title: Musculature of the male genitalia in Rivellia (Diptera: Platystomatidae).
abstract: The musculature of male genitalia was studied hitherto only in two species of Tephritidae, one species of Platystomatidae, one species of Pallopteridae, and three species of Ulidiidae of the superfamily Tephritoidea. The split of the hypandrium from one structure into three (the hypandrium and two lateral sclerites) is traced. The hypandrial origin of the lateral sclerites of the hypandrial complex is shown based on the localization of muscle attachment sites. The subepandrial origin of the inner lobes of the surstyli is also confirmed.
authors.affiliation: Department of Entomology, Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow, 119234, Russia.
authors.forename: Tatiana V
authors.initials: TV
authors.lastname: Galinskaya
authors.affiliation: Zoological Institute, Russian Academy of Sciences, St. Petersburg, 199034, Russia.
authors.forename: Olga G
authors.initials: OG
authors.lastname: Ovtshinnikova
keywords: Platystomatidae; Tephritoidea; body size; male genitalia; musculature; sclerites