Where can I catch cicadas in Xi 'an at night?

The Woods in the suburb of Xi 'an. Cicadas grow underground near the roots of trees, or in the Woods. When the sun went down, it began to dig holes and climb trees. At this time, it can go to the Woods near the Third Bridge in the suburbs of Xi to catch it. Cicada, also known as cicada, is a medium and large insect of Cicadaceae, with about 2000 species. It is 2 ~ 5 cm long, with two pairs of membranous wings, prominent compound eyes and 3 monocular eyes.