BY THE REV. T. BLACKBURN. 455 



of that insect does not mention the length of the antennae ; if 

 they are identical with it the description must have been founded 

 on a much darker example than any I have seen, but in some 

 respects {e.g., the greater size and the colouring of the antennae) 

 they seem to correspond very well. The specimen coming nearest 

 to actual identity with Mr. Pascoe's fig. of L. luctuosus was sent to 

 me from ;N"orthern Queensland by Mr. T. G. Sloane, but it was 

 accompanied by another so extremely different in markings that 

 I cannot satisfy myself absolutely of the two not being specifically 

 distinct. I think the genus requires to be studied by some one 

 resident in tropical Australia, who could be certain which speci- 

 mens were taken actually in company. 



Ill^na, Er. 



There appears to be little doubt that Neissa, Pasc, is identical 

 with this genus. Mr. Pascoe distinguishes his genus on the ground 

 of its having the prothorax " abruptly spined " at the sides, 

 whereas Erichson calls that of Illcena only " slightly nodose at 

 the sides." Erichson, however, though using this expression in 

 characterising the genus, yet in describing the species varies it 

 somewhat, saying that the sides of the prothorax are " furnished 

 with a small tubercle/' which certainly brings the character of 

 Neissa too near it to justify generic distinction. Mr. Pascoe's 

 S. Australian species are very likely to be distinct from Erichson's 

 Tasmanian /. exilis, although no very good distinctive character 

 is mentioned for the smaller one. I possess examples (from Port 

 Lincoln) of an insect that is probably identical with Illmna 

 (Neissa) inconspicua, Pasc. ; and also a single example (from 

 Western Australia) of the following apparently new species. 



Ill^na meyricki, sp.nov. 



Sat angusta ; fusco-picea, ore, antennis, pedibus, elytrisque, 

 dilutioribus ; his piceo-notatis ; corpore supra obscure sat crasse 



