; the genitalia come nearer to anceps, which is very differ- 

 ently colored, is brachypterous and is only known from Glen- 

 wood where there is no koa. 



PI. 2, fig. 34. 



4. N. Ixoae-phyllodU sp. n. 



^ Macropterous. Brown, a few light dots on face, abdomen 

 with fuscous markings. Tegmina hyaline, yellowish, veins con- 

 colorous with membrane with distinct brown granulations. 



Pygophor and styles as in koae: anal spines long, thin, touching 

 at base and a little beyond, then diverging and pointing basally; 

 aedeagus with a row of spines on ventral side, another on dorsal 

 near apex, continuing across right side to a ventral point beyond 



