512 



apex of subcostal cell and a larger one at apex of clavus from which 

 it spreads out towards the middle and base, granules minute, sparse, 

 bearing black macrotrichia. 



Female. Brachypterous ; length 3 mm.; tegmen 2.1 mm.; hind femora 

 not reaching to apex of abdomen. Much lighter in color than the 

 male; light brown or yellow, dark between carinae of face, genae, 

 clypeus, last joint of tarsi and hind femora. Tegmina hyaline, a dark 

 mark at apex of subcostal cell and apex of clavus. 



Ukulele pipe line, Haleakala, Maui, 5000 feet elevation, on 

 Astelia veratroides (Timbcrlake, July, 1919). The nymphs are 

 yellow, brown on face, clypeus, wing pads, hind femora, and 

 apical tarsi. 



Described from seven males, three females, and three 

 nymphs. This small series shows some color variation in the 

 usual direction of the reduction of the dark areas. This species 

 comes near to both /. pele (Kirk.) and /. raillardicola Muir. 

 From the former it can be easily separated by the shape of 

 the base of the aedeagiis and the spines along the right side ; 

 from the latter it is easily separated by the long anal spines. 

 Figs. 9a and 5. 



Ilburnia amamau sp. n. Fig. 19, a. 



Male. Brachypterous ; length 2.9 mm. ; tegmen 2 mm. Vertex slightly 

 broader than long, apex slightly rounded, the two median carinae 

 projecting, base slightly before middle of eyes, length of face twice 

 the width, narrowest on basal half, median carina forking near base; 

 antennae reaching beyond base of clypeus, second joint 1.6 times the 

 length of first; hind femora reaching to apex of abdomen, first tarsus 

 slightly longer than other two together; tegmina reaching base of 

 pygofer. 



Opening of pygofer longer than wide, anal emargination shallow, 

 margins entire, a small projection from the medio-ventral edge; anal 

 spines large, acute, slightly curved, not contiguous at base ; genital 

 styles narrow, flat, produced on inner basal edge, apex truncate with 

 inner angle projecting; aedeagus flattened laterally, in lateral view 

 deep with a deep emargination in middle of ventral edge, base narrowed, 

 functional orifice near apex, three small spines on right near upper 

 angle and a cluster of them on ventral aspect near apex which continues 

 onto left side. 



Light brown, fuscous between carinae of face, genae and clypeus 

 and over carinae of thorax; darker over abdominal sternites and 

 lateral portion of tergites. Tegmina hyaline, light brown, veins slightly 

 darker, granules minute, sparse, bearing black macrotrichia. 



