Mediterranean species of the spittlebug genus "Philaenus" : modes of chromosome evolution

The evolution of karyotypes and sex determination system of Philaenus Stål (Auchenorrhyncha: Aphrophoridae) species is studied here in detail. The most plausible scenario of chromosomal rearrangements accompanying phylogenetic differentiation in Philaenus is advanced. It is postulated that the ancestral karyotype of Philaenus was 2n = 24 + X0. Karyotype changes occurred several times independently in the genus. The karyotype of 2n = 22 + X0 (P. spumarius and P. tesselatus) originated from 2n = 24 + X0 by fusion between two autosomal pairs. The neo—XY system (P. arslani, P. loukasi, P. signatus, P. maghresignus, and P. tarifa) also originated from the 24 + X0 karyotype by means of independent fusions between autosomes and the original X chromosome. The neo—X(1)X(2)Y system (P. italosignus) evolved from the 2n = 22 + neo—XY karyotype by an additional fusion between the Y chromosome and one more autosomal pair. The neo—X(n)Y system of P. italosignus is the first reported case of an evolutionarily fixed multiple sex chromosome system in Auchenorrhyncha

Some notes on the genera Muellerianella and Florodelphax from Greece (Homoptera: Delphacidae) with a description of Florodelphax mourikisi n. sp. from Ikaria Island

Volume: 43Start Page: 72End Page: 7

New distributional and bioacoustic data about Cicadivetta goumenissa from Peloponnese, Greece (Hemiptera, Cicadidae)

Cicadivetta goumenissa, a small singing cicada described recently by Gogala, Drosopoulos and Trilar (2012), has been previously found only around the village of Goumenissa in northern Peloponnese. We visited this area again in June 2012 and tried to determine the distribution range of this species. We found C. goumenissa in some further localities, but all within a very small area of about 15 by 25 km. We also made more than one hour of new song recordings and extended our knowledge of the song repertoire of this species

Additional new data proving that early publications on the polymorphism of the spittlebug of the genus Philaenus were lacking in systematics

Abstract In this comprehensive paper the importance of species is emphasized. It is demonstrated that careful biosystematic studies on the two species of the genus Philaenus known until recently, increased the number of species up to eight so far. These discoveries appear to be fundamental in explaining the expression, role, and evolution of polymorphism in this genus

New Records and Updated Checklist of the Pentatomoidea (Hemiptera: Heteroptera) of Greece

Eight species of the superfamily Pentatomoidea are recorded from Greece for the first time: Aelia germari Küster 1852, Eurygaster hottentotta (Fabricius 1775), Eysarcoris aeneus (Scopoli 1763), Neottiglossa lineolata (Herrich-Schaeffer 1830), Neottiglossa pusilla (Gallen 1789), Picromerus bidens (Linnaeus 1758), Podops (Podops) inunctus (Fabricius 1775) and Tarisa pallescens (Jakovlev 1871). A complete updated species checklist with distributional data notes for all the new species for Greece are provided