Leptinotarsa
Guides
Lebia grandis
Large Foliage Ground Beetle
Lebia grandis is a North American ground beetle and the largest species in its genus on the continent. Adults are specialist predators of Colorado potato beetle eggs and larvae, consuming up to 23 eggs or 3 third-instar larvae daily. First-instar larvae are obligate parasitoids of Leptinotarsa pupae, developing within host pupal chambers in soil. The species has primarily nocturnal habits and a cryptic life cycle that delayed recognition of its ecological importance for approximately a century after its formal description.
Leptinotarsa collinsi
Leptinotarsa collinsi is a leaf beetle species in the family Chrysomelidae, described by Wilcox in 1972. It is native to North America and belongs to a genus that includes several economically significant agricultural pests, most notably the Colorado potato beetle (Leptinotarsa decemlineata). Unlike its congener L. decemlineata, L. collinsi has not been documented as a major crop pest.