engleski

Seasonal fluctuation of adult and larvae of Agriotes spp. (Coleoptera: Elateridae in central Croatia

The seasonal larval and adults abudance of the five wireworm species was examined in central Croatia in a three-year period. Sex pheromone and soil bait traps were used and soil samplings were made. Sex pheromone traps operated from April to September. Soil bait traps were installed for 15 days in April. Soil samplings were made in April at a depth of 30 cm. The population density of Agrotes lineatus is described as high at both localities. The swarming period of A.lineatus lasted from April to mid August. The population density of Agriotes ustulatus on two lacalities was from low to high. The swarming period of A.ustulatus lasted from mid May to early July. The population density of the Agriotes brevis at both localities is described as medium. Before this investigations there was no literature data about A.brevis presence in Croatia The population densities of Agriotes sputator and Agriotes obscurus were low to medium. The swarming period of all three species lasted from April to July. In soil samples 1-12 larvae/50 soil samples were found. In bait traps 2-111 larvae/50 traps were found. Using soil bait traps and soil sampling larvae of all five species were collected.

seasonal fluctuation; Agriotes spp.; Croatia

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