FAMILY CERAAIBYCIDAE 



355 



This beetle, as Lefroy notes correctly in Indian Insect Pests, where the 

 brief note on the life history corroborates my in- 

 Damage Committed, vestifi^ations and those of others, is to be found com- 

 monly issuing from bamboos used in the thatchinj::: 

 of roofs. The bostrychid borers {Dinoderus), Stromatium barbatum, and this 

 Caloclytus are probably responsible for the chief boring work done in the 

 bamboo structure of thatched roofs in India. 



The method of preserving the bamboos from these attacks has been 

 already alluded to under Dinoderus minutns (p. 135). 



Ranger Sen Gupta whilst a student at the Imperial Forest School at 

 Dehra Dun obtained this beetle from bamboos in Backerganj in June 1902. 



I have noted it since the year i8g8 as common in Calcutta and 

 Dehra Dun. 



Caloclytus sp. prox. signaticollis. 



Reference. — Determined as close to signaticollis. 



Habitat. — Goalpara, Assam. 



Tree Attacked. — Sal {Shorea robnsta). Goalpara, 



Assam. 



Beetle. — Elongate, slender, with short antennae. Canary-yellow, 



with a circular black spot on the dorsal surface of the thorax, and 



wavy transverse bands of the same colour 



Description. on the elytra. Head black behind, with a 



yellow pubescence covering the front. The 



canary-yellow colour is caused by a thick, short pubescence. The 



black lines on the elytra consist of an ellipse in the shoulder and two 



trans\'erse lines, one placed medianly and the other near the apex- 



Under-surface canary-yellow. Length, 13,2 mm. 



I cut a dead specimen of this beetle from the 



sapwood of a large branch of a 



Life History. newly-felled sal tree in Goalpara, 



Assam, in May igo6. Old larval 



galleries showed that the grubs feed. in the cambium 



and sapwood until full-fed, when they bore down at 



an angle for an inch or so into the sapwood, and hollow out a pupal 

 chamber in this and pupate in it. 



Caloclytus 

 si>'-iia/iiollis 



241. 



sp. prox. 

 . Assam. 



Hyagnis. 



Hyagnis fistularius, Pasc. 



Reference. — Pasc. Jour, of Ent. ii, 280. 



Habitat.— Satara, Bombay. Also reported from Port Natal. 

 Tree Attacked. — Anogeissus latifolia. Satara (Young). 



z 2 



