J 72 FAUNA HAWAIIENSIS 



27. Posterior tarsi \ • (2^) brachytarsa. 



3_A (27) rara. 



B. Females. 



18. Forewings with discal spot broad, not lunate 19. 



„ „ narrow, lunate 21. 



ig. Discal spot roundish; expanse 33 mm. or less (12) idolias. 



„ trapezoidal, dilated beneath; expanse 40 mm. or more 20. 



20. Forewings narrower, ferruginous-tinged {22) trachyopis. 



„ less narrow, not ferruginous-tinged {23) macrosoma. 



21. Median shade much broader than other hues, distinct (g) hecataea. 



„ not or little broader, generally obsolete 22. 



22. Forewings with apical spot of pale suffusion 23. 



„ without such spot 24. 



23. Forewings with dorsal edge and terminal cilia clear pale yellowish {2^) artemidora. 



not pale {24) pachyspila. 



24. First and second lines dark-dotted 25. 



,, ,, not dark-dotted 28. 



25. Termen of forewings gently waved 26. 



„ „ moderately waved 27. 



26. Expanse 45 mm. or more {27) rara. 



„ 44 mm. or less {i j) paludicola. 



27. Lines and discal spot usually strongly marked (Kauai species) {21) nephelostkta. 



,, „ rather obscurely marked (Hawaii species) {26) brachytarsa. 



28. Head and thorax dark fuscous 29. 



„ „ brown, somewhat reddish-tinged {18) trisda. 



29. Forewings broader, lines obsolete {20) p/atycapna. 



„ less broad, lines distinct . {ig) capnopa. 



(i) Scotorythra syngonopa, sp. nov. 



^. 43 mm. Head and thorax light grey, patagia whitish towards tips. Antennae 

 white, faintly greyish-ringed, pectinations 10, laterally black-lined. Abdomen i^, grey, 

 segmental margins white, anal tuft ochreous-whitish. Legs grey, posterior tibiae 

 whitish-mixed, dilated, enclosing a whitish hair-pencil, posterior tarsi ^. Forewings 

 somewhat elongate-triangular, termen rather obliquely rounded, faintly waved, dorsum 

 more rounded than usual ; light ochreous-grey, finely strigulated with rather dark 

 fuscous ; costa with some irregularly strewn ochreous-white strigulae ; first, median, and 

 second lines forming cloudy darker fuscous shades, first faint, curved, median faint, 

 sinuate, towards dorsum more distinct and subconfluent with second, second posteriorly 

 tolerably well-defined and partially obscurely pale-edged, waved, moderately curved 

 outwards on upper f and inwards near dorsum ; discal spot very long-transverse, 

 cloudy, rather dark fuscous. Hindwings with termen waved ; colour and markings 



