Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 98. (Budapest 2006)

Kirejtshuk, A. G.: New species of the genus Physoronia from the Far East and Kryzhanovskiella gen. n. from Australia, with taxonomic notes on the Pocadius complex (Coleoptera: Nitidulidae)

plexes should be studied in more detail and with an analysis of all body parts. The phylogenetic and cladistic models, such as the one proposed by AUDISIO & JELÍNEK (1993), can scarcely be recognized. At present the author is not ready to discuss in terms of apomorphy and plcsiomorphy the configuration of the submesocoxal line, puncturation, pubescence and so on for the groups, which appear to have a rather long and complex historical development, maintaining a way of life close to the initial one for the subfamily as a whole. At least two members of the Aethina complex, derived from the Pocadius or Thalycra complexes, were found in the limestone sediments of the Lower Cretaceous (SORIANO & KIREJTSHUK, unpublished). Diagnosis - This new genus is distinct from other genera of the Pocadius complex in the exposed male anal sclerite behind the subtruncate apex of pygidium and peculiar structure of ovipositor (although ovipositor of its members reminds of that in Hebasculinus, Hebascus and Teichostethus, while the more or less subtruncate apex of the male pygidium occurs in many representatives of Physoronia and Pocadius). The rather narrow and long penis trunk of the species of this new genus are quite characteristic and can diagnose this genus. Besides, it differs from most members of the complex in the comparatively small body size (2.3-3.1 mm) and labrum rather shortly exposed from under frons. The species of this new genus are particularly similar to some members of Physoronia (formerly regarded as subgenus Physoronia s. Str., sensu JELÍNEK, 1999) and Niliodes. However, they can be distinguished, except for different male pygidium and ovipositor, from the first also by the less elongate and smaller body with shorter elytra, maximum width of pronotum at base, clearly convergent antennái grooves (besides, in contrast to the members of Physoronia s. str. sensu JELÍNEK, 1999, the pronotal and elytral sides of the species of Kryzhanovskiella gen. n. are comparatively narrowly subexplanate), and from the latter by the more elongate body (not transversely oval) with narrower pronotum and elytra as well as with gently vaulted elytral middle, subflattened prosternai process, subhorizontal epipleura, shorter and more compact antenna! club. The species of Kryzhanovskiella gen. n. are distinct from the representatives of Atarphia in the more oval and markedly smaller body, pronotum with maximum width at base, subequal distances between pro- and mesocoxae, emarginated posterior edge of metasternum between metacoxae and structure of genitalia of both sexes. They also differ from the representatives of Hebasculinus, Hebascus and Teichostethus in the very gently sloping pronotal and elytral sides, much wider epipleura, clearly convergent antennái grooves, subequal distances between pro- and mesocoxae (mesocoxae are about as separated as procoxae, while those in Hebasculinus, Hebascus and Teichostethus are markedly more widely separated than procoxae), subtriangular and comparatively narrow (not strongly flattened) protibia, not so regularly seriate puncturation on elytra, and also from Hebascus in the apex of tegmen at most only shallowly excised. Besides, the elytra of Hebasculinus, Hebascus and Teichostethus are with more or less widely