﻿42 ENTOMOLOG IS K TIDSKRIFT I921. 



tion, of which Austral Island, Pitcairn, Ducie Island, Easter 

 Island and the Juan Fernandez group (Mas-â-fuera and Mds- 

 à-tierra) are remnants. The four first-mentioned islands have 

 not, so far as I know, been subject to any natural history 

 investigations, and even Juan Fernandez, although only 650 

 kilometres distant from the Chilian coast, is very little known 

 as to its fauna. During one of his voyages round the world 

 the well known English entomologist J. J. VValker collected 

 a few insects at Juan Fernandez and among the Coleoptera 

 found by him there was according to CHAMPION^ at least 

 one remarkable species [PcntartJinim apicale Brown) pre- 

 viously known only from New Zealand. The working up of 

 all the collections brought home by the Swedish expedition 

 would thus be highly desirable. 



Of Hemiptera only the species described below was 

 found, but as Juan Fernandez has an abundant vegetation 

 several other species certainly remain to be discovered. The 

 new form belongs to the Myodochid?e, but is very distinct 

 from the Chilian insects ofthat family described by SpinoI-A, 

 Br.ANCllARD and SiGNORET. It belongs to the division 

 Rhyparochromaria in StÂl's system, apparently coming 

 nearest to Asteniuioplitus Spin. Its affinity to that genus 

 seems to me, however, to be rather remote, and it is much 

 more related to Mvtagcrra B. WiilTE from New Zealand, 

 although the latter genus must be jDlaced in StAI.'s division 

 Lethaearia. StÅI, separated these two divisions solely on 

 account of the different number and arrangement of the 

 opaque spots (enclosing the trichobothria) of the fourth ven- 

 tral segment, a character not supported by others. As I 

 remarked in a former paper" they should in my opinion be 

 united, for if their separation is maintained some genera 

 must be severed from their nearest allies and placed near 

 forms to which they are much less related. The new genus 

 here described has much in common with Metagcrra and 

 has the same general aspect, although it in the structure 

 of the posterior part of the corium is unique among the 

 Myodochidre. 



' Eiit. Moiuhlv Mag. 1909, p. 122. 

 - .\nn Soc. Ent. Belg. 191 3, p. 155. 



