518 



The shape of the pygofer is similar to that of 7. koehelei (Muir),* 

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

 two-thirds, apical third narrowed to pointed apex; aedeagus slightly 

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

 row of small, curved 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, Oahu, elevation about 2000 feet, taken on 

 Pritchar-dia sp. {Szite::ey, Aug-ust, 1920). As only a single 

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

 comes near to /. koehelei (Mttir). It is of interest as showing 

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

 (]\Iuir) can proceed to such a form as /. Iialia (Kirk.). 



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



PLATE VIII. 

 LIST OF FICxURES. 



1. Nesodryas haa, aedeagus, p. 509. 



2. Ilburnia waikamoiensis, aedeagus, p. 514. 



3. " loieliae, 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. Ilburnia pele, aedeagus; a, right style, p. 512. 



10. " dubautiae, aedeagus, 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. " alcu, aedeagus; a, right style, p. 513. 



1-5- " 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; b, right 



style with internal basal portion, p. 520. 

 1"- " neoraillardiae, left style, p. 517. 



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



1^- " amamau, full view of pygofer; a, aedeagus, p. 512. 



