518 



The shape of the pygofer is simihir to that of I. l~oeJ)elei (Muir),* 

 anal spines small, bases wide apart ; genital styles flat, broadest on basal 

 two-thirds, apical third narrowed to jiointed apex; aedeagiis slightly 

 flattened laterally, curved, orifice large situated on dorso-apical half, a 

 row of small, cur^-ed spines on ventral aspect one-third from apex bend- 

 ing to left side, a few scattered spines on sides of apical half; armature 

 on diaphragm consisting of two small, curved processes flattened laterally. 



Castle trail, Oahii, elevation about 2000 feet, taken on 

 Pritchardia sp. (Szivz'cy. August, 1920). As only a single 

 specimen was taken this may not be its food plant. The species 

 comes near to /. kochclci (Muir). It is of interest as showing 

 the line by which a more normal type, such as /. neowailnpensis 

 (Muir) can proceed to such a form as /. Jialia (Kirk.). 



*Proc. Haw. Ent. Soc, III, 4 (1917). PI. V, fig. 10. 



PLATE VIII. 

 LIST OF FIGURES. 



1. Nesodryas haa, aedeagus, p. 509. 



2. llburnia waikamoiensis, aedeagus, p. 514. 



3. " lobeliae, aedeagus; a, anal segment, p. 520. 



4. * * sulcata, aedeagus, p. 516. 



5. ' ' raillardicola, aedeagus, p. 512. 



6. " nesopele, aedeagus; a, right style, p. 511. . 



7. ' ' nigroceps, aedeagus, p. 511. 



8. Aloha myoporicola, aedeagus, p. 510. 



9. Ilburiiia pele, aedeagus; a, right style, p. 512. 



10. ' ' dubautiae, a»edeagus, p. 510. 



11. *' pipturi, aedeagus; a, right style, p. 514. 



12. " boehmeriae, aedeagus; a, right style, p. 514. 



13. ' ' geranii, aedeagus ; a, right style, p. 515. 



14. " a7i«, aedeagus; a, right style, p. 513. 



15. " gigantea, profile of pygofer and anal segment with aedeagus 



exserted, p. 517. 



16. ' ' olympica, aedeagus, anal segment and left style with con- 



necting structures; a, profile of pygofer; h, right 

 style with internal basal portion, p. 520. 



17. ' ' neoraillardiae, left style, p. 517. 



18. ' ' raillardiae, left style, p. 516. 



19. " amamau, full view of pygofer; a, aedeagus, p. 512. 



