We recently documented the existence of two highly distinct mitochondrial DNA (rntDNA) phylogenetic groups of Coregonus sg. in Beringia in the absence of geographic separation. Po test whether this resulted from secondary intergradation of two groups that evolved in allopatry in Eurasia and Beringia, rntDNA restriction-fragment-length pslyrnorphisms of 21 0 whitefish representing 22 populations...

Two new genera of wolf spiders belonging to Pardosinae, Gulocosa gen. n. and Melecosa gen. n., are erected to accommodate Gulocosa eskovi sp. n. (♂ ♀, Khabarovsk Province, Russia) and Sibirocosa alpina Marusik, Azarkina & Koponen, 2004, respectively. A new combination was also established: Melecosa alpina (Marusik, Azarkina & Koponen, 2004) comb. n. (ex. Sibirocosa). Polytomous and dichotomous ...

Species delimitation of geographically isolated forms is a long-standing problem in less studied insect groups. Often taxonomic decisions are based directly on morphologic variation, and lack a discussion regarding sample size and the efficiency of migration barriers or dispersal/migration capacity of the studied species. These problems are here exemplified in a water beetle complex from the Be...

The genus Cyrtopodion is the most widely distributed of the four gekkonid genera of the angular-toed geckos that inhabit Pakistan and the contiguous Palearctic Region (Szczerbak & Golubev 1996), from the Indus Valley to the eastern borders of the Caspian Sea. Longitudinal rows of trihedral tubercles characteristically line the dorsum of these angular-toed geckos. They primarily inhabit arid bad...

during a faunistic survey of natural enemies of spider mites of genus tetranychus in mashhad and vicinity, a predatory gall midge species belonging to the family cecidomyiidae was collected and identified as feltiella acarisuga vallot. f. acarisuga is one of the ten species in the genus feltiella and an important biological control agent of tetranychid mites has previously been reported from va...