Saturday, July 08, 2006
Bibionid flies mating
One from this summer: a pair of flies (family Bibionidae) spotted mating in my garden. Quite a spectacular degree of sexual dimorphism - the female is the large colourful one with the small head, compared with the skinny male with the big head/eyes. Females can be quite conspicuous in the warmer months, flying slowly around lawns (the larvae feed on grass roots among other things).