A splash of color for your Thursday evening:

Macrosiphum rosae - rose aphids, on a yellow rose in Tucson Arizona

The rose aphid, Macrosiphum rosae, dates its taxonomic heritage right to the opening of modern nomenclature. It was described by Linneaus himself in the 1758 volume Systema Naturae.

Of course, the aphids don’t pay much attention. They’re just happy to tap into rose phloem.

***update: Cameron Brumley informs me these may actually be Rhodobium porosum, another rose-feeding aphid. Am checking into it.

photo details:
Canon MP-E 65mm 1-5x macro lens on a Canon EOS 20D
ISO 100, f/13, 1/200 sec
diffuse twin flash