Seasonality and life histories of two endemic New Zealand carabid beetles (Coleoptera: Carabidae): Mecodema oconnori Broun and Megadromus capito (White)

摘要: Abstract Seasonal activity and life histories of two large endemic carabid beetles, Mecodema oconnori Broun Megadromus capito (White), were investigated in lowland forest remnants the Horowhenua region, North Island, New Zealand. was estimated from manual searches surface refuges, plus pitfall trapping October to March. Adults both species present throughout year, although M. much more abundant spring. larvae caught March, three instars overlapped temporally, implying a long period larval emergence development. Adult females dissected investigate their reproductive phenology. Both carried eggs for at least 6 months year. contained very few eggs, with maximum each mean 1.6 per female. Mg. had up 28 10.5. appear have low egg loads, relatively re...