Bloodworm is a novel written by John Halkin. It was first published in 1987.
Description[]
The strange new beetles look like exquisite jewels -- covered with emerald and yellow markings. — But utterly murderous! — Accompanying them are something even more terrifying -- gigantic worms that turn pink after feasting on human blood. These lethal allies now converge in devastation and massacre of a terrified city. — And no one can escape their horrendous onslaught.