David Liittschwager photographs insects on a bed sheet on Thursday, July 25, 2019 at Southwestern Research Station near Portal, Arizona.
A sphinx moth rests on a tree branch on Saturday, July 27, 2019 at Southwestern Research Station near Portal, Arizona.
Caterpillar specimens sit in containers waiting to be photographed by David Liittschwager on Sunday, July 28, 2019 at Southwestern Research Station near Portal, Arizona.
David Liittschwager sets up a time-lapse camera to capture insect swarm while the sun sets on Saturday, July 27, 2019 at Southwestern Research Station near Portal, Arizona.
Insects fly and cling to a bed sheet affixed with fluorescent and sodium lights on Saturday, July 27, 2019 at Southwestern Research Station near Portal, Arizona.
David Liittschwager photographs young research volunteers collecting caterpillars on Thursday, July 25, 2019 at Southwestern Research Station near Portal, Arizona.
A moth drinks nectar from wildflowers on Thursday, July 25, 2019 at Southwestern Research Station near Portal, Arizona.
David Liittschwager adjusts the position of a chrysalis with a paintbrush before taking its photo on Sunday, July 28, 2019 at Southwestern Research Station near Portal, Arizona.
A small chrysalis rests in a petri dish on David Liittschwager's insect portrait equipment on Sunday, July 28, 2019 at Southwestern Research Station near Portal, Arizona.
A swallowtail caterpillar goes into a defensive stance Sunday, July 28, 2019 outside the Southwestern Research Station near Portal, Arizona.
David Liittschwager photographs insects on a bed sheet on Saturday, July 27, 2019 at Southwestern Research Station near Portal, Arizona.
A moth clings to a bed sheet on Sunday, July 28, 2019 at Southwestern Research Station near Portal, Arizona.
