Lasioglossum (Dialictus) tegulare

Lasioglossum (Dialictus) tegulare (Robertson, 1890) Figs 70–72, 83B, 85B, 98B, 101B, 118B, 117A Halictus tegularis Robertson, 1890: 318 (lectotype designated in Cresson (1928), ♀, deposited in ANSP, type no. 4254, examined). Halictus tegularis – Dalla Torre 1896: 58 (catalogue). — Cockerell 1896: 294 (comparison to pseudotegularis); 1899: 5 (catalogue). — Cresson 1928: 65 (lectotype designation). Chloralictus tegularis – Robertson 1902: 248, 249 (key). Halictus (Chloralictus) tegularis – Viereck 1916: 702, 703 (key to species), 706 (checklist). — Ellis 1914: 101 (comparison to jamaicae = gemmatum and coactus), 103 (comparison to perparvum). — Sandhouse 1924: 2 (key to species), 11 (comparison to ellisiae). Lasioglossum (Chloralictus) tegulare – Michener 1951: 1118 (catalogue). Dialictus tegularis – Mitchell 1960: 423 (key, redescription). — Hurd 1979: 1972 (catalogue). — Moure & Hurd 1987: 134 (catalogue). Lasioglossum (Dialictus) tegulare – Krombein 1967: 466 (catalogue). — Gibbs 2009a: 13 (key, redescription); 2010: 37, 45 (key), 323 (redescription); 2011: 25, 32 (key to species), 195 (review). — Wolf & Ascher 2009: 143 (checklist). — Gibbs et al. 2013: 87 (checklist). — Kilpatrick et al. 2020: 84 (checklist). Diagnosis Females of L. tegulare have the tegula relatively small (reaching but not exceeding posterior margin of mesoscutum in dorsal view), with inner posterior margin weakly concave and a narrowly rounded posterior projection smaller than 0.5 OD, and densely (IS <1 PD) to moderately densely punctate (IS = 1–2 PD); mesoscutum and mesepisternum very dull, strongly tessellate, imbricate, or rugulose; mesepisternum punctures crowded (IS = 0 PD) and indistinct; metapostnotum with strong, coarse rugae reaching posterior margin and covering propodeum dorsolateral slope, shiny in basal half; face short (length/width ratio usually ≤ 0.83); T2–T4 flat in lateral view; T3 without subapical tomentum; and head and mesosoma usually olive green. Females of L. tegulare are most similar to those of L. coactus, L. ellisiae, L. holzenthali sp. nov., and L. puteulanum. Females of L. coactus have T2–T4 convex in lateral view and T3 with dense and complete subapical band of tomentum. Females of L. ellisiae have the mesepisternum punctures distinctly separated and round, and the mesoscutum posterior half and mesepisternum often shiny. Females of L. holzenthali have the mesepisternum punctures distinctly separated (up to 1 PD) and metapostnotum rugae not extending onto propodeum dorsolateral slope. Females of L. puteulanum have the face longer (length/width ratio usually> 0.83), tegula more sparsely punctate (IS = 1–2 PD, closer to 2 PD), and head and mesosoma usually blue (rarely olive green). Males of L. tegulare have the tegula relatively small (as in the female); mesoscutum relatively coarsely and moderately densely punctate (IS = 1–2 PD); metapostnotum shiny with strong subparallel rugae; discs of T1–T2 and premarginal line uniformly densely punctate (IS ≤ 1 PD); face with sparse tomentum below eye emargination, more concentrated in paraocular area; and head and mesosoma usually olive green. Males of L. tegulare are most similar to those of L. coactus, L. ellisiae, and L. puteulanum. Males of L. coactus have the discs of T1–T3 even more densely punctate (IS <1 PD) and strongly convex, and apical rims abruptly and deeply depressed. Males of L. ellisiae have the mesoscutum usually more finely and densely punctate laterally (IS <1 PD) and disc of T2 becoming more sparsely punctate near and on premarginal line (IS = 1–2 PD). Males of L. puteulanum have the face below eye emargination evenly covered in tomentum, tegula more sparsely punctate (IS = 1–3 PD), and the head and mesosoma usually blue to blue-green. Etymology Robertson (1890) formed the specific epithet ʻ tegularis ʼ from the Latin noun ʻ tegula ʼ (roof tile, literally ʻcovering instrumentʼ, now applied to the sclerite covering the wing base), and the adjectival suffix ʻ -aris ʼ (of or pertaining to). Material examined Holotype UNITED STATES – Connecticut • ♀; New Haven; [41.31° N, 72.93° W]; 6 Jun. 1878; W.H. Patton leg.; ANSP 4254. Other material CANADA – Ontario • 1 ♀; Haldimand Norfolk Co., Nixon West; [42.85° N, 80.4° W]; 22 Jul. 1995; L. Packer leg.; PCYU-LAS:875 • 1 ♂; Caledon, Gschwendtner property; 43.8148° N, 79.9768° W; 18 Sep. 2003; J. Grixti leg.; PCYU • 1 ♀; Dunrobin; 45.4124° N, 76.0398° W; 9 Jul. 2009; J. Phillips leg.; WRME 0414013 • 1 ♀; Kinburn; 45.3775° N, 76.1277° W; 16 Jun. 2009; J. Phillips leg.; WRME 0414015 • 5 ♀♀; Norfolk; 42.6493° N, 80.5687° W; 11 Jun. 2007; PCYU • 1 ♂; Norfolk; 42.6497° N, 80.5729° W; 11 Aug. 2007; A. Taylor leg.; PCYU • 1 ♀; Toronto, Albany avenue parquette; 43.66585° N, 79.41071° W; 11 Jul. 2010; J. Gibbs leg.; PCYU-KCC-10096. – Quebec • 1 ♀, 1 ♂; CMN (Natural Heritage Campus), Gatineau; 45.4462° N, 75.8131° W; elev. 113 m; 17 Jul. 2018; T. M. Onuferko leg.; CMNC. UNITED STATES – Arkansas • 1 ♀; Garland Co., Lake Ouachita State Park; [34.617° N, 93.18° W]; May 1972; G. Heinrich leg.; SEMC • 4 ♀♀; Polk Co., Rich Mountain Fire Tower, 12.5 (air) km NW of Mena; 34.6743° N, 94.3292° W; 10 Apr. 2015; E. Riley, YPT leg.; TAMU-ENTO X1234686, X1239110, X1248045, X1289439 • 2 ♀♀; Magazine Mountain; [35.17° N, 93.64° W]; elev. 762 m; 11 Jun. 1994; W.F. Chamberlain leg.; TAMU-ENTO X1316102, X1419611. – Connecticut • 1 ♀; New London Co.; 41.547° N, 72.069° W; 1 Jun. 2002; S.W. Droege leg.; PCYU USGS-DRO 005683. – District of Columbia • 2 ♀♀; Fairfax Co.; 38.9309° N, 77.116° W; 24 Jun. 2006; Pascarella leg.; PCYU USGS-DRO 058092, 058098 • 1 ♂; Washington; 38.9463° N, 77.0344° W; 16 Jun. 2004; S.W. Droege leg.; PCYU • 1 ♂; Washington; 38.879° N, 77.0333° W; 13–14 Jul. 2004; C. Osborn leg.; PCYU • 1 ♂; Washington; 38.891° N, 77.0308° W; 15–16 Jul. 2004; C. Osborn leg.; PCYU • 1 ♂; Washington; 38.8694° N, 77.0261° W; 4–5 Oct. 2004; E. Keto leg.; PCYU • 1 ♂; Washington; 38.885° N, 77.034° W; 18–19 Oct. 2004; E. Keto leg.; PCYU • 1 ♀; Washington; 38.8871° N, 77.0128° W; 1 Sep. 2005; N.B. Staff leg.; PCYU • 1 ♀; Washington; 38.8912° N, 77.0242° W; 16 Aug. 2006; S.W. Droege leg.; PCYU. – Georgia • 1 ♂; Cobb Co., Lost Mountain; [33.94° N, 84.7° W]; 13 Jul. 1913; PCYU • 1 ♀; Floyd Co., Rome; [34.26° N, 85.16° W]; 10–16 Aug. 1988; A.L. Wharton leg.; TAMU-ENTO X1388293 • 1 ♀; Athens; [33.95° N, 83.36° W]; 16 Apr. 1977; C.W. Fisher leg.; TAMU-ENTO X1399194 • 1 ♂; Rabun Bald; [34.97° N, 83.3° W]; elev. 1219–1463 m; 21 Aug. 1913; PCYU. – Iowa • 1 ♀; Clay Co., IA Chicago and Eastern RR, 0.8 km E of Everly; 43.1603° N, 95.3086° W; elev. 410 m; 7 Aug. 2003; C. Hemsley leg.; PCYU. – Kentucky • 1 ♀; Laurel Co.; 37.1528° N, 84.1167° W; 27 Jul. 2007; S.W. Droege leg.; PCYU • 1 ♀; Wayne Co.; 36.924° N, 84.8715° W; 27 Jul. 2007; S.W. Droege leg.; PCYU USGS-DRO 081955. – Maryland • 1 ♂; Anne Arundel Co.; 38.7839° N, 76.7014° W; B. Hollister leg.; PCYU • 4 ♀♀; ibid.; B. Hollister leg.; SEMC • 1 ♀; Calvert Co.; 38.5361° N, 76.5175° W; 1–14 Jul. 2006; M. Gates leg.; PCYU USGS-DRO 067768 • 1 ♀; Caroline Co.; 39.1098° N, 75.7724° W; 7 Apr. 2005; S.W. Droege leg.; PCYU • 1 ♀; Caroline Co.; 38.9194° N, 75.8279° W; 13 May 2007; M. Price leg.; PCYU • 6 ♀♀; Prince George’s Co., Temple Hills; [38.81° N, 76.95° W]; 22 Aug. 1976; G.C. Eickwort leg.; CUIC • 1 ♀; Prince George’s Co.; 39.0815° N, 76.7887° W; 19–20 May 2003; R. Jackowski leg.; BBSL USGS-DRO 018675 • 1 ♀; Prince George’s Co.; 39.08454° N, 76.8055° W; 19–20 May 2003; R. Jackowski leg.; BBSL USGS-DRO 018765 • 1 ♀; Prince George’s Co.; 38.9123° N, 76.755° W; 12–13 Aug. 2003; Haramis and Arch leg.; BBSL USGS-DRO 013084 • 1 ♀; Prince George’s Co.; 38.9977° N, 76.7573° W; 19 Jul. 2004; S. Kolski leg.; BBSL USGS-DRO 026947 • 1 ♀; Prince George’s Co.; 39.0002° N, 76.7505° W; 19 Jul. 2004; S. Kolski leg.; BBSL USGS-DRO 026986 • 1 ♀; Prince George’s Co.; 38.9764° N, 76.7491° W; 20 Jul. 2004; S. Kolski leg.; BBSL USGS-DRO 027244 • 1 ♀; Prince George’s Co.; 39.0352° N, 76.8739° W; 21 Jul. 2004; S. Kolski leg.; BBSL USGS-DRO 027444 • 1 ♀; Prince George’s Co.; 38.9903° N, 76.7515° W; 20 Aug. 2004; S. Kolski leg.; BBSL USGS-DRO 027914 • 1 ♀; Prince George’s Co.; 38.9344° N, 76.7373° W; 17 Aug. 2002; E.J. Jackson leg.; PCYU USGS-DRO 008304 • 1 ♂; Prince George’s Co.; 38.9123° N, 76.755° W; 12–13 Aug. 2003; Haramis and Arch leg.; PCYU USGS-DRO 013026 • 1 ♀; Prince George’s Co.; 38.9959° N, 76.7886° W; 2 Sep. 2004; S. Na leg.; PCYU USGS-DRO 031553 • 1 ♀; Prince George’s Co.; 38.9949° N, 77.2527° W; 24 Jun. 2006; H. Katki leg.; PCYU USGS-DRO 058176 • 1 ♀; Talbot Co.; 38.8° N, 76.283° W; 7–8 May 2005; W. Steiner leg.; PCYU • 1 ♂; Wicomico Co.; 38.2909° N, 75.5364° W; 12 Jun. 2004; S.W. Droege leg.; PCYU • 1 ♀; Cabin John; [38.98° N, 77.16° W]; 16Apr. 1915; J. C. Crawford leg.; SEMC. – Massachusetts • 1 ♀; Middlesex Co., Dunstable, sandpit 0.1 mi. E of airport; [42.694° N, 71.547° W]; 29 Apr. 2006; M.F. Veit leg.; PCYU • 1 ♀; Middlesex Co., Harvard: Oxbow National Wildlife Refuge, Wallace Road; [42.5° N, 71.62° W]; 28 May 2006; M.F. Veit leg.; PCYU. – Michigan • 1 ♀; Ingham Co., East Lansing, MSU arboretum; 42.72° N, 84.475° W; 30 Jun. 2013; J. Gibbs leg.; WRME 0414022 • 1 ♀; Ingham Co., East Lansing, Whitehills Park; 42.753° N, 84.48° W; 4 Jul. 2013; J. Gibbs leg.; WRME • 1 ♂; Ingham Co., Lansing River Trail; 42.707° N, 84.528° W; 3 Aug. 2013; J. Gibbs leg.; WRME. – Minnesota • 1 ♀; Houston Co.; [43.7° N, 91.5° W]; 26 May 1940; C.E. Pederson leg.; UMSP _ BEE 110267. – Missouri • 1 ♀; Greene Co., Rocky Barrens Conservation Area, 1.5 mi. NE of Willard, T30 N R22 W Sec. 19 (N1/2); [37.32° N, 93.4° W]; 14 Apr. 2006; Arduser leg.; ex Lesquerella filiformis; PCYU • 3 ♀♀; Hickory Co., Pomme de Terre State Park; [37.87° N, 93.3° W]; 27 Jul. 1979; W. D. Forester leg.; ex “False Orange ” [Citrus sp.?]; TAMU-ENTO X1596629, X1596657, X1599936 • 1 ♀; Ozark Co., Caney Mountain Conservation Area, along service road (N trail), T23 N R13 W

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