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a few other plants. It is known on Kauai, Oahu, and Hawaii. 
Ilburnia amamau Muir. [Delphacidae.] 
This species occurs on Sadleria cyatheoides on Haleakala, 
Maui. 
Ilburnia nephrolepidis (Kirkaldy). [Delphacidae. | 
This species occurs on Nephrolepis evxaltata. It has been 
collected at Maunawili, Oahu; Iao Valley, Maui; Ookala and 
Kilauea, Hawaii. 
Nesorestias filicicola Kirkaldy. [Delphacidae. ] 
Has been collected from Elaphoglossum gorgonum, and 
possibly other ferns. Palolo, Pacific Heights and Tantalus, 
Oahu. 
Nesorestias nimbata (Kirkaldy). [Delphacidae.] 
Has been collected on Phegopteris sp. and may occur on 
other ferns. Collected at Kaumuahona, Waiawa, Waiahole 
and Punaluu, Oahu. 
Nothorestias badia Muir. [Delphacidae.] 
Collected on undetermined ferns at Kuliouou, Oahu. 
Nothorestias swezeyi Muir. [Delphacidae.] 
Collected on Aspidium sp. at Makaha, Oahu, 1500 feet 
elevation. 
There are likely other species of Delphacidae yet to be 
discovered that are attached to some of the different ferns. 
Nesophryne filicicola Kirkaldy. [Tetigoniidae. | 
Nesophryne microlepiae Kirkaldy. 
These two species were recorded from Microlepia sirigosa, 
Kalihiwai, Kauai. 
Idiopterus nephrolepidis Davis. [Aphididae.] 
This aphidid is often found on Elaphoglossum reiiculatum 
and some other native ferns, and by some is considered a native 
insect. 
ORTHOPTERA. 
Paratrigonidium filicum Perkins. [Trigonididae.] 
This small cricket was found by Perkins at Olaa, Hawaii 
(two thousand feet), “in dense forest, frequenting a tall soft 
fern, which covers the ground beneath the trees.” 
Paratrigonidium viridescens Perkins. [Trigonididae.] 
This cricket was found in the same locality as the preced- 
