542 Transactions of the Society. 



male. What has long passed for G. javana in collections is oblita 

 Burr, which is probably what Zacher refers to under the name of 

 G. javana, and perhaps also 67. electa Burr, known from Java and 

 Ceylon. The genitalia of the latter are figured, and it will be 

 observed that they agree well with those of G. javana as figured 

 by Zacher. Probably Zacher's identification of G. sumatrana is 

 correct, as this is far less rare than G. javana, and has not been 

 subject to the same confusion and mistaken identity. 



If Zacher had given the dimensions, there would be no doubt 

 in the matter, as G. sumatrana is a much larger creature than 

 G. oblita. Zacher quotes Buitenzorg for his G. javana, a well- 

 known locality for G. oblita, just as Fort de Kock in Sumatra is 

 for G. sumatrana. His figure of G. sumatrana are like those of 

 G. oblita ; those of the authentic G. sumatrana are unknown. 



On the assumption that under the name of G. javana Zacher 

 is referring to G. oblita, we have only the following species now in 

 Gonolabis : — 



G. javana Bor., Type (= G. hukenthali Zacher). 



G. sumatrana Bor. 



G. oblita Burr (= G. javana, auctt. nee Bor.). 



(PL XII, figs. 7 and 8.) 



FOUKTH GKOUP. 



Metaparameres as broad as long, or broader than long. 



This group contains a number of forms from all regions, but 

 mainly palseotropical, more or less closely resembling each other 

 superficially, all of rather small size, showing every stage of wing- 

 development. 



We can eliminate first the Neotropical Hcterolabis Bor., with a 

 well-developed virga, and Anisolabella Zacher, from North-Eastern 

 Africa, with spindle-shaped antennal segments. 



The remaining forms fall into two groups : those with the meta- 

 parameres externally rectangular, and those with them rounded on 

 the outer margin. Easily separated first is Mongolabis Zacher, 

 which contains a number of what were formerly ranged in Gonolabis 

 — totally apterous forms, with the male abdomen dilated towards 

 the apex ; this genus contains only Oriental and Australian forms. 



The remainder, with non-dilated abdomens, might be allotted 

 to two genera, according to the outline of the metaparameres ; but 

 I prefer to regard this, provisionally at least, as a subgeneric 

 character, and put the whole of the remainder into Eulorellia 

 Burr, modified by the exclusion of E. sisera, E. greeni, E.^tnicillata, 

 etc., and by the inclusion of the apterous E. annulipes Luc, E.incisa 

 Bor., E. comjiressa Bor., and the fully-winged E.janeirensis Dohrn. 



