A tenebrionid beetle, Onymacris rugatipennis, it buried itself one moment and then rushed forth again, as if skating along the surface of infinite sand grains.

我们还看见一种拟步行虫（Onymacrisrugatipennis）一自己埋进地，一又向前冲，好像在无地上溜冰，动作之快，我几乎来不及抢拍牠模样。