Ageniella Banks, 1912 is a paraphyletic group exclusive to the Nearctic and Neotropical regions. The genus has remarkable morphological diversity among species strong sexual dimorphism, hampering taxonomic studies of it. Herein, we add two new fauna Ageniella: A. caerulea sp. nov. belonging subgenus Ameragenia ruschi Priophanes; both are described illustrated. A brief discussion subgeneric char...

Two new species of the genus Geodiscelis are described: Geodiscelis nazcalinea Packer & Dumesh, sp. nov. from Peru (the first record of the genus from that country) and G. phisquiri Packer & Dumesh, sp. nov. from northern Chile. The new species are most closely related to G. longiceps, but differ primarily in having somewhat less elongate heads and in details of the male terminalia. A key to th...

Detailed phylogenetic relationships and molecular dating are still quite rare for the complex diverse genus Salix L. Here we focus on taxonomic status phylogeny of twenty-six taxa natu­rally found in Turkey using chloroplast DNA regions (trn T-F, matK, rbcL) to unravel relationship among them. The species was also checked tree constructed with data from Internal Transcribed Spacer (ITS) region ...

Sequences of the chloroplast ndhF gene and the nuclear ribosomal ITS regions are employed to reconstruct the phylogeny of Prunus (Rosaceae), and evaluate the classification schemes of this genus. The two data sets are congruent in that the genera Prunus s.l. and Maddenia form a monophyletic group, with Maddenia nested within Prunus. However, the ndhF data set is incongruent with the ITS data su...

Poa, the largest genus of grasses (Poaceae) with over 500 species, occurs throughout temperate and boreal regions in both hemispheres. A phylogenetic study of Poa based on trnT–trnF chloroplast DNA sequence data is presented focusing on basal relationships, major clades, generic boundaries, and placement of putatively closely related genera. Results support the monophyly of the main lineage of ...

The classification of the carabid subtribe Tachyina (Trechitae: Bembidiini) is reviewed in light of newly discovered diversity from Central and South America. Described herein are three new genera (Tachyxystagen. n., Stigmatachysgen. n., Nothoderisgen. n.), two new subgenera of Meotachys (Scolistichussubgen. n., Hylotachyssubgen. n.), and two new subgenera of Elaphropus (Ammotachyssubgen. n., I...

Establishing a higher classification of bees based on morphology alone can fail to capture evolutionary relationships when morphological characters either vary very little between distantly related groups, or conversely greatly closely species. This problem is well represented in the subfamily Panurginae, for which recent global revision phylogenomic data unexpectedly revealed that two Old Worl...

Three species of the Acanopsilus Kieffer, 1908, six Acanosema two Polypeza Förster, 1856, and four Psilomma 1856 Russian fauna are reviewed, keyed illustrated. Six these described: comadensis sp. n. (Russia: Primorsky krai), A. minimus (Cardiopsilus) dentigastrum (C.) epicnemium krai) setigerum East Siberia, Yakutia; Sweden), calaris Kunashir Island; Japan). The generic status Cardiopsilus 1908...