532 FAUNA HAWAIIENSIS 



The following is a list of the families represented endemically in these Islands : 

 Myodochidae, with Metrarginae and Cyminae ; Nabidae; Reduviidae with 

 Ploiariinae only; Anthocoridae ; Miridae ; Acanthiidae ; Tettigoniidae ; with the 

 tribe Phrynomorphini only; Fulgoridae, with Cixiinae only; Asiracidae; and 

 Chermidae. 



Cimicidae. Excluding an undoubted introduction, we have three species that are 

 not known elsewhere, but may occur in Samoa or some other Pacific Island. 



Urolabididae and Aradidae are entirely absent. 



Lygaeidae. Excluding an undoubted introduction, we have Ithaniar, which will 

 probably be found elsewhere. 



Myodochidae. In the Metrarginae, we have an apparently endemic subfamily, 

 which however may occur in Samoa and other islands. Nysms has between 20 and 30 

 species, all the endemic ones being arboreal. I think all the latter could have 

 originated from one immigrant. Sephora and Nesocymns are, I think, endemic, but 

 possibly not. Reclada I do not know, and, I think, it is not endemic. 



Pyrrhocoridae and Tingidae are entirely absent endemically, as also Gerridae, 

 Enicocephalidae, Nepidae and Macrocephalidae. 



Nabidae are well represented by more than 20 endemic species. Milu is doubtless 

 a direct offshoot of a Reduviohis like sharpianus. The endemic Reduviolus proper are 

 arboreal, but their offshoot Nesotyphlias are found on the ground under dead leaves etc. 

 and on tree-ferns. 



Reduviidae are represented endemically only by the slender, long-legged Ploiariinae, 

 of which I have recorded seven species ; one of these is however probably not endemic. 



Anthocoridae have six or more endemic forms. 



Clinocoridae, Polyctenidae and Dipsocoridae are absent. 



Miridae require a revision with more material, and there is a considerable number 

 of species undescribed. Siilamita, Kalania, Pseudoclerada and Kavieha^neha are 

 interesting endemic genera. Tichorhinus and Sarona seem to be the dominant forms. 



Acanthiidae are represented by five or more endemic species of Acanthia, which 

 are very variable in colour and pattern and need fresh study with more material. The 

 other families of the Notonectoidea are not represented endemically. 



In the Homoptera, Cicadidae, Cercopidae and Membracidae are absent, as also 

 (endemically) Aphidae, Aleyrodidae and Coccidae. Tettigoniidae are represented 

 by the endemic Nesophrosyne with a large number of forms, extremely variable 

 and difficult to limit, by NesopJiryne (one to four species) also apparently endemic, 

 and by one or two other forms in the same tribe (Phrynomorphini) also possibly 

 endemic. 



