ENTM 010 Midterm 2 2026 – 120 Questions & Answers on Insect Orders, Hemiptera & Coleoptera (ENTM010) – University of California Riverside

This document provides a structured set of approximately 120 exam questions with 100% correct answers for ENTM 010 Midterm 2 2026, focusing on insect taxonomy, morphology, and key identifying characteristics of major orders. It covers essential topics such as ametabolous vs hemimetabolous development, insect anatomy, and detailed classification of orders including Ephemeroptera, Odonata, Orthoptera, Hemiptera, and Coleoptera, as clearly presented throughout the Q&A format in . For example, the content on page 1 highlights foundational groups like Collembola and Thysanura, while later pages expand into advanced classifications such as Heteroptera and Auchenorrhyncha. The material is aligned with core entomology textbooks such as Borror and DeLong’s Introduction to the Study of Insects and The Insects: An Outline of Entomology by Gullan & Cranston. It includes in-depth coverage of insect orders and their distinguishing features, including mouthparts (chewing vs piercing-sucking), wing structures (tegmina, elytra), reproductive strategies (parthenogenesis, traumatic insemination), and ecological roles (predators, pests, aquatic species). The document also explores detailed subgroups such as aquatic Hemiptera (water boatmen, giant water bugs), terrestrial pests (aphids, stink bugs, bed bugs), and beetle families (scarab beetles, click beetles, ladybird beetles, weevils), emphasizing identification and functional traits. This resource is highly relevant for students enrolled in Entomology (ENTM 010), Biology, Zoology, Environmental Science, and Agricultural Science courses. It is particularly useful for undergraduate students at the University of California Riverside preparing for midterms, finals, or practical identification exams, as well as learners seeking a clear and efficient revision guide for insect classification and morphology. Overall, this document serves as a concise yet in-depth study guide, helping students master insect orders, improve identification skills, and confidently apply taxonomic knowledge in exam settings. Keywords: insect taxonomy, insect orders, hemiptera classification, coleoptera families, odonata traits, orthoptera features, ametabolous hemimetabolous, insect morphology, mouthparts types, tegmina elytra, aquatic insects, insect identification, entomology exam, insect families, taxonomy study