FAMILY CERAMBYCIDAE 



307 



laid some time about the end of April and during May, that the larvae spend 

 some nine months in this stage, and that the pupal stage is from six weeks to 

 two months, the grubs pupating in January or February. 



A number of dying rubber-trees had been felled at Charduar shortly 



before my arrival, and an examination showed that thev 

 Damage Committed , , , , ,, , , , ,, . . ^, 



in the Forest. nac * been badly attacked by this insect. The beetle 



apparently seeks out diseased or dying trees in which 



to oviposit. The danger of the insect in a rubber plantation is that 

 when numerous its attacks in the wood would gradually undermine the 

 vitality of the tree, and also lead to its being liable to be blown down by 

 wind. 



Trees badly infested by this pest should be cut out, cut up, and burnt. 

 If left standing they only serve as infected centres which \vill breed out 

 numbers of beetles who will subsequently attack other trees. 



Batocera titana, Thorns. 

 (The Mango-tree Longicorn Borer.) 



REFERENCE. Thorns. Mon. Arcan. Nat. p. 82 (1851 ). 



Habitat. Chicacole, Ganjam, Madras ; Taunggyi, Southern Shan States. 



Trees Attacked. - Mango 



(Mangifera indica] ; Chicacole, 

 Ganjam, Madras (S.Cox); ? Oak 

 (Quercus griffithii) : Taunggyi 

 (H. W. Watson). 



Beetle. A large heavy beetle of a 

 yellow or greenish-yellow colour, mottled 



with blackish 

 Description. markings and 



orange spots; 



under-surface clothed with a short sil- 

 very-grey or yellowish pubescence, as 

 also the legs ; antennae brown, 1st joint 

 black ; the vertex of head black, covered 

 with a yellow pubescence. Antennae 

 inserted on anterior edge of head, 1st 

 joint very stout and long, 2nd very short, 

 3rd longest of all and serrate on inside, 

 4th shorter than 3rd but longer than rest, 

 serrate on inside, but less so than 3rd, rest 

 more or less equal. 1'rothorax broader 

 than long ; sides produced medianly into 

 a sharp black spine bent downwards, a 

 broad collar on anterior edge, the disk 

 irregularly elevate with a short orange 



mark on either side of a median elongate K I(; . 245. 7A/A; t vn/ titana, Thorns. $. 



black line. Scutellum large, heart- Madras and Southern Shan Slates. 



