544 FAUNA HAWAIIENSIS 



{22) Nysius oribasus, sp. nov. 



Elongate. Head black. Antennae, pronotum and scutellum piceous ; base and 

 apex of first three segments of antennae pale, as also angles and keel down scutellum, 

 and postero-lateral angles of pronotum. Labium, ambulacra, orifices and legs pale ; the 

 first and fourth segments of the labium, and the tibiae partly, fuscate ; femora thickly 

 spotted on the basal half, or so, with dark brown, coxae basally piceous. Tegmina 

 hyaline, strongly blotched with dark brown. Beneath blackish, abdomen in one 

 example a little pale in part. Second segment of antennae slightly longer than the 

 third, which is longer than the fourth. Pronotum coarsely punctured ; lateral margins 

 very slightly sinuate, not at all carinate ; laevigate areas blackish. 



Hab. Oahu, Waialua, Koolau range, 2000ft., Feb. (Perkins); Kaala, 1500 ft. 

 Jan. (Perkins). The Waialua specimen is the type. 



(23) Nysius insiclivagus, sp. nov. 



Sparsely yellowish pubescent. Head, sterna and pleura black, propleura partly 

 brownish piceous. Pronotum, scutellum, and tegmina brownish piceous ; laevigate 

 areas of pronotum rather darker ; scutellum partly darker, carina down the middle 

 yellow ; tegmina very closely mottled pallidly, veins paler, especially the forked median. 

 Beneath, the abdomen is piceous, becoming more palely ferruginous towards the apex. 

 Antennae, labium and legs pale ferruginous ; apex of first three segments of antennae 

 dark ; orifices pale. First segment of labium extends beyond the apical margin of the 

 prosternum. Second segment of antennae distinctly longer than the third, which is 

 subequal to the fourth. Lateral margins of pronotum scarcely sinuate, obsolescently 

 carinate. 



Hab. Hawaii, Hualalai, 8000 ft., Aug. (Perkins) ; Kilauea, 4000 ft. (Perkins) and 

 at the same locality on Nani polymorpha (" Ohia lehua," April). — Maui, Haleakala, 

 10,000 ft., Aug. (Perkins). One of the Hualalai examples is the type. 



(24) Nysius montivagus, sp. nov. 



Differs from the preceding by the glabrous, more shining appearance, paler 

 pronotum (laevigate areas dark), darker antennae, maculate femora etc. 



Hab. Lanai, Molokai, Hawaii. — Lanai, Halepaakai, July (Perkins). — Molokai, 

 4000 ft. (May, Perkins). Hawaii, Kilauea (Kirkaldy). 



(25) Nysius monticola, sp. nov. 



Superficially somewhat like N. ochriasis, but larger and more sordid, the fourth 

 segment of the antennae dark, and the pronotum laterally sinuate. 



Yellowish brown, a paler clear line on the vertex along the middle. Eyes blackish 



