439 



Chatterjee (N. C). Forest Entomology.— Reprint from Ann. Rept. 

 Bd. Scientific Advice for India, 1915-16, Calcutta [n. d.], Economic 

 Zoology, pp. 1-4. [Received 25th July 1917.] 



Sal insects which have been under observation during the year 

 include some 25 species of Scolytids ; the economic status of most of 

 these borers has been worked out. An accoimt of Hoplocerambyx 

 spinicornis, which has been reared from the egg in the insectary, will 

 be pubhshed shortly. The life-history of the sal Longicorn, Aeolesthes 

 holosericea, ¥., is under observation. 



Teak insects are being studied and notes collected on their hfe- 

 histories, including the Cossid moth, Duomitus ceramicus, Wlk., and 

 the Longicorn beetle, Haplohammiis cervinus, Hope. 



Insects attacking sundri {Heritiera fomes) include five species of 

 Longicorn and Buprestid beetles ; three species of Platypodid shot-hole 

 borers, which are the only serious pests of sundri, none of them being 

 able however to attack a perfectly healthy tree ; and three species of 

 Scolytid pin-hole borers. 



The chir pine scale-insect, Ripiersia resinophila, Green, is being 

 studied, and measures for checking the increase of this pest have been 

 devised. The seasonal history of the toon shoot borer, Hypsipyla 

 robusta, Mo., has been studied and an account of it is being prepared 

 for publication. Sack-banding the older trees and early pruning in 

 plantations have proved efficient methods of control. Reports of 

 various pests include Pohjgraphus major, Steb., on Pinus excelsa and 

 on P. longifolia: Crossotarsus sp. and Cryptorrhynchus sp., also on 

 Pinus longifolia ; Protaetia neglecta on deodar seedlings ; Scolytus 

 {Eccoptogasler) major, Steb., Ijys ribbentropi, Steb., Scolytus deodara, 

 Steb., Crossotarsus sp.. Cryphalus sp. and Tetropium oreinum have all 

 been recorded on deodar ; Myllocerus sp. were found on shisham 

 leaves ; MonopMebus stebbitigi on shoots of sal and a Prionid larva 

 on the roots. Pyralid, Cossid and Longicorn larvae have all been 

 found on culms of uUa grass, and a Microlepidopterous larva on 

 jamun leaves. A species of Coccid, an unknown Lamiid borer and 

 specimens of Zeuzera cqffeae have all been recorded on sandal saplings. 

 Ingura subapicalis was found defoliating sal ; grubs of Oryctes rhinoceros 

 damaged teak in a nursery. Caryoborus sp. were found infesting seeds 

 of Acacia donaldi ; caterpillars of Hyblaea puera defoliated plantation 

 teak. Geometrid, Lymantrid and Bombycid larvae defoliated khair 

 and sissoo {Dalbergia sissoo), and an unknown Prionid larva attacked 

 the latter. An Aphid of the species Lachnus damaged Michelia excelsa 

 in plantations. Xyleborus discolor and X. inter jectus, Bldf., have been 

 found attacking the branches of Mesua ferrea. Metanastra latipennis 

 and Lebeda nobilis, Wik., defoliated Khasya pine ; Haplohammus 

 cervinus, Hope, damaged teak stems. Weevils attacking teak saplmgs 

 proved to be Alcides ludificator, Fst. A Cerambycid beetle, near 

 Pachydissus parvicolUs, Gahan, was bred out from the heart-wood of 

 Xylia dolabriformis. A weevil, Tanymecus sp., severely damaged 

 leaves of Bomhax malabaricum, and Protocerius grandis, Guer., 

 attacked Phoenix pnludosa. 



