﻿BERGROTH : THE FIRST HETEROPTERON FROM JUAN FERNANDEZ. 45 



tum. Segmentum sextum ventrale maris quinto et quarto 

 conjunctis paullulo brevius. Long. 4,5 — 5,3 mm. 



Juan Fernandez (Mas ä-tierra, in August), i J", 3 Ç, and 

 a larva. In spite of the long corium it must be considered 

 a subbrachypterous form. The coria are apparently fused 

 together along the whole commissure, the hindwings are in 

 all probability lacking, and the insect is thus incapable of 

 flying. It is not likely to have a macropterous form. Should 

 such a form contrary to all presumption exist, it will prove 

 to have the pronotum broader behind, the coria free and 

 considerably shorter, and the membrane much longer. 



