Please do not forget the Photography Contest. Entries close next Monday.
I was walking yesterday on the University of Colorado campus, past a semi-maintained garden, when I saw a tomato growing out of a thistle. iNaturalist informs me that it is Urophora cardui – thistle stem gall fly, on what I think is Cirsium arvense – creeping thistle. I will keep an eye out for the fly and the larva(e), though I imagine the fly has laid her egg(s) and gone on her way.
