lead-cable borer

beetle

Also known as: Scobicia declivis, short-circuit beetle

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Last updated

June 30, 2026

Quick Summary

The lead cable borer (Scobicia declivis) is a type of beetle that normally bores into hardwood but can damage telephone cables. This beetle is part of the Bostrichidae family, which includes approximately 700 species that live in dry wood or under tree bark. While the lead cable borer does not feed on the cable sheathing, moisture entering the holes it creates can cause short circuits. These beetles are found in oak, maple, and other trees. Other beetles, like the Asian longhorned beetle, are invasive pests that tunnel into living hardwood trees, weakening and killing them.123

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branch and twig borer
The lead-cable borer, or short-circuit beetle (Scobicia declivis), bores into the lead covering of older telephone cables. Moisture entering through the hole can cause short circuits. This beetle lives in oak, maple, or other trees and does not feed on the cable sheathing.
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The lead-cable borer, or short-circuit beetle (Scobicia declivis), bores into the lead covering of older telephone cables. Moisture entering through the hole can cause short circuits. This beetle lives in oak, maple, or other trees and does not feed on the cable sheathing.
Read More