XII.— An Account of some Geometric! Moths 

 collected in Sarawak. By L. B. Prout, f.e.s. 



(With one Plate.) 



The Geometrids of these collections, with the exception of 

 a few species which are common almost everywhere, are 

 exceedingly interesting and form a very valuable contribution 

 to our knowledge both of the fauna of Sarawak in particular 

 and of the geographical distribution of the family in general. 

 The large number of species relatively to the total of 

 specimens suggests how rich must be the resources of the 

 mountains worked, although it has occasionally been a slight 

 obstacle to the complete working-out of the material, as little 

 can be made of single specimens (especially if 9 or aberrations 

 or in poor condition) of obscure species. However, it has 

 been found possible to describe adequately a considerable 

 number of novelties, some of them quite striking; thirteen 

 are dealt with in the present instalment and several others 

 are awaiting description. 



Of the species not hitherto recorded from the Malayan 

 subregion, some, as would be expected, belong chiefly to India 

 and Burma, but a few find their affinities in New Guinea. 

 Special attention may be called to the very interesting case 

 of Horisme mnrudensis of the Mt. Murud collection. 



Unfortunately the dates of capture (and consequently the 

 exact altitude, for which our only clue was in the list of 

 dates), are not quite complete, as the smaller specimens were 

 unfortunately packed two or more in one paper and 

 uncertainties arose as they passed from hand to hand in 

 setting and preliminary sorting out ; otherwise the data 

 are very good. 



Sar. Mus. Journ., No. 9, 1926. 



