Click on map for details about points. IDnature guides Bee species Lasioglossum Lasioglossum Dialictus female Lasioglossum Dialictus male Identification Extracted by Gibbs J., 2011. Revision of the metallic Lassioglossum (Dialictus) of the eastern North American (Hymenoptera: Halictidae: Halictini). Zootaxa. Holotype. USA: SOUTH CAROLINA: Chesterfield Co., N34.5789 W080.2334, 18.v.2006 (S.W. Droege); [PCYU]. Diagnosis. Female L. batya can be recognised by the following diagnostic combination: head elongate (length/width ratio = 1.03–1.07), clypeus and supraclypeal area flat and polished (Fig. 69B), mesoscutal punctation dense (i Male L. batya can be recognised by the following diagnostic combination: clypeus yellow distally (Fig. 70B), supraclypeal area polished, flagellomeres short (F2–F10 length/width ratio = 1.13–1.18), mesoscutal punctures contiguous (Fig. 72), and metasomal terga with apical impressed areas deeply and distinctly punctate. They are most similar to L. raleighense, which has the supraclypeal area imbricate and dull. Description. FEMALE. Length 4.38–4.96 mm; head length 1.44–1.49 mm; head width 1.39–1.42 mm; forewing length 3.12–3.15 mm. Colouration. Head and mesosoma pale green to bluish green. Clypeus with apical half reddish brown. Supraclypeal area bronze. Antenna dark brown, flagellum with ventral surface reddish brown to orange-yellow. Tegula amber. Wings faintly dusky, venation and pterostigma reddish brown. Legs brown, except medio- and distitarsi reddish brown. Metasomal terga golden brown with narrow reddish rim, sterna brown, apical margins pale, translucent yellow. Pubescence. Dull white. Head and mesosoma with moderately dense woolly hairs (1–1.5 OD), longest on genal beard, metanotum, and mesopleuron (2–2.5 OD). Paraocular area and gena with subappressed tomentum partially obscuring surface. Propodeum with moderately dense plumose hairs on lateral and posterior surfaces (2–2.5 OD). Metasomal terga with moderately dense, fine hairs. T1 acarinarial fan complete. T1 dorsolateral portion with sparse tomentum. T2–T3 laterally and T4 entirely with sparse tomentum not obscuring surface. T2 apicolateral and T3–T4 apical margins with sparse fringes. Surface sculpture. Face tessellate-imbricate, punctation fine. Clypeus polished, imbricate basally, punctation evenly spaced (i=1–2d). Supraclypeal area polished distally, punctation moderately sparse (i=1–3d). Lower paraocular and antennocular areas with punctation dense (i ≤ d). Upper paraocular area, frons and ocellocular area punctate-reticulate. Gena and postgena lineolate. Mesoscutum and mesoscutellum tessellate, punctation dense throughout(i ≤d). Axilla punctate-reticulate. Metanotum imbricate. Preëpisternum rugose. Hypoepimeral area reticulate-rugulose. Mesepisternum reticulate-rugulose, weakly rugulose posteriorly. Metepisternum with dorsal half rugoso-carinulate, ventral half imbricate. Metapostnotum with weak rugae poorly defined amidst tessellate interstices, posterior margin tessellate-granular. Propodeum with dorsolateral slope tessellate, lateral surface and posterior rugulose-imbricate. Metasomal terga polished, apical impressed areas weakly coriarious, punctation dense and distinct throughout (i=1–1.5d). Structure. Head elongate (length/width ratio = 1.03–1.07). Eyes strongly convergent below (UOD/LOD ratio = 1.44– 1.48). Clypeus 1⁄2 below suborbital tangent, apicolateral margins weakly convergent. Antennal sockets close (IAD/OAD < 0.5). Frontal line carinate, ending 2OD below median ocellus. Gena narrower than eye. Inner metatibial spur pectinate with 4 branches. Metapostnotum truncate (MMR ratio = 1.30–1.42), lateral margin distinct, posterior margin weakly angled onto posterior surface. Propodeum with oblique carina fine, lateral carina not reaching dorsal margin. MALE. Similar to female except for the usual secondary sexual characters and as follows. Length 4.17 mm; head length 1.39 mm; head width 1.30 mm; forewing length 2.90 mm. Colouration. Labrum, mandible and distal margin of clypeus brownish yellow. Flagellum with ventral surface brownish yellow. Legs brown, except tibial bases and apices and tarsi brownish yellow. Pubescence. Paraocular area below eye emargination with tomentum obscuring surface. S2–S4 with moderately elongate woolly hairs (1.5–2 OD). Surface sculpture. Clypeus and supraclypeal area polished, punctation moderately dense (i=1–1.5d). Mesepisternum reticulate-punctate dorsally. T1 anterior surface with minute punctures closely spaced ventrally (i=1–2d), larger and sparser punctures subdorsally (i=2–4d). Structure. Head elongate (length/width ratio = 1.07). Eyes strongly convergent below (UOD/LOD ratio = 1.67). Clypeus 2/3 below suborbital tangent, apicolateral margins subparallel. Antennal sockets distant (IAD/OAD = 1.0). Frontal line carinate, ending 2 OD below median ocellus. Pedicel subequal to F1. F2 length 1.0X F1. F2–F10 short (length/ width ratio = 0.90–1.18). Metapostnotum moderately truncate (MMR ratio = 1.50), posterior margin rounded onto posterior surface. Terminalia. S7 with median lobe clavate, apex rounded (Fig. 73). S8 with apicomedial margin weakly convex (Fig. 73). Genital capsule as in Fig. 73. Gonobase with ventral arms narrowly separated. Volsella short, nearly round. Gonostylus small, dorsal setae elongate. Retrorse lobe elongate, attenuated apically. Names Scientific source: Discover Life bee species guide and world checklist, Ascher and Pickering. Supported by National Biological Information Infrastructure National Science Foundation go to Discover Life's Facebook group Updated: 2024-04-28 22:23:28 gmt Discover Life | Top © Designed by The Polistes Corporation