Post #4304679

Small (~1.25mm) wasp that I've been finding in large numbers on yarrow growing in my yard. I'll probably never be sure, but my guess is that it's Aprostocetus anodaphus (Eulophidae), an endoparasite of Ozirhincus millefolii (Cecidomyiidae), which I've found on the same inflorescences in equally large numbers. As far as I know it has never been reported in North America. Please go out and check for them if you have yarrow and a macro lens. #wasps #hymenoptera #yarrow #achillea #flies #parasite #nature #insects #macrophotography