65 



11. rubritinctus (Blackburn). 



Nobis rubritinctus Blackburn. 1888, op. cit., 351. 



This species is still unknown to me, as I do not think Black- 

 burn would have overlooked the head-spines. It may be that 

 it forms, by the possession of thickened antennae, a link between 

 the typical subrufus-forms and the subgenus Milu. 



12. keraspJwros (Kirkaldy). 



Redtivioliis nibritinctus Kirkaldy, 1902, Faun. Haw., Ill, 157, 



PI- 5^ f- 33- 



Milu kcrasphoron Kirkaldy, 1907, Canad. Ent., XXXIX, 248. 



M. kerasphoros Kirkaldy. 1908, P. Haw. E. S. I.. 195. 



This species seems to be restricted to Oahu, but is found all 

 over its forest region, on Ohia lehua {Nani polymorpha) and 

 Koa {Acacia koa). The form with red and yellow tegmina. 

 sharply contrasted, is typical: for that with purplish tegmina, 

 I have proposed the varietal name purpurea (P. Haw. E. S. L). 



I erected for this, the genus Milu, but I now agree with Renter 

 that it is not worthy of more than subgeneric rank. (Reuter, 

 1908, Mem. Soc. Ent. Belg., XV, 109). 



The nymphs display the thickened antennae, though less (and more 

 regularly) so, but the head-spines are not apparent. 



13. ncsiotes sp. nov. 



This has the general appearance of a short-winged blackburni, but 

 the female abdomen is more like that of subrufus. It is larger and 

 darker than blackburni. 



Sordid brownish testaceous, a black line from clypeus to posterior 

 angle of scutellum, etc. Tegmina yellowish-brown, irregularly suffus- 

 ed with fuscous, membrane much as in blackburni (short-winged 

 form). Abdomen pitchy black; tergo-p'leurites obscurely spotted with 

 yellow-brown. In brachypterous blackburni the wing-veuation is near- 

 ly the same as that of the normal form, except that it is shortened, 

 but in nesiotes, the wing-venation is much reduced, (PI. I, f. 12). 



Length, ^Vz mill. 



Hab. Hawaiian Isles (? locality). 



I have only fragments of a single female, and have described 

 it only because it appears to me not to be conspecific with any 

 other form ; and to be worthy of record on account of the wing 

 reduction. 



14. lusciosiis (White). 



Nobis? lusciosm F. B. White, 1877, A. M. N. H., (4), XX, 

 112. 



