ABSTRACT: This book is the second of four volumes in the Handbook of Zoology series which treat the systematics and biology of Coleoptera. With approximately 350,000 described species, Coleoptera are by far the most species-rich order of insects and the largest group of animals of comparable geological age. The editors with reference to the publication R.G. Beutel and F. Haas (2002) declare that the important peculiarity of Polyphaga is the presence of cervical sclerites (p. 152), but it does not mention the thoughts of R.A. Crowson (1975) on connection of presence of these sclerites in different Neuroptera and Polyphaga among Coleoptera, and also Request PDF on ResearchGate | On Aug 1, 2006, A. Minelli and others published Coleoptera, Beetles. Volume 1: Morphology and Systematics. Handbuch der Zoologie/Handbook of Zoology; Band/Volume IV Data on the morphology of the egg, mature larva (L 3) and pupa of Squamapion elongatum (Germar, 1817) are presented. The development cycle of this species lasts 51-54 days: a 12-day egg period, a 30-day larval period, and a 12-day pupal period, on average. Synopsis on Passalidae family (Coleoptera: Scarabaeoidea) of Brazil with description of a new species of Veturius Kaup, 1871 Even though a huge area of the country remains untouched, two tribes, eight genera and ninetyeight species of Passalidae are found in Brazil until now. COLEOPTERA Beetles Ordinal Characteristics: (1) chewing mouthparts (2) complete metamorphosis (3)t ifi thfitihddth(3) two pairs of wings, the first pair hardened, the Insect Identification Key. Order Coleoptera: the beetles Based on your answers to the questions, you have identified your insect as being in the order Coleoptera! Members of this order include: a huge diversity of beetles, including ladybugs, fireflies, junebugs, stag beetles, weevils, burying beetles, rove beetles, click beetles, rose chafers, and many others. Note: Citations are based on reference standards. However, formatti