F-519941, 480481 
Figure 110.—xylobiops basilaris, a false powderpost 
beetle: A, adult; B, larval damage (note openings to 
frass-filled larval tunnels in cross section of a 
persimmon log). 
are often redder than the rest of the upper surface. The female bores tunnels across 
the grain into bamboo culms at breaks in the rind and then deposits eggs in exposed 
vessels. The larvae often reduce products to masses of powder surrounded by easily 
shredded fibers. 
In 1967, a large infestation of Heterobostrychus aequalis (Waterhouse), the 
oriental wood borer, was found in oak and mahogany lumber in a mill yard in 
southern Florida (/2/8). This is one of the most common and most serious wood- 
boring beetles in India. It is widely distributed in Southeast Asia and it has been 
recorded attacking the wood from more than 35 species of trees. The adults are 
reddish brown to black and are from 6 to 13 mm long. The larvae become large, up 
to 13 mm in length. Usually the life cycle is 1 year, but it may take about 6 years. 
258 
