Eur. J. Entomol. 105: 279–312, 2008 http://www.eje.cz/scripts/viewabstract.php?abstract=1332 ISSN 1210-5759 (print), 1802-8829 (online) Morphology of the spermatheca in the Cydnidae (Hemiptera: Heteroptera): Bearing of its diversity on classification and phylogeny DOMINIQUE PLUOT-SIGWALT1 and JERZY A. LIS2 1Biologie et Évolution des Insectes, École Pratique des Hautes Études et Muséum National d’Histoire Naturelle, 45 rue Buffon, F-75005 Paris, France; e-mail:
[email protected] 2Department of Biosystematics, Division of Invertebrate Zoology, University of Opole, Oleska 22, PL-45-052 Opole, Poland; e-mail:
[email protected] Key words. Heteroptera, Pentatomomorpha, Pentatomoidea, Cydnidae, Amaurocorinae stat. n., vaginal structures, spermatheca, parietovaginal gland, ring sclerite, fecundation canal, morphology, classification, phylogeny Abstract. Cuticular parts of the spermatheca and associated vaginal structures (chiefly the ring sclerites of the parietovaginal glands) have been examined and compared in 190 cydnid species representing 65 genera and all five subfamilies currently recognized in the family (Amnestinae, Cephalocteinae, Cydninae, Garsauriinae, Sehirinae). Four species belonging to genera formerly included within the Cydnidae (Dismegistus, Parastrachia, Thaumastella, Thyreocoris) were also examined. Morphology of the three main parts of the spermatheca [seminal receptacle (distal bulb), intermediate part (pump apparatus), spermathecal duct] is described. Four main types of spermathecae can be recognized from the distal receptacle and the intermediate part: the amaurocorine type (in Sehirinae: Amaurocorini), amnestine type (in Amnestinae), garsauriine type (in Garsauriinae), and “cydnoid” type (in Cephalocteinae + Cydni- nae: Cydnini, Geotomini + Sehirinae: Sehirini). No synapomorphy of these types was found which suggests that the currently con- ceived Cydnidae are not monophyletic.