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Moths of Western North America$
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Jerry Powell and Philip Myers

Print publication date: 2009

Print ISBN-13: 9780520251977

Published to California Scholarship Online: March 2012

DOI: 10.1525/california/9780520251977.001.0001

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PRINTED FROM CALIFORNIA SCHOLARSHIP ONLINE (www.california.universitypressscholarship.com). (c) Copyright University of California Press, 2020. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in CALSO for personal use.date: 06 June 2020

Morphology

Morphology

Chapter:
(p.2) (p.3) Morphology
Source:
Moths of Western North America
Author(s):

Jerry A. Powell

Paul A. Opler

Publisher:
University of California Press
DOI:10.1525/california/9780520251977.003.0001

This chapter focuses on the morphology of adult and larval moths. The adult body framework consists of a hardened exoskeleton made up of a head, thorax, and abdomen. The head of an adult moth contains large compound eyes on the sides, antennae between them, and the mouthparts below, while the head of the larva is a round flattened structure characterized with lobes, bearing an ellipse of six simple eyes. The thorax of adult moths has three fused segments (pro-, meso-, and methathorax), each segment with legs and two pairs of wings in the middle and third segments. The thorax of larval moths is three-segmented with well-developed segmented true legs. The adult abdomen has 10 segments and segments 8 through 10 or 9 and 10 usually greatly modified to form external parts of the genitalia. In larval moths, the abdomen has 10 segments, with leglike organs on all segments.

Keywords:   morphology, moths, adult moths, larval moths, exoskeleton, head, thorax, abdomen, genitalia

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