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42Mathur & Singh (1951) recorded 28 species of borers on Vateria indica.Excepting H. aequalis and X. flavipes, none of the species collected in thepresent survey have been recorded earlier.Large borers46. Zanthoxylum rhetsa (Roxb.) DC.(Fagara rhetsa Roxb.)RutaceaeGlenea indiona Thomson (Ceram bycidae)G. homonospila Thomson ( ,9 )Small borersXyleborus similis Ferr.(Scolytidae)X. interjectus B land. ( 9, )The information presented here is based mainly on observations madeon freshly-cut logs stacked at Vazhachal (Trichur Dt.). The branches of livingtrees and freshly cut timber were attacked by the cerambycids belongingto the genus Gleneo.The yellowish grubs attack the stem at different placesand bore longitudinal galleries in the sapwood.Stored logs are attacked by Xyleborus similis and X. interjectus(Scolytidae) and their infestation can render the timber unfit for makingplywoods, veneers and various turnery articles.Only two borers, viz Neocallia pubescens(Cerambycidae) and Xyleborusnoxius (Scolytidae) have been recorded on this timber previously (Mathur &Singh, 1961).
Large borersSmall borersMISCELLANEOUS TIMBERS1. Artocarpus incisus Linn. f.Olenecamptus bilobus Fb. (Ceram bycidae)Xyleborus interjectus Bland,(Scolytidae)The freshly cut timber is very susceptible to attack by the large borerOlenecamptus bilobus. Several grubs of this species were observed to attack thesame log at different places, boring separate galleries. The main gallerynormally runs in a longitudinal plane through the sapwood for some distanceand then enters the heartwood.The scolytid, X. interjectus cause severe damage to debarked timberwith the borer holes running in all directions. The galleries reachupto the heartwood and the adjacent galleries often criss-cross. Timberaffected by this species is useless for any commercial use. The brenthid,Trachelizus politus was noted to breed in rotten logs. This tree is generallyplanted for its fruit and its timber is occasionally used for making packingcases. Mot common in forests.Large borers2. Bambusa spp. and Ochlandra spp.Diboma posticata GahanSmall borersDinoderus minutus Fb.D. ocellaris StephensDinoderus sp.Heterobostrychus aequalis Wat.Rhizopertha dominica Fb.Minthea rugicollis Wlk.Sipolus hypocrita Boh.Sipalinus gigas (Fb.)Myocolondra exorota Boh.(Ceram bycidae)(B ostryc h idae),# )( 3, )( I 9 )( y n )( Lyctidae )(Curcul ionidae)( ,, )( ,I )
Page 1 and 2: KFRI Research Report 10A SURVEY OF
Page 3 and 4: ABSTRACTAbout 100 commercially impo
Page 5 and 6: 3Control aspects of species injurio
Page 7 and 8: Fig. 1 . Map of Kerala showing coll
Page 9: 71. Aglaia elaeagnoidea (A. Juss.)
Page 13 and 14: Xyleborus simiiis Ferr.11(Scolytida
Page 15 and 16: 13galleries result in large excavat
Page 17 and 18: IFig. 4 - Round logs of Bornbox cci
Page 19 and 20: 17' i-I "Fig. 6 - A Xylarium specim
Page 21 and 22: 19this timber under long periods of
Page 23 and 24: Round logs are21heavi ly attacked b
Page 25 and 26: 23(Mathur and Singk, 1959). The maj
Page 27: 25E. grandis was tunnelled by Si/es
Page 30 and 31: Large borersSmall borers2826. Haldi
Page 32 and 33: 30Fig 14 - Hevea brasiliensis, heav
Page 34 and 35: Timber with and without bark are at
Page 36 and 37: 3434. Mangifera indica Linn.Anacard
Page 38 and 39: 36Mathur and Singh (1960-c) have li
Page 40 and 41: 38The small borer, Platypus solidus
Page 42 and 43: 40The small borers recorded here ca
Page 47 and 48: 45Eucorynus crassicornis Fb.(An thr
Page 49 and 50: 47- Antennal club composed of a sin
Page 51 and 52: The scutellum is white.granulations
Page 53 and 54: 51The grubs are yellowish, active a
Page 55 and 56: IIProthorax with lateral spines.Pro
Page 57 and 58: 55FAMILY BOSTRYCHIDAEMembers of thi
Page 59 and 60: in timbers of Grewia tiliaefolia, F
Page 61 and 62: I ~~~~~Elytra with a pair of teeth
Page 63 and 64: 9. Sinoxylon crassum Les. (Chart II
Page 65 and 66: 63in length. The body is covered wi
Page 67 and 68: 65a groove-like median line and pro
Page 69 and 70: IApical declivity of elytraforming
Page 71 and 72: The grubs are cream coloured and me
Page 73 and 74: 71Pronotum globular, conical in fro
Page 75 and 76: IPro n o t u m h o od -1 i ke , t u
Page 77 and 78: 75pee tea(stem of Sphaerotrypes sp.
Page 79 and 80: Chart VI gives a pictorial key for
Page 81 and 82: Eyes confli~ent and median. Rostrum
Page 83 and 84: striae and fringed with short ash-c
Page 85 and 86: -Rostrum Idng, promincntand broaden
Page 87 and 88: 85The tips of antennal segments are
Page 89 and 90: 87Although more than 50 species of
Page 91 and 92: 89GARONER, J. C. M., (1938). lmmatu
Page 93 and 94: Acalolepta rusticatrix (Fb.) -Acant

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