FAMILY CERAMBYCIDAE 



339 



FIG. 227. 



Xoanodera regnlaris, Gahan. 

 x . Assam. (F. B. /.) 



XOANODERA. 

 Xoanodera regularis, Gahan. 



REFERENCES. Gahan, A.M.N.H. (6) v, p. 52 (1890); ? Xoanodera pascoei, Brongn. Nouv. Archiv. du Mus. 

 (3) iii, p. 239 (1891) ; Gahan, F.B.I. Ceramb. i, no. 155, p, 150 (1906). 



Habitat. Darrang, Assam. Gahan gives N. India ?, Burma: Ruby Mines, 

 Karenee (Doherty), Tenasserim, Thagata (Fea), 

 Tavoy (Doherty). 



Tree Attacked. India-rubber (Ficnsclnstica). 

 Charduar Rubber Plantation, Darrang, Assam. 



Beetle. Dark brown or almost black in colour ; the 

 elytra covered for the greater par with a dense yellowish- 

 white pubescence, each with a 

 Description, basal spot close to the scutellum, 



and a lateral plaga that extends 



from the shoulder to a little past the middle, deeply and very 

 strongly punctured and bare of pubescence, the narrow 

 border between the submarginal carina and the outer 

 margin sparsely pubescent. Disk of prothorax with four 

 or more straight, sharp, longitudinal ridges, and a rather 

 dense covering of yellowish-white pubescence on the sides. 

 Breast and abdomen rather densely, the legs less densely 

 covered with a greyish-white pubescence. Length, 17 mm. 

 to 2i mm. : breadth, 5 mm. to 6 mm. 



I took a specimen of this beetle in the Charduar Rubber Plantation in 



the Darrang Division in Assam on 6 April 1906. Its 



Life History. flight time in this part of India may be taken, therefore, 



as the first weeks in April. The insect had just issued 



from a hole in the bark of a rubber-tree of pole growth, the larval gallery 

 being traceable inside the tree between the bast and sapwood. I have no 

 further notes on the life history of the insect. The beetle is remarkable 

 owing to the close approximation of its colouring to that of the bark of the 

 rubber-tree. The light markings on the elytra blend in an astonishing 

 manner with the bark, so much so that at a very short distance from the 

 tree the beetle is indistinguishable from the bark surface. 



GELON/ETHA. 

 Only one Indian species of the genus is known. 



Gelonaetha hirta, Fairm. 



REFERENCES. Fairm. (Stromatium), Rev. ct Mag. de Zool. 1850, p. 60; Gel<-"i,ct!ia cm-tipcs, Thorns. Rev. 

 ct Mag. de Zool. 1878, p. 13; Astrimus obscnnts, Sharp, Trans, I'nt. Soc. 1878, p. 204; Gahan, F.B.I. 

 Ceramb. i, no. 161, p. 155 (1906). 



Habitat. Salween River, Tenasserim ; Southern Shan States. Gahan 

 gives Calcutta; Coromandel Coast; Nilgiri Hills; Siain ; Philippine 

 Islands; Sandwich Islands; Tahiti. 



Tree Attacked. Teak (Tcctomi ^nvulis). Wutgyi, Salween River 

 (uiilii); Southern Shan States (Watson). 



Y 2. 



