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Using a combination of DNA barcodes and morphology, we examine species boundaries in bees of the genus   Andrena   subgenus   Taeniandrena   in Europe. First, we solve the long controversy surrounding the status of    Andrena   ovatula    (Kirby, 1802) and    A.   albofasciata    Thomson, 1870, proposed to represent distinct species nearly 100 years ago, but mostly treated as conspecific in recent studies. Our results unambiguously support the presence of two taxa that are often found in sympatry: the first taxon, referred to as    A.   ovatula   , is present in Northern Europe but also in Southern Europe along the Mediterranean coast; the second taxon is referred to as    A.   afzeliella    (Kirby, 1802),  stat. rev. , with    A.   albofasciata    considered to be a junior synonym ( syn. nov. ), and is widely distributed in Europe. Second, we show that another widely distributed species has hitherto been overlooked in Europe:    A.   ovata    Schenck, 1853,  stat. rev.  Third, we demonstrate that two taxa currently treated as subspecies should be given specific rank due to significant morphological and genetic differences:    A.   croceiventris    Morawitz, 1871,  stat. rev. , so far treated as a subspecies of    A.   similis    Smith, 1849, and    A.   vocifera    Warncke, 1975,  stat. nov. , so far treated as a subspecies of    A.   gelriae    van der Vecht, 1927. Both    A.   croceiventris    and    A.   vocifera    have particularly restricted ranges in Europe, being known only from central to southern Italy and Sicily, and continental France, respectively. Fourth, we describe a new species from Sardinia and Corsica,    A.   antonellae    sp. nov.  Lastly, the following new synonymies are proposed:    A.   similis   ,    A.   ocreata   cyprisina    Warncke, 1975 and    A.   similis   caraimica    Osytshnjuk, 1994 are placed in synonymy with    A.   russula    Lepeletier, 1841 ( syn. nov. );    A.   fuscata    (Kirby, 1802),    A.   canescens    Schenck, 1853 and    A.   pseudovatula    Alfken, 1926 are placed in synonymy with    A.   afzeliella    ( syn. nov. ). Lectotypes are designated for    A.   afzeliella   ,    A.   fuscata    (Kirby, 1802),    A.   ovata    and    A.   wilkella    (Kirby, 1802). Our results suggest a particularly fast diversification in this group of bees, leading to the presence of numerous species exhibiting particularly restricted geographic ranges. We discuss the implications for conservation of this astonishing cryptic diversity in European bees.

journal of hymenoptera research

﻿Unexpected levels of cryptic diversity in European bees of the genus   Andrena   subgenus   Taeniandrena   (  Hymenoptera  ,   Andrenidae  ): implications for conservation

﻿Unexpected levels of cryptic diversity in European bees of the genus Andrena subgenus Taeniandrena ( Hymenoptera , Andrenidae ): implications for conservation

Unexpected levels of cryptic diversity in European bees of the genus Andrena subgenus Taeniandrena ( Hymenoptera , Andrenidae ): implications for conservation