520 



BuEKiLL (I. H.). Catochrysops pandava, a Butterfly destructive to 

 Cycads. — Gardens' Bull. Straits Settlements. Singapore, ii, no. 1, 

 4th July 1918, pp. 1-2. 



Catochrysops -pandava, Horsf., is very destructive to Cycads, Cycas 

 rumphii and C. siamensis, in the Botanic Gardens at Singapore. Eggs 

 are laid on the backs of still curled Cycad leaves and hatch in 3 or 4 

 davs, the young larvae at once beginning to feed and generally moving 

 to the upper side of the uncnrling leaf for the purpose. They mature 

 in 21 days and pupate on the back of a leaf or other sheltered place. 

 By that time the pinnae of the leaves of the food-plants have usually 

 been entirely destroyed and some attack has frequently been made 

 on the fleshy axis of the leaf. Neither larvae nor adults travel far 

 from their breeding place, Cycads not more than a quarter of a mile 

 from uifested plants having repeatedly escaped attack. No other 

 food-plants of C. pandava have been found, though it seems doubtful 

 whether the length of life of the butterfly on the wing is sufficient 

 to fill the interval between its emergence at five weeks from oviposition 

 and the time when the food-plant can produce new foliage. An 

 arsenical spray is recommended as a remedy. 



LEGISLATION. 



Taiwan yori Kiuri oyobi Suika Inyu Kinshi no Shush!. [The Prohibition 

 against the Export of Cucumbers and Water-melons from 

 Formosa.] — Imperial Plant Quarantine Station, Tokyo, November 

 1917, 1 p., 1 plate. 



Since the larva of the melon- fly {Dacus cucurbitae, Coq. ) was discovered 

 in cucumbers imported from Formosa by the Kobe Imperial Plant 

 Quarantine Branch Station in February 1917, and as this pest might 

 readily become estabUshed in Japan, where it does not as yet occur, 

 the importation of cucumbers and water-melons from that island is 

 prohibited in accordance ^^^th Section VII of the Imperial Plant 

 Quarantine Law. 



By Ordinance No. 29 of the Department of Agriculture and Com- 

 merce, published on the 23rd October 1917, the importation or receipt 

 of cucumbers or water-melons from Formosa was forbidden on and 

 after the 15th November 1917. 



This pamphlet also contains brief accounts of the distribution, 

 habits and destructiveness of this pest, demonstrating the necessity 

 for this prohibition. 



- ENTOMOLOQICAL NOTICES. 



Mr. F. H. Taylor of the Australian Institute of Tropical Medicine 

 has been appointed Entomologist to the Special Blow-Fly Committee 

 (Queensland) of the Federal Bureau of Science and Industry. 



