New records of terrestrial bugs from the Maltese Islands with an updated list of Maltese Heteroptera (Insecta : Hemiptera)

Thirty-four species of Heteroptera were found from the Maltese islands during a sampling period of a week in April of 2009. Of these, seven represent new records for this territory and include the seed bugs Artheneis foveolata, Emblethis duplicatus, Engistus boops boops and Oxycarenus hyalinipennis and the plant bugs Megalodactylus macularubra, Mimocoris sp. and Phytocoris sp. The integration of the records from the last Catalogue of Maltese Heteroptera, the Catalogue of the Heteroptera of the Palaeartic Region and the present data raised the heteroptera known from the Maltese islands to 223 species accommodated in 161 genera and 26 families.peer-reviewe

The DDG^G-classifier in the functional setting

The Maximum Depth was the first attempt to use data depths instead of multivariate raw data to construct a classification rule. Recently, the DD-classifier has solved several serious limitations of the Maximum Depth classifier but some issues still remain. This paper is devoted to extending the DD-classifier in the following ways: first, to surpass the limitation of the DD-classifier when more than two groups are involved. Second to apply regular classification methods (like $k$NN, linear or quadratic classifiers, recursive partitioning,...) to DD-plots to obtain useful insights through the diagnostics of these methods. And third, to integrate different sources of information (data depths or multivariate functional data) in a unified way in the classification procedure. Besides, as the DD-classifier trick is especially useful in the functional framework, an enhanced revision of several functional data depths is done in the paper. A simulation study and applications to some classical real datasets are also provided showing the power of the new proposal.Comment: 29 pages, 6 figures, 6 tables, Supplemental R Code and Dat