Part L] Stebbing : Insect Pests of the Himalayan Oaks. 
7 
Part 11 : THE LONOICORN (CERAMBYCID/E) BEETLES 
OF THE OAKS. 
LOPHOSTERNUS HUQELII, Redtenb. 
The Oak Timber Longicorn borer. 
Reference. — Gahan, Fauna British India, Coleop. Vol. I., Cerambycidae No. 8 (p. 11) 
Nature of Attack. 
The grub eats out a deep and large irregular patch in the bast and 
sap wood of the Ban oak tree. When full fed it bores down into the 
heart of the tree. 
Previous Record of Insect. 
This beetle is common in the North-West Himalayan oak forests. 
I can find no data of its life history having been previously recorded. 
Distribution. 
Apparently spread throughout the oak forests of the Western Hima- 
layas. 
General Appearance. 
Larva . — A large yellowish white elongate thick grub. Plate II, fig. 1. 
Pnpa. — Yellowish, white, stout with the general appearance of the 
beetle, the parts such as antennae, wings, legs, etc., being fi'ee. 
Beetle . — S ■ — Chestnut red in colom', the head and prothorax darker 
than elytra, at times the thorax being mostly black. Head closely 
punctured ; the last joint of the palpi distinctly widened towards the 
extremity. Eyes are large and are placed rather close to the insertion of 
antenna behind. Antennae a little shorter than body, the first joint not 
reaching beyond the hind margin of the eye, 3 to 10 joints acutely pro- 
duced at the apex on the anterior side. The prothorax is finely and 
closely punctured in front and along sides, smooth and shining medianly, 
the hind angles obtuse and projecting and the side margins produced out- 
wards into two sharp points ; elytra ragulose the ridges finely punctured 
and each with two or three weak raised costae. The hind breast beneath 
covered with a tawny-coloured silky pubescence. 
The last ventral segment is sinuate at the apex. 
