77 



The following is a preliminary arrangement of the Hawaiian 



forms :(3). 



1(2). Tegmina shorr" and broad, costal margin thickened and 

 arched at the base; apical and margin of wings fuliginous. 

 LANAl; HAWAIT, (Kona). F. H. 120 and 122, PI. 4, f. 6... 

 4. hevaheva Kirkaldy. 



2(1). Tegmina not specially thickened, nor arched at the base; 



more elongate, at least in the larger species. 

 3(8). Expanse of tegmina more than 17% mill. 



4(5). Mesonotum brownish testaceous; tegmina immaculate 

 (male), somewhat maculate (female); wings apically not 



fuliginous. KAUAI, F. H., 120, PI. 4, f. 4 



1. tamehar-ieha Kirlfaldy. 



5(4). Mesonotum black; wings apically fuliginous. 

 6(7). Tegmina hyaline, immaculate (male), a narrow median 

 transverse stripe, often faint, (female). OAHU. (Tantalus); 

 MOLOKAI, 4000 ft., (a fragment); MAUI, (Haleakala); HA- 

 WAII, (Kilauea and Olaa). F. H., 120 and 121, PI. 4, f. 5.. 



_ 2. kanakanus Kirkaldy. 



7(6). Clavus, inner 2-5 of corium, and apical % of tegmina, suf- 

 fused with fuliginous. Otherwise as in kanakanus. MO- 

 LOKAI, (4000 ft.) 3. kahavalu, sp. nov. 



S(3). Expense of tegmina less than YIV^ mill. 

 9(36). Males. 



10(29). Tegmina immaculate, except the veins. 



11(14). Tegmina, with at least one-third suffused with fuliginous 

 or yellowish-fuliginous. 



12(13). Basal and apical thirds of the tegmina fuliginous, middle 

 third hyaline. [Rarely the tegimna are partly hyaline api- 

 cally, cf. F. H., PI. 4, f. 8.] OAHU, (Koolau and Waianae 

 ranges); MOLOKAl, (4000 ft); HAWAII, (Olaa and Kohala 

 Mountains) 5. tarai Kirkaldy. 



i3(12). Tegmina entirely dark fuliginous (sometimes a very little 

 dilute). MOLOKAI, (4000 ft.); MAUI, (Haleakala, 5000 ft.). 

 F. H., 128, PI. 4, f. 9 6. moral Kirkaldy. 



14(11). Tegmina only dark (if at all) on veins, though sometimes 

 partly tinged with yellowish. 



15(18). Mesonotum pale castaneous; veins on basal two-thirds of 

 tegmina pale. 



13(17). Veins on basal ■•{; minutely, but distinctly granulated witli 

 brown. Differs from koanoa by th? longer and narrower teg- 

 mina and pale mesonotum. Length, 6 mill. OAHU, (Koo- 

 lau ranges, all over); HAWAII, (Kilauea, on tree-ferns; 

 ferns ; and Freycinetia) 7. kaonohi, sp. nov. 



17(16). Veins on basal -/. not, or very obsolete, granulated; other- 

 wise like kaonohi. HAWAII, (Naalehu, on fern, O. H. S.) 

 8. filicicola, sp. nov. 



18(15). Mesonotum black. [In some examples, the keels are dark 

 castaneous]. 



19(24). Veins on basal %, black, or largely so. 



20(23). Veins partly pale. 



21(22). Tegmina shorter and broader. Length, 6 mill. OAHU, (Ko- 

 nahuanui, O. H. S.) , 9. procellaris, sp. nov. 



(3). "P. H."=:Fau'na Hawaiiensis, III. Tlie "length" is taken from 

 apex of vertex to apex of closed tegmina. 



