Lasioglossum villosulum subsp. villosulum
Creators: name: Pauly, Alain
name: Noël, Grégoire
name: Sonet, Gontran
name: Notton, David G.
name: Boevé, Jean-Luc
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Lasioglossum
Lasioglossum villosulum
Villosulum

description: Subspecies villosulum
Synonymy
Melitta villosula Kirby, 1802: 62.
Type: 1 ♂, England (NHMUK013380582), male lectotype designated by Ebmer 1988: 649. Examined by DGN (Fig. 6).
Melitta punctulata Kirby, 1802: 66. Type: 1 ♀, England, [Kent] Barham (NHMUK013380583). Syn. by Dalla Torre 1896: 90. The holotype examined by DGN (Fig. 7), is a typical L. villosulum villosulum, small size, large sparse punctures, etc. It does not agree with the pseudocryptic species.
Halictus hirtellus Schenck, 1869: 311. Type: 1 ♀, Germany, Elberfeld near Letmathe an der Lenne, leg. Cornelius (SMF), lectotype designated by Ebmer 1975: 244; syn. by Blüthgen 1920: 278, 1930: 743. Examined by AP (Fig. 5).
Halictus pauperatulellus Strand, 1909: 44. Holotype: ♂, Algeria, Blidah-Médéah, Jul.–Aug. 1884, leg. Quedenfeldt (MNHUB). Syn. by Blüthgen 1922: 318. Examined by AP (Fig. 8).
Halictus barkensis Blüthgen, 1930: 224. Types: “ 1 ♀, 1 ♂ ”, Libya, Bengasi, 20 Aug. 1924, coll. Blüthgen (MNHUB), not examined.
Halictus villosulus perlautus Cockerell, 1938a: 82. Holotype: 1 ♂, Morocco, Asni, Aug. 1930, leg. Cockerell (NHMUK013380275). Syn. by Warncke 1973: 290. Examined by DGN.
Halictus rufotegularis Cockerell, 1938b: 7. Holotype: 1 ♀, Morocco, Ifrane, 27 Aug. 1930, leg. Alice Mackie (AMNH). Syn. by Ebmer 1976: 253 (21 March) and Warncke 1976: 95 (15 October). Examined by AP (Fig. 9).
Halictus villiersi Benoist, 1941: 80. Holotype: ♀, Morocco, Djebel Tachdirt, 2500 m, 15–31 Aug. (MNHN). Syn. by Warncke 1973: 290. Examined by AP (Fig. 10).
Remarks
Halictus hirtellus
The type of Halictus hirtellus Schenck, 1869, was examined by Blüthgen (1920: 278). Blüthgen (1930: 743) also mentions our pseudocryptic species as a form needing more research and he specifies that it is not Halictus hirtellus (“die nicht etwa hirtellus Schck ist”). Ebmer (1975) designated a lectotype from Letmathe an der Lenne (51°22′ N, 7°36′ E), a locality in Germany, that is out of the distribution of the new sub-Mediterranean pseudocryptic species L. medinai (the specimen from Germany in the cluster of L. medinai comes from a locality further south: Baden-Württemberg, Müllheim, 47°49′ N, 7°37′ E).
Halictus barkensis
Blüthgen described this species as close to L. villosulum, but with a longer head. Ebmer (1974: 188; 1976: 253) considered L. barkense as a valid species occurring in Morocco (Grand Atlas), Libya, Israel and Turkey, but Warncke (1976: 94), Ebmer (1988: 649) and Pesenko (2007a: 41) considered it a synonym of L. villosulum.
Halictus villiersi
The type of H. villiersi is relatively small (6 mm), the punctation of the scutum is relatively dense and the propodeum is relatively well wrinkled. Ebmer (1974: 188; 1976: 253) considered L. villiersi as a synonym of L. barkense (Blüthgen, 1930) but Ebmer (1988: 649) reassessed it as a synonym of L. villosulum.
Distribution
Distribution (the asterisk * means that identification of specimens from that country has been confirmed in the current study): This subspecies is distributed throughout the western Palaearctic. Described from the United Kingdom, it is known from the Azores* (Weismann et al. 2017: 82), Madeira (Fellendorf et al. 1999: 4), Canary Islands (Warncke 1975b: 205), Spain * (including the Balearics*) (Ortiz-Sanchez & Pauly 2017: 40), France * (including Corsica) (Pauly & Belval 2017: 27), Belgium *, The Netherlands *, Luxemburg *, Germany *, Denmark (Rasmussen et al. 2016: 47), Norway *, Sweden (Svensson et al. 1990: 50), Finland * (north to 64° N), Ireland *, Switzerland (Amiet et al. 2001: 150), Italy * (including Sardinia), Austria (Ebmer 1988: 649), Czech Republic and Slovakia (Pridal 2004: 40), Poland (Pesenko et al. 2000: 291), Slovenia (Gogala 1999: 19), Serbia *, Croatia *, Romania (Goaga 2003: 193), Bulgaria *, Greece * (including Crete *), Ukraine, Turkey (Warncke 1975a: 91), Israel * (Bytinsky-Salz & Ebmer 1974: 188), Russia (Levchenko 2015: 17), Udmurtia (Pesenko 2007b: 113), Iran (Ebmer 1978c: 76), Afghanistan (Ebmer 1974: 200), India (Himashal Pradesh; Ebmer 2004: 131), Nepal (Ebmer 2004: 131), Morocco * (Ebmer, 1976: 253), Algeria *, Tunisia *, Libya (Blüthgen 1930: 224), Egypt (Blüthgen 1933: 19), Yemen * (Sanaa, Jebel Jaïf). The subspecies occurs also in North America where it has been barcoded from Canada (British Columbia *) and USA (Washington State *) (Gibbs, pers. comm.).
description: Published as part of Pauly, Alain, Noël, Grégoire, Sonet, Gontran, Notton, David G. & Boevé, Jean-Luc, 2019, Integrative taxonomy resuscitates two species in the Lasioglossum villosulum complex (Kirby, 1802) (Hymenoptera: Apoidea: Halictidae), pp. 1-43 in European Journal of Taxonomy 541 on pages 14-20, DOI: 10.5852/ejt.2019.541, http://zenodo.org/record/3377625