Lasioglossum (Capalictus), 2012

Pauly, Alain, Gibbs, Jason & Kuhlmann, Michael, 2012, Capalictus, a new subgenus of Lasioglossum Curtis, 1833 from South Africa, with description of three new species (Hymenoptera, Apoidea, Halictidae), European Journal of Taxonomy 28, pp. 1-28 : 18-26

publication ID	https://doi.org/ 10.5852/ejt.2012.28
DOI	https://doi.org/10.5281/zenodo.3859042
persistent identifier	https://treatment.plazi.org/id/202A006B-FF8C-A21E-FDA0-EEF0FE097CE4
treatment provided by	Valdenar
scientific name	Lasioglossum (Capalictus)
status

Treatment

Lasioglossum (Capalictus) sp. 2

Material

All ♀♀: 2 ♀♀ ( CUIC) (metasoma black), SOUTH AFRICA, Western Cape Province ( WCP), Kunje Farm, 760 m, 28 km SSE Citrusdal, 32°40.35’S 19°12.67’E, 23-25 Sep. 2001; 2 ♀♀ ( CUIC) (metasoma red), WCP, Kunje Farm, 760 m, 28 km SSE Citrusdal, 32°40.35’S 19°12.67’E, 23-25 Sep. 2001; 4 ♀♀ ( CUIC) (2 females Voucher 01-54) (metasoma black), WCP, 21 km N Hermanus, 157 m, 34°17.82’S 19°07.71’E, 28 Sep. 2001; 1 ♀ (Voucher O1-45) ( CUIC) (metasoma red), WCP, Cape Agulhas, 34°49.92’S 20°00.14’E, 27 Sep. 2001; 1 ♀ ( CUIC) (metasoma black), WCP, Betty’s Bay, botanical garden, 27 m, 34°21.14’S 18°55.62’E, 28 Sep. 2001.

Specimens from Hermanus (4 ♀♀ including Voucher 01-54) are similar in size and colour to L. tigrinum sp. nov., but their tergum 1 is nearly impunctate on the disc, punctures of the mesoscutum are larger and sparser, punctures on the face are stronger.

Specimens with black metasoma from Kunje Farm (2 ♀♀) and Betty’s Bay (1 ♀) are similar in size and colour to L. hantamense sp. nov. but punctures of the mesoscutum are stronger.

The specimen from Cape Agulhas (1 ♀, Voucher 01-45) is similar to L. timmermanni sp. nov. by its colouration (metasoma red, including last terga) and shagreened propodeum.

Specimens from Kunje Farm with red metasoma (2 ♀♀) are similar to L. timmermanni sp. nov. by red metasoma and shagreened propodeum, but differs by black last terga. They are smaller in size than the specimen from Cape Agulhas.

Key to species

Males

1. Tibiae of middle and posterior legs yellowish orange (except for a central dark maculation) ( Figs 12D View Fig , 13D View Fig , 14 View Fig G-H); apical impressed area of terga largely amber translucent ( Fig. 6D View Fig ) ………………………………………………………………… L. (Capalictus) tigrinum sp. nov.

– Tibiae of middle and posterior legs dark; apical impressed area of terga black, rarely amber, apical rim slightly straw-coloured ……………………………………………………………………… (2)

2. All tarsi pale yellow ( Figs 12C View Fig , 13C View Fig , 14 View Fig E-F); gonostylus with short setae, length less than ¼ basal gonostylus width ( Fig. 15C View Fig ) …………………………………… L (Capalictus) hantamense sp. nov.

– Tarsi of middle and posterior legs dark ( Fig. 14 View Fig A-D); gonostylus with long setae, length subequal to or longer than basal gonostylus width ( Fig. 15 View Fig A-B) ……………………………………………… (3)

3. Foretarsi black ( Fig. 13B View Fig ); punctation of mesoscutum denser (i = 1–1.5d) ( Fig. 8B View Fig ); dorso-lateral slope of propodeum with microtesselate dull surface ( Fig. 8c View Fig ) ……………………………………… ……………………………………………………………… L. (Capalictus) timmermanni sp. nov.

– Foretarsi yellowish ( Fig. 13A View Fig ); punctation of mesoscutum sparser (i = 3–4d) ( Fig. 3B View Fig ); dorso-lateral slope of propodeum shining ( Fig. 3C View Fig ) ………… L. (Capalictus) mosselinum ( Cockerell, 1945) View in CoL Females

1. Metasoma largely red ( Fig. 10A, C View Fig ) ……………………………………………………………… (2) – Metasoma black, apical margins pale ( Fig. 11A, C View Fig ) ……………………………………………… (3)

2. Terga 5–6 largely red ( Fig. 16F View Fig ); dorso-lateral slopes of propodeum shagreened ( Fig. 9C, D View Fig ); ridges of metapostnotum short and anastomosing ( Fig. 9C, D View Fig ; also Fig. 7 View Fig in Pauly et al. 2008) ……………………………………………………………… L. (Capalictus) timmermanni sp. nov.

– Terga 5–6 blackish ( Fig. 16E View Fig ); dorso-lateral slopes of propodeum shining ( Fig. 2D View Fig ); ridges of metapostnotum more linear ( Fig. 2D View Fig , also Fig. 6 View Fig in Pauly et al. 2008)……………… ……………………………………………………… L. (Capalictus) mosselinum ( Cockerell, 1945)

3. Smaller body size (length 6-6.5 mm); T1 nearly impunctate on disc, punctures very weak and superficial, apical margin with fine punctures ( Fig. 5D, E View Fig )…… L. (Capalictus) hantamense sp. nov.

– Larger body size (length 7 mm); T1 with distinct punctuation on disc as well as on apical margin ( Fig. 7D, E View Fig ) ...……………………………………………………… L. (Capalictus) tigrinum sp. nov.

Molecular results

DNA sequence data from five specimens of Lasioglossum (Capalictus) (1 specimen of L. hantamense sp. nov., 2 of L. tigrinum sp. nov., and 2 of L. aff. tigrinum (n°01-54) includes putatively fixed characters suggestive of species-level differentiation. A total of 1934 bp was sequenced for all five specimens (EF1-α: 951 bp, wnt-1: 457 bp, and opsin: 525 bp). Lasioglossum hantamense sp. nov. differed from L. tigrinum sp. nov. by 7 nucleotide substitutions (3 in EF-1α, 1 in wnt-1, and 3 in opsin) and from L. aff. tigrinum by 9 nucleotide substitutions (5 in EF-1α and 4 in opsin). Lasioglossum tigrinum sp. nov. differed from L. aff. tigrinum by 10 nucleotide substitutions (4 in EF-1α, 1 in wnt-1, and 5 in opsin). Only one variable nucleotide position was found within L. aff. tigrinum (in EF-1α) and 2 were found in L. tigrinum sp. nov. (1 each in EF-1α and opsin). The levels of genetic differentiation in EF-1α are consistent with those discovered between other closely related bee species ( Danforth et al. 1999; Kuhlmann et al. 2007).