389 
SPH/EROTRYPES SIWALIKENSIS, n. sp. 
' THE SAL-BARK-BORER, 
Plate~xXXil) figs: 15 1a; rdpres 
Classification :—Order, COLEOPTERA. Family, Scolytida. Sub« 
Family Hylesini- 
Tree attacked :—(Shorea robusta) Sal. 
Description, 
Larva.—White curved, legless, thick, robust and much 
corrugated, with a small brownish yellow head; very convex 
dorsally, flat ventrally and elliptical in section (see fig. 1, a). 
Pupa.—A\|most spherical in shape, white, has the appear- 
ance of beetle but is soft, and legs and antennz and wings are 
compressed against the sides and breast. 
Beetle.—Elongate, globular, very convex above. Black, with 
often a reddish tinge on the thorax and basal portion of elytra. 
Head black, with black prominent eyes ; antennz yellow, angled, 
ending in aclub; thorax with anterior margin half the width of 
the posterior, the margin produced forward into a lobe in the 
middle, with a transverse depression below it; sides rounded, 
posterior margin produced backward medianly into a sharp point, 
a fine raised longitudinal black line down centre, the rest of 
surface being covered with slightly raised irregular elevations, 
Elytra longitudinally striate with the intervals consisting of rows 
of prominent rounded serrate elevations, like blunt teeth; the 
elytra taper slightly towards apex, the basal margin being 
angularly convex and serrate; the basal fifth is often red in 
colour and much less deeply striate, and the elevations are less. 
prominent than on the rest of surface. Under-surface black, the 
abdominal segments thickly clothed with longish yellow hair, 
Legs brown, tibia serrate on edge, tarsi lighter coloured. Length 
1th to th inch. The black elevate line down prothorax, and 
the remarkably deeply striate and corrugate elytra serve to 
distinguish this insect, a dorsal and side view of which is shown 
in Pl. XXII], figs. 1a, 10. 
