German scorpionfly, Heeswijk, Netherlands

Quite common in my area but I'll never get bored of seeing them, as they are so unusual looking little freaks. They are named after the male appendage that looks similar to a scorpion's stinger. On this fly, however, it's not a stinger, instead they are genitalia with claspers to hold onto the female during mating. Here's a closeup of this appendage:

Be sure to also check out its freaky mouth: