"Reports that say that something hasn't happened are always interesting to me, because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns—the ones we don't know we don't know."
Donald Rumsfeld 2002.
Två hanar i släktet Pollenia (fam. Polleniidae, daggmasksflugor) som sannolikt förblir obestämda pga. att merparten av släktets arter är omöjliga att arta utgående från fotografier som dessa.
Pollenia amentaria dokumenterad i trädgården tidigare.
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