|Cactus Longhorn Beetle (Moneilema gigas)|
DESCRIPTION: L=up to 1.5". Overall shiny black with some white areas on their long antennae.
NATURAL HISTORY: Often seen feeding as adults on cactus stems (frequently prickly pear and chollas). Larvae (grubs with brown heads) feed on both stems and roots. Both adults and grubs may cause severe damage and even death to cactuses.