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ADULT ECOLOGY

Tiger beetles live in very specific types of habitats like sand dunes near seashores , rivers and lakes, but also on sand dunes, sand pits and sand blowouts far away from water. Other species are found in various upland sites, like hill sides, rocky areas near roads, trails and forest openings.

In many sites we can find more species living together, but there is no compitition umong them, becouse of the different microhabitats in wich they live, also many species are separated seasonally and have different times of emergence and so adults live in different periods of the year.

The adults are not active during rainy or cloudy cold days, becouse they are heliophilic insects, this means that there activity is regulated by air temperature, humidity and light intensity. Infact more hotter it is and more difficult it is to capture them, due to their velocity. This is not true for nocturnale species like Megacephala, Omus ext. wich do not fly, and can be found with head lamps while they look for eating. Usually tiger beetles prefer to run and fly when they are disturbed. To do this they jump up and open the elytra so the wings begin go out and become airborn.

In defence, many species of coleoptera produce oders that disturbs predator. Also in Cicindelidae we find this kind of tecnique, even if not so much complex, like it is in closely-related Carabidae. This becouse cicindelids can fly to escape predators, wich can be robber flies (Diptera: Asilidae), dragon flys (Odonata) and also vertebrates like reptiles and amphibians, birds and mammals.

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