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should feel very thankful if some coleopterist in Berlin would do 
me the favor of procuring one of Erichson’s types for me to 
examine (which might perhaps be possible if the specimens in 
the Museum are fairly numerous), or failing that examine the 
type and write me a description of it, especially indicating the 
nature of the armature of the prothorax which in one place 
Erichson calls “lateribus medio obsolete nodosus ” and in another 
speaks of as being furnished “lateribus pone medium tuberculo 
parvo.” Pascoe described a genus WVeissa as resembling what 
Illena must be, but no doubt distinct from it because furnished 
with a spine on either side of the prothorax. Subsequently I 
suggested (P.L.S.N.S.W. 1889, p. 455) that Erichson’s ex- 
pressions are not consistent enough to warrant this conclusion 
and expressed the opinion that Weissa and Jllena are probably 
identical. Subsequently still, Mr. Gahan [Tr. E.S. 1893, p. 196] 
mentioned his having seen an insect named (by M. Chevrolat) 
I. exilis, the prothorax of which was spined laterally and added 
the information that Mr. Walker had found examples of it in 
Tasmania (Erichson’s locality). Recently my opinion on the 
matter has been somewhat shaken by the examination of a 
minute Longicorn (taken in N.S. Wales by Mr. Lea) which seems 
to agree much better than Wezssa does with Erichson’s descrip- 
tion of Zllena ; indeed I do not find any character on which this 
insect could be definitely stated to differ from that description 
provided the diagnosis of the prothoracic armature be accepted 
as ‘“lateribus medio obsolete nodosus” rather than the other 
diagnosis which implies the presence uf defined lateral tuberctes. 
As regards Mr. Lea’s insect as a species it must be very like, if 
not identical with, Erichson’s species; and although the great 
difference in locality would suggest the probability that if Erich- 
son’s type could be compared it would prove distinct, I deem it 
better to regard this insect pro tem. as “ Illena exilis, Er.?” and 
suppose that the species is widely distributed. 
