161 



Hab. Kauai, Kalihiwai, 400 ft., on fern (probably 

 Gleichenia dichotoma) — Oct., Giffard. 



Nymph of fifth instar pale brownish yellow, varyingly 

 infuscate on the nota, a pale fuscous band across the bend of 

 the head. Like the adult, but the head a liitlo more pioduced, 

 subangularly. 



Hab. with the adult. 



Fam. Poekillopteridae. 



The metamorphoses of this and the two next families have 

 been summarized by myself in Bull. Ent H.S.P.A. I. 277. 



21 Siphanta acuta (Walker) 



The metamorphoses have been partially studied by myself 

 (^^). This introduced species has now spread from the guava and 

 coffee districts into the native forests, where it feeds on 

 Acacia hoa and other trees. It is parasitized by Aphanomerus 

 pustllus, an introduced egg-parasite and attacked by a fungus. 



Fam. Asiracidae. 

 Nesosyd/ne gen nov. 



Differs from Delphacodes and allied genera by the form of 

 the tibial spur, which is solid, subcultrate, elongate, very nar- 

 row and armed with a few strong teeth. Arboreal. Type 

 koae Kirkaldy. 



22 koae sp nov. 



May be at once distinguished from any other Hawaiian 

 asiracid by the green color and long tegmina. There is a 

 variety, (rubescens), found with it, suffused with pinkish. It 

 is likely to be found on Oahu practically wherever Acacia hoa 

 occurs, but I am not sure of its distribution on the other islands. 



Nymph in fifth instar is green (or suffused with pink) and 

 resembles the adult in most particulars. 



(52; Bull. H. S. p. A. III. PI. VI figs. 17-20. 



