00499nas a2200109 4500008004100000245010800041210006900149300001000218490000700228100002200235856013200257 2020 eng d00aA taxonomic revision of the Palaearctic members of the subgenus Lasius s.str. (Hymenoptera, Formicidae)0 ataxonomic revision of the Palaearctic members of the subgenus La a15-940 v921 aSeifert, Bernhard uhttps://formicidae-bg.myspecies.info/content/taxonomic-revision-palaearctic-members-subgenus-lasius-sstr-hymenoptera-formicidae00544nas a2200109 4500008004100000245014500041210006900186300000900255490000700264100002200271856014100293 2019 eng d00aA taxonomic revision of the members of the Camponotus lateralis species group (Hymenoptera: Formicidae) from Europe, Asia Minor and Caucasia0 ataxonomic revision of the members of the Camponotus lateralis sp a7-320 v911 aSeifert, Bernhard uhttps://formicidae-bg.myspecies.info/content/taxonomic-revision-members-camponotus-lateralis-species-group-hymenoptera-formicidae-europe00566nas a2200109 4500008004100000245014400041210006900185300000700254490000700261100002200268856016600290 2016 eng d00aInconvenient hyperdiversity – the traditional concept of “Pheidole pallidula” includes four cryptic species (Hymenoptera: Formicidae)0 aInconvenient hyperdiversity the traditional concept of Pheidole  a170 v881 aSeifert, Bernhard uhttps://formicidae-bg.myspecies.info/content/inconvenient-hyperdiversity-%E2%80%93-traditional-concept-%E2%80%9Cpheidole-pallidula%E2%80%9D-includes-four-cryptic01626nas a2200193 4500008004100000245009900041210006900140300000700209490000900216520090200225653001201127653001601139653002901155653004401184653001901228100002201247700002601269856013701295 2016 eng d00aThe Westpalaearctic Lasius paralienus complex (Hymenoptera: Formicidae) contains three species0 aWestpalaearctic Lasius paralienus complex Hymenoptera Formicidae a580 v41323 a

Application of Numeric Morphology-Based Alpha-Taxonomy (NUMOBAT) demonstrated the existence of three cryptic species within the Westpalaearctic Lasius paralienus species complex: L. paralienus Seifert, 1992, having a wider European distribution north to Sweden, L. casevitzi sp. nov., an endemic of Corsica, and Lasius bombycina sp. nov. from southeast Central Europe, the Balkans and Asia Minor. Hierarchical NC-Ward clustering and non-hierarchical NC-k-means clustering of 16 morphological characters resulted in 98.7% identical classifications within 76 examined nest samples of the three species. The classification error in 180 worker individuals was 0% in a linear discriminant analysis (LDA) and 1.3% in a LOOCV-LDA. Differential characters to other species groups and an identification key of the six European members of the Lasius alienus Förster species group are provided.

10aendemic10amorphometry10anest centroid clustering10aNumeric morphology-based alpha-taxonomy10asister species1 aSeifert, Bernhard1 aGalkowski, Christophe uhttps://formicidae-bg.myspecies.info/content/westpalaearctic-lasius-paralienus-complex-hymenoptera-formicidae-contains-three-species02944nas a2200193 4500008004100000245014000041210006900181300001000250490000800260520215100268653001802419653002902437653004402466653002302510653003002533100002202563700002002585856014502605 2015 eng d00aTemnothorax crasecundus sp. n. – a cryptic Eurocaucasian ant species (Hymenoptera, Formicidae) discovered by Nest Centroid Clustering0 aTemnothorax crasecundus sp n a cryptic Eurocaucasian ant species a37-640 v4793 a

The paper integrates two independent studies of numeric morphology-based alpha-taxonomy of the cryptic ant species Temnothorax crassispinus (Karavajev, 1926) and T. crasecundus sp. n. conducted by different investigators, using different equipment, considering different character combinations and evaluating different samples. Samples investigated included 603 individual workers from 203 nests – thereof 104 nest samples measured by Seifert and 99 by Csösz. The material originated from Europe, Asia Minor and Caucasia. There was a very strong interspecific overlap in any of the 29 shape characters recorded and subjective expert determination failed in many cases. Primary classification hypotheses were formed by the exploratory data analysis Nest Centroid (NC) clustering and corrected to final species hypotheses by an iterative linear discriminant analysis algorithm. The evaluation of Seifert’s and Csösz’s data sets arrived at fully congruent conclusions. NC-Ward and NC-K-means clustering disagreed from the final species hypothesis in only 1.9 and 1.9% of the samples in Seifert’s data set and by 1.1 and 2.1% in Csösz’s data set which is a strong argument for heterospecificity. The type series of T. crassispinus and T. crasecundus sp. n. were allocated to different clusters with p = 0.9851 and p = 0.9912 respectively. The type series of the junior synonym T. slavonicus (Seifert, 1995) was allocated to the T. crassispinus cluster with p = 0.9927. T. crasecundus sp. n. and T. crassispinus are parapatric species with a long contact zone stretching from the Peloponnisos peninsula across Bulgaria northeast to the southern Ukraine. There is no indication for occurrence of interspecifically mixed nests or intraspecific polymorphism. However, a significant reduction of interspecific morphological distance at sites with syntopic occurrence of both species indicates local hybridization. The results are discussed within the context of the Pragmatic Species Concept of Seifert (2014). The taxonomic description and a differential diagnosis of T. crasecundus sp. n. are given.

10ahybridization10aintraspecific dimorphism10aNumeric morphology-based alpha-taxonomy10aparapatric species10aPragmatic Species Concept1 aSeifert, Bernhard1 aCsősz, Sándor uhttps://formicidae-bg.myspecies.info/content/temnothorax-crasecundus-sp-n-%E2%80%93-cryptic-eurocaucasian-ant-species-hymenoptera-formicidae02077nas a2200241 4500008004100000245011100041210006900152300000900221520122300230653001701453653002001470653003001490653002501520653001801545653001301563100002001576700002201596700002201618700002001640700002001660700002001680856013501700 2013 eng d00aCryptic diversity in the Mediterranean Temnothorax lichtensteini species complex (Hymenoptera: Formicidae)0 aCryptic diversity in the Mediterranean Temnothorax lichtensteini a1-143 a

In this paper we provide insight into the cryptic diversity and biogeographic patterns of a widely distributed Mediterranean ant species, Temnothorax lichtensteini (Bondroit Annales de la Société Entomologique de France 87:1–174, 1918), based on evidence from multiple data sources. An exploratory analysis of morphometric data, combined with sequencing of a 652 bp fragment of the mitochondrial gene for
the cytochrome c oxidase subunit I (CO I), indicates the existence of three distinct lineages. Divergence of two recognised genetic lineages, Western and Eastern Mediterranean clusters, is not reliably supported by confirmatory analysis of morphological data. We hypothesise that this reflects incomplete speciation in separate glacial refugia and therefore discuss only biogeographic aspects of these two parapatric populations. However, the third, Peloponnese, lineage is divergent in both morphology and CO I sequences and its separation from the other two lineages is convincingly confirmed. For this lineage we assume a completed speciation and describe the taxon formally as Temnothorax laconicus sp.n., the sister species of T. lichtensteini.

10aBiogeography10aCryptic species10aExploratory data analysis10aIntegrative taxonomy10aMorphometrics10ataxonomy1 aCsősz, Sándor1 aSeifert, Bernhard1 aMüller, Benedikt1 aTrindl, Andreas1 aSchulz, Andreas1 aHeinze, Jürgen uhttps://formicidae-bg.myspecies.info/content/cryptic-diversity-mediterranean-temnothorax-lichtensteini-species-complex-hymenoptera