F-480474, 480481 
FIGURE 39.—Xylobiops basilaris, a false powder-post beetle: A, adult; B, 
larval damage (note openings to frass-frilled larval tunnels in cross- 
section of a persimmon log). 
The bamboo powder-post beetle, Dinoderus minutus (F.), a very 
destructive pest of bamboo in the West Indies, occurs in Florida 
and Louisiana. Adults are reddish-brown to brownish-black and 
about 2.5 to 3.5 mm. long. The wing covers are often redder than 
the rest of the upper surface. The female bores into bamboo culms 
at breaks in the rind, usually at cut ends and trimmed nodes, and 
then bores a tunnel across the grain. Eggs are deposited in the 
exposed ends of tubular vessels of the fibrovascular bundles. The 
interior of infested material is often reduced to masses of 
powdered wood and fibers. This species is also intercepted fre- 
quently in infested bamboo at ports of entry in this country. 
135 
