128 



Indian Museum 'ISoies. 



[Vol. in. 



tho Destruction of Cocoannt palms by Beetles, Singapore, 1889. It shows 

 t he dilapidated appearance which acoeoanut estate presents when suffer- 

 ing from the attack of. the beetles Rhynchophorusferrugineus, Oliv., and 

 Oryctes rhinoceros, Linn. These insects are referred to in these Notes, 

 volume II, pages 8, 9, 149, and 151, the various stages of Rhyncho- 

 pkorus fcrrvgiucus, Oliv., being figured in volume II, page 8. 



The above represents a species of Scolytid.se belonging to the genus 

 Polf/graphns (allied to P. pubescens cf Europe), which has been reported 

 as tunnelling into the bark of Pinns excel sa trees in the North-West 

 Himalayas. The figures show the larva and imago enlarged, also much 

 magnified diagrams of the antenna and legs of the beetle. The topmost 

 leg is the front one. 



