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Lasioglossum inconditum (Cockerell, 1916)
Halictus inconditus Cockerell, 1916; Evylaeus inconditus (Cockerell, 1916); Halictus tracyi Cockerell, 1936; Lasioglossum (Evylaeus) tracyi (Cockerell, 1936); Evylaeus tracyi (Cockerell, 1936); Lasioglossum (Dialictus) tracyi (Cockerell, 1936); Lasioglossum (Dialictus) inconditum (Cockerell, 1916); Evylaeus rufitarsis_homonym Auct, misidentification

Life   Insecta   Hymenoptera   Apoidea   Halictidae   Lasioglossum
Subgenus: Hemihalictus

Lasioglossum inconditum, F, face, WY, Lincoln County
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Lasioglossum inconditum, F, face, WY, Lincoln County

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Lasioglossum inconditum, M, Back, WY, Lincoln County
© Copyright source/photographer · 5
Lasioglossum inconditum, M, Back, WY, Lincoln County
Lasioglossum inconditum, M, Face, WY, Lincoln County
© Copyright source/photographer · 5
Lasioglossum inconditum, M, Face, WY, Lincoln County

Lasioglossum inconditum, M, Side, WY, Lincoln County
© Copyright source/photographer · 5
Lasioglossum inconditum, M, Side, WY, Lincoln County
Lasioglossum inconditum, F, back, WY, Lincoln County
© Copyright source/photographer · 5
Lasioglossum inconditum, F, back, WY, Lincoln County
Identification
Extracted from: Gibbs, J., Packer, L., Dumesh, S. and Danforth, B. N. 2013. Revision and reclassification of Lasioglossum (Evylaeus), L. (Hemihalictus) and L. (Sphecodogastra) in eastern North America (Hymenoptera: Apoidea: Halicidae). Zootaxa 3672 (1). Pp 1-116.

Diagnosis. Both sexes of L. inconditum can be recognised by the combination of head long (L/W ratio = 1.03– 1.11) (Figs. 4D, 6D); mesepisternum finely rugulose (Fig. 76A); metapostnotal rugae reaching the sharply edged posterior margin of dorsal surface (Fig. 82C); and lateral propodeal carina not extending to dorsal surface. Lasioglossum inconditum can be easily distinguished from most species, except L. foxii. Both sexes of L. foxii have metapostnotal rugae not reaching the smoothly rounded posterior margin (Fig. 82B).

Lasioglossum in the fulvicorne-fratellum species-group (Ebmer 1995, 2002; Pesenko 2007a) are superficially similar to L. inconditum but can usually be distinguished by possession of complete lateral propodeal carinae (Figs. 79D-79F), except some L. boreale (Fig. 79C). Males of the fulvicorne-fratellum species-group can be distinguished by yellow metabasitarsi (Figs. 54, 57, 66, and 69), shorter gonostyli, and distinctively shaped retrorse lobes (Fig. 87; see diagnoses below for L. boreale, L. comagenense, L. quebecense, and L. seillean).

Redescription. FEMALE. Length 5.9–6.7 mm. Head length 1.69–1.80 mm. Head width 1.60–1.70 mm. Wing length 4.6–5.1 mm. (n=5)

Colour. Head and mesosoma black. Antenna black, except ventral surface of flagellum reddish brown. Tegula dark reddish brown. Legs dark brown, except medio- and distitarsi reddish brown. Wing membrane hyaline, faintly dusky. Pterostigma amber. Metasomal terga black-brown, apical margins pale brown.

Structure. Head long (L/W ratio = 1.03–1.06). Clypeus ¾ below suborbital line. Eyes convergent below (UOD:LOD = 1.14–1.22). Gena narrower than eye. Ocelli normal. Pronotum smoothly rounded. Protibial spur with serrations as long as width of malus. Inner metatibial spur pectinate, teeth 4–8, basal teeth subequal to width of rachis. Propodeal lateral carina not reaching dorsal margin, oblique carina absent.

Surface sculpture. Supraclypeal area polished medially, punctures sparse (i=1–2d). Gena lineolate, postgena polished-weakly imbricate. Mesoscutum imbricate, polished posteromedially; punctures dense laterally (i≤d), separated between parapsidal lines (i=1–1.5d). Mesepisternum finely rugulose, imbricate ventrally. Metapostnotum anastomosingly rugose throughout, posterior margin sharply angled. Propodeum lateral surface weakly ruguloseimbricate, posterior surface tessellate. Metasomal terga polished-weakly coriarious; punctures fine, dense basally, obscure apically.

Pubescence. Head and mesosoma with sparse plumose hairs. Metafemoral scopa with dense plumose hairs. Propodeum with sparse plumose hairs. Metasomal terga with apical fimbriae very sparse. T1 with sparse, erect plumose hairs. Metasomal sterna with plumose scopa.

MALE. Length 5.8–6.4 mm. Head length 1.72–1.74 mm. Head width 1.55–1.58 mm. Wing length 4.2–4.3 mm. (n=3)

Colour. Head and mesosoma black. Clypeus yellow distally. Mandible brown. Labrum brown. Antenna black, except ventral surface of flagellum orange. Legs dark brown, except tarsi reddish brown. Wing membrane hyaline. Pterostigma pale brown. Metasomal terga dark brown, apical margin reddish brown.

Structure. Head long (L/W ratio = 1.10–1.11). Mandible short, reaching opposing clypeal angle. Flagellomeres, except F1 elongate, F2 longer than F1 and pedicel combined, subequal to scape. Eyes strongly convergent below (UOD:LOD = 1.43–1.50). Gena narrower than eye. Pronotum smoothly rounded. Propodeal lateral carina reaching less than half distance to dorsolateral slope.

Surface sculpture. Supraclypeal area polished medially, punctures relatively dense (i≤d). Gena lineolate, postgena polished distally. Mesoscutum weakly imbricate, polished posteromedially; punctures dense laterally (i≤d), distinctly separated between parapsidal lines (i=1–2d). Mesepisternum weakly rugulose, imbricate ventrally. Metapostnotum anastomosingly rugose, posterior margin sharply angled. Propodeum weakly rugulose laterally, posterior surface rugulose. Metasomal terga polished; punctures deep, close basally. T1–T6 apical impressed areas impunctate.

Pubescence. Head and mesosoma with sparse plumose hairs. Paraocular area below eye emargination with dense tomentum. Propodeum largely bare, with scattered plumose hairs. Metasomal terga nearly bare, apical fimbriae absent. Metasomal sterna with sparse, plumose hairs (1.5–2.5 OD).


Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Asteraceae  Achillea millefolium @ RMBL_ENT (1)

Agoseris glauca @ RMBL_ENT (2)

Centaurea cyanus @ CUIC_ENT (1)

Chrysothamnus parryi @ RMBL_ENT (1)

Erigeron speciosus @ RMBL_ENT (4)

Heliomeris multiflora @ RMBL_ENT (3)

Symphyotrichum ascendens @ RMBL_ENT (2)

Taraxacum campylodes @ CUIC_ENT (1); RMBL_ENT (7)
Brassicaceae  Barbarea vulgaris @ CUIC_ENT (2)

Thlaspi arvense @ RMBL_ENT (1)
Fabaceae  Melilotus officinalis @ CUIC_ENT (2)
Geraniaceae  Geranium richardsonii @ RMBL_ENT (5)
Linaceae  Linum lewisii @ RMBL_ENT (1)
Rosaceae  Fragaria virginiana @ RMBL_ENT (7)

Pentaphylloides floribunda @ RMBL_ENT (1)

Potentilla gracilis @ RMBL_ENT (6)

Rubus @ CUIC_ENT (2)

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Updated: 2024-06-17 03:25:47 gmt
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