Tethida barda
Black-headed Ash Sawfly - Tethida barda Urbana, Illinois, USA
Cladius difformis
A bristly rose slug (Cladius difformis) chews through a leaf. This insect is the larva of a sawfly in the diverse family Tenthredinidae. Urbana, Illinois, USA
Tremex columba
Pigeon horntail Tremex columba (Siricidae). Note the tattered wings and damaged legs; this is an older female at the end of the season. Urbana, Illinois, USA
Pigeon horntail Tremex columba (Siricidae). Urbana, Illinois, USA
The pigeon horntail Tremex columba may look like a dangerous wasp, but the long "sting" is just an egg-laying appendage. Larvae of this large sawfly feed on decaying wood. Urbana, Illinois, USA
Dolerus sp.
Portrait of a Dolerus sawfly. These grass-feeding insects are among the first active early in the North American spring. Urbana, Illinois, USA
Acordulecera
A small pergid sawfly perches in a spring buttercup. Austin, Texas, USA.
