274 ENTOMOLOGICAL NEWS. [July, 'l8 



The Cottony Cushion Scale, Icerya purchasi, in Ceylon (Homop., 



Coccidae). 



Information has recently been received from the Government of 

 Ceylon to the effect that Icerya purchasi has become established in 

 that Colony, and a leaflet issued by the Ceylon Department of Agri- 

 culture gives further information, whereby it appears that this pest 

 was first discovered in December, 1915, on Acacia decurrens on an 

 estate in the Agrapatnas, Central Province, and that by October. 1916, 

 it had increased in numbers and spread on to Acacia dcalbata. In 

 August, 1916, it was discovered in enormous numbers in an Acacia 

 forest at Ambawela and subsequently was found on Acacias at 

 Galaha and Upper Hewaheta, appearing also on Citrus trees at 

 Galaha. It has apparently also been found on other trees at Kandy. 

 It thus becomes apparent that Icerya purchasi has obtained a firm 

 footing in Ceylon and has evidently been present in that island for 

 some time 



So far as we know at present, India is free of this scale. It is, 

 however, quite possible that it may occur. If any readers should 

 come across specimens answering to the description and figures here 

 given, they will confer a benefit on the general public by informing 

 me at once and sending specimens to Pusa for examination in order 

 that prompt measures may be taken to prevent the spread of this 

 noxious insect. T. BAINBRIGGE FLETCHER, Imperial Entomologist, in 

 The Agricultural Journal of India, vol. xii, pt. iv, pp. 525-531. Oct., 

 1917. 



*- 



Entomological Literature. 



COMPILED BY E. T. CRESSON, JR., AND J. A. G. REHN. 



LTnder the above head it is intended to note papers received at the 

 Academy of Natural Sciences, of Philadelphia, pertaining to the En- 

 toinology of the Americas (North and South), including Arachnida and 

 Myriopoda. Articles irrelevant to American entomology will not be noted: 

 but contributions to anatomy, physioloary and embryology of insects, how- 

 ever, whether rein tins to American or exotic species, will be recorded. 



The numbers in Heavy- Faced Type refer to the journals, as numbered 

 in the following' list, in which the papers are published. 



All continued papers, with few exceptions, are recorded only at their 

 first installments. 



The records of papers containing new species are nil grouped at the 

 end of each Order of which they treat. Unless mentioned in the title, 

 the number of the new species occurring 1 north of Mexico is given at 

 end of title, within brackets. 



For records of Economic. Literature, see the Experiment Station Record. 

 Office of Experiment Stations, Washington. Also Review of Applied En- 

 tomology, Series A, London. For records of papers on Medical Ento- 

 mology, see Review of Applied Entomology. Series B. 



2 Transactions, American Entomological Society, Philadelphia. 

 4 The Canadian Entomologist. 6 Journal, New York Entomo- 

 logical Society. 8 The Entomologist's Monthly Magazine, Lon- 

 don. 9 The Entomologist, London. 21 The Entomologist's 



