3D models for teaching insect morphology and identification

Those of us who are fascinated by insects and have experience in entomology may have forgotten how challenging it was to learn the basics of insect morphology. Insects in general are small organisms and in some cases minute, so specialized optical equipment is required for their study. In addition, insects may possess important diagnostic structures that are difficult to pinpoint and locate during a class session. Insect morphology manuals usually use illustrations and photographs, however, many structures are too complex to be understood solely with two-dimensional materials. Currently, 3D models are being used in various aspects of science, such as dissemination, insect morphology and anatomy for organisms such as planthoppers, praying mantis, rove beetles among others. In this project, we propose the use of 3D models for training in morphology and identification of agriculturally important insects in soybean and corn crops in the Midwest. Models will be acquired using computerized tomography (CT) scanners on field collected insects. Sketchfab (https://sketchfab.com/) will be used to build interactive presentations for learners. These presentations will cover basic insect morphology, and material related to insect identification on main pests of corn and soybean. These material will be freely available through the University of Illinois Extension continuing education platform. Knowledge gain by participants will be measured using a ‘pre-test – intervention – post-test’ methodology. We will take a test before participants access to the material, and then another test after they complete the modules. We will also ask their thoughts about our material using a questionnaire.