CDFA Pest Prevention Plant Regulation Practice Exam

In terms of pest identification, which order does the southern cornstalk borer belong to?

1. Homoptera

2. Lepidoptera

3. Hymenoptera

4. Coleoptera

The correct answer is: Lepidoptera

The southern cornstalk borer is classified within the order Lepidoptera, which encompasses butterflies and moths. This order is characterized by insects that have two pairs of wings covered in scales, and a distinct life cycle that includes a metamorphic stage consisting of egg, larva (caterpillar), pupa, and adult. These characteristics make Lepidoptera a key order within the study of entomology, particularly in relation to agricultural pests, where insects like the southern cornstalk borer can significantly impact crop production. In contrast, the other orders mentioned have distinct characteristics that separate them from Lepidoptera. For example, Homoptera includes sap-sucking insects such as aphids and planthoppers, which are not closely related to moths and butterflies. Hymenoptera consists of bees, wasps, and ants, known for their complex social structures and role in pollination. Coleoptera, which includes beetles, is recognized for its hardened forewings and diverse adaptations. Understanding the classification of these orders is crucial for effective pest management and identifying species that may pose risks to crops.