Chelone
Guides
Macrophya nigra
Macrophya nigra is a sawfly in the family Tenthredinidae whose larvae are specialized herbivores of turtlehead plants (Chelone spp.). Larval activity peaks in midsummer, with feeding damage capable of reducing host plant reproductive output. The species has been documented in Canada and is known to interact competitively with other herbivores sharing the same host plants.
Tenthredo grandis
Tenthredo grandis is a sawfly species in the family Tenthredinidae. Unlike typical wasps, sawflies lack a narrow "wasp waist," with the abdomen broadly attached to the thorax. The larvae are herbivorous rather than carnivorous, feeding on turtlehead plants (Chelone spp.) during midsummer. Adults are often observed on flowers and consume smaller insects as well as pollen and nectar. The species exhibits mimicry of stinging wasps despite females lacking a functional stinger.