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Type: Article
Published: 2023-05-08
Page range: 555-562
Abstract views: 181
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Comparison of the structure and musculature of male terminalia in the genera Chloroclystis Hübner, Sigilliclystis Galsworthy, and Ziridava Walker (Lepidoptera: Geometridae: Larentiinae)

SNSB - Zoologische Staatssammlung München
Lepidoptera Australia coremata Eupitheciini geometrid moths larentiine moths male genitalia morphology muscles Palaearctic region saccus transtilla uncus


The structure and musculature of the male terminalia are described in three type species of the eupitheciine genera Chloroclystis Hübner, Sigilliclystis Galsworthy, and Ziridava Walker (Lepidoptera: Geometridae: Larentiinae). The following traits are characteristic for all three genera: (1) the tergal flexors of the valvae, muscles m4 running to the medial part of the transtilla or membrane anterior to the transtilla; (2) the sternal extensors of the valvae, muscles m8(3), broadly running to the inner wall of the saccus, with long lateral bundles; (3) the twisted muscles m7(6) running from the lower margin of the saccus. The peculiar structure of the transtilla is described and illustrated.



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