Morphometric analysis and taxonomic revision of <i>Anisopteromalus</i> <scp>R</scp> uschka ( <scp>H</scp> ymenoptera: <scp>C</scp> halcidoidea: <scp>P</scp> teromalidae) – an integrative approach

Abstract

Abstract We use an integrative taxonomic approach to revise the genus Anisopteromalus . In particular, we apply multivariate ratio analysis ( MRA ), a rather new statistical method based on principal component analysis ( PCA ) and linear discriminant analysis ( LDA ), to numerous body measurements and combine the data with those from our molecular analysis of Cytb and ITS2 genetic markers (on a subset of species) and all available published data on morphology, karyology, behaviour, host associations and geographic distribution. We demonstrate that the analysis of quantitative characters using MRA plays a major role for the integration of name‐bearing types and thus for the association of taxa with names. Six species are recognized, of which two are new: A. cornis B aur sp.n. and A. quinarius G okhman &amp; B aur sp.n. For Anisopteromalus calandrae ( H oward), a well‐known, cosmopolitan parasitoid of stored‐product pests, we have selected a neotype to foster continuity and stability in the application of this important name. The species was sometimes confused with the related A. quinarius sp.n. , another cosmopolitan species that is frequently encountered in similar environments. We also show that several species originally described or later put under Anisopteromalus actually belong to different genera: Cyrtoptyx camerunus ( R isbec) comb.n. ; Meraporus glaber ( S zelényi) comb.n. ; Dinarmus schwenkei ( R oomi, K han &amp; K han) comb.n. Neocatolaccus indicus A yyar &amp; M ani is confirmed as a junior synonym of Oxysychus sphenopterae ( F errière) syn.n. and Anisopteromalus calandrae brasiliensis ( D omenichini) stat.rev. must be considered as a valid but doubtful taxon. This published work has been registered in ZooBank, http://zoobank.org/urn:lsid:zoobank.org:pub:BDFE96D3‐D0F4‐4012‐90F5‐9A087F7F5864 .