244 



Scitala cenescens, Burm. There is nothing in the descrip- 

 tion of this species that indicates distinction from a darkly- 

 coloured specimen of S. sericans, Er., which varies extremely 

 in colouring. 



Scitala armatice'ps, Macl. I have examined the type of 

 this insect in the Australian museum and find that it is a 

 Neso, and differs from all the other described species of that 

 genus by, intei- alia, the remarkable elevated transverse carina 

 that crosses its clypeus a little in front of the clypeal suture. 



Cotidia australia, Boisd. This name stands in Masters' 

 Catalogue as a synonym of Sericesthis (Scitala) pruinosa, 

 Dalm., but that reference is certainly incorrect, as Boisduval 

 says, ''subtus pilis fulvis hirsuta." There is in the Macleay 

 Museum a specimen ticketed in Mr. W. S. Macleay's writing, 

 "Cotidia australis, Gory" — the name followed by an obscure 

 mark (in very much-faded ink) which I think has been a note 

 of interrogation. Unless the actual type can be referred to, 

 this Sydney specimen is probably the most authentic in exis- 

 tence, and it seems to agree fairly with Boisduval's pseudo- 

 description. It is a Hcteronyx, and therefore need not be fur- 

 ther discussed here. 



Melolontlia chloi'otica, Gyll. A label in the handwriting 

 of Mr. W. S. Macleay, bearing the words "Ectoma chlorotica, 

 Sch.," is attached to a specimen in the Macleay Museum. 

 Probably this specimen is a co-type, if not the actual type. 

 As it is a Heteionyx I need not discuss it further here. 



Sericesthis gertunata, Boisd. Described in six words. 

 Burmeister makes it identical with Sericesthis pruinosa, 

 Dalm., which is not a true Scitala. No guess, even at its 

 genus, can be made from the description. 



Melolontlia ciliata, Boisd. Referred by Burmeister and 

 Blanchard to Ilaplonycha, and reported by me under heading 

 of that genus as incapable of identification. The Macleay 

 Museum possesses a specimen ticketed in Mr. W. S. Macleay's 

 writing "Sericesthis ciliata, McLeay." It is almost certainly 

 a co-type. Being a Ileteronyx its further discussion will 

 stand over to the next paper of this series. 



Sericesthis ylahra, Blanch. Probably Scitala or Aiiodon- 

 tonyx, but the description does not mention the structure of 

 the antennae, and such as it is would apply to several species 

 of either genus. 



Scitala impressa, Brenske. This is probably a later name 

 for Neso f Scitala) ar?7iaticeps, Macl. The type of armaticeps 

 agrees well with Brenske's description. 



Scitala languida, 'Etr.^Anodontonyx. 



Sericesthis rnicans, 'B\sickh. = Anodontonyx. 



Sericesthis nigrolineata, 'Boisd. = Anodontonyx. 



