Lasioglossum (Dialictus) lilianae Gardner & Gibbs 2020, sp. nov.

Lasioglossum (Dialictus) lilianae sp. nov. urn:lsid:zoobank.org:act: D94D4513-8282-4448-9849-3DECFF4F1384 Figs 52–54, 90F, 102B Diagnosis Females of Lasioglossum lilianae sp. nov. can be recognized by the face long (length/width ratio ~0.84), scutum very shiny and finely, sparsely punctate, especially laterally (i =1–4 pd), mesepisternum densely and distinctly punctate (i <1 pd), T1 anterior surface shiny, tomentum very dense and abundant over most of the body, T2–4 with dark spiracular spots, ocelli slightly enlarged (separated by about 0.6 OD), and of relatively large size (ITD usually> 1 mm). They are most similar to L. argammon sp. nov. and L. eophilus. Females of L. argammon sp. nov. have the scutum more densely punctate laterally (i ≤ 1 pd), T1 anterior surface coriarious, and are smaller (ITD usually <1 mm). Females of L. eophilus have the mesepisternum rugose, scutum densely punctate (i ≤ 1 pd), and mesosoma with less extensive tomentum. Males of L. lilianae sp. nov. can be recognized by the same characters as for females, in addition to the clypeus usually sparsely punctate (i =1–4 pd), flagellomeres relatively short (F2 about 1.5 times as long as F1 and 1.25 times as long as broad), and S5 apical margin straight. They are most similar to L. hudsoniellum and L. arenisaltans sp. nov. Males of L. hudsoniellum have S5 apical margin straight and scutum more densely punctate (i=1–2 pd). Males of L. arenisaltans sp. nov. have the flagellomeres relatively longer (F2 about 1.75 times as long as F1 and 1.5 times as long as broad), scutum more densely punctate (i ≤ 3 pd), and mesosoma and metasoma with less extensive tomentum. Etymology The specific epithet lilianae is a dedication to Liliana Ramírez Freire, who collected many specimens from Nuevo Leon, and went above and beyond the call of duty to get them shipped to us. An appropriate translation would be Liliana’s sweat bee. Material examined Holotype MEXICO – Sonora • ♀; 30 km E of Agua Prieta; 31.3206° N, 109.2681° W; 2 Sep. 2003; A. Romero leg.; PCYU. [Verbatim label: Mexico: Sonora / 30km E Agua Prieta / 31°19’14”N 109°16’05”W / 02Sept 2003, A Romero / ex. Flyellow bowl / Quarry; road cross, SBV036702 // 1849A10 // HOLOTYPE / Lasioglossum (Dialictus) lilianae Gardner and Gibbs] Paratypes MEXICO – Chihuahua • 1 ♀; 6 km N of Samalayuca; [31.39° N, 106.48°W]; 29Aug. 1991; J.L. Neff leg.; ex Mentzelia multiflora; SEMC • 1 ♀; 8 km N of Samalayuca; [31.41° N, 106.48° W]; 29 Aug. 1991; T. Griswold leg.; ex Mentzelia multiflora; SEMC • 1 ♀; 8 km N of Samalayuca; [31.41° N, 106.48° W]; 29 Aug. 1991; T. Griswold leg.; ex Mentzelia multiflora; SEMC • 1 ♀; 6 km N of Samalayuca; [31.39° N, 106.48° W]; 29 Aug. 1991; J.L. Neff leg.; ex Mentzelia multiflora; SEMC. – Coahuila • 1 ♀; Gypsum dunes, 20 km S of Cuatrocienégas; [26.82° N, 102.15° W]; 16 Feb. 2000; R.L. Minckley leg.; RLM. – Nuevo Leon • 1 ♀; Camio al Espinazo, Mina; [26.2° N, 101.1° W]; 703 m a.s.l.; 4 Oct. 2009; L. RamírezFreire leg.; LRF • 13 ♀♀; Exhacienda del Muerto, Mina; [25.966° N, 100.647° W]; 632 m a.s.l.; 25 Jul. 2009; L. Ramírez-Freire leg.; LRF. – Sonora • 1 ♀; 30 km E of Agua Prieta; 31.32° N, 109.2717° W; 4 Sep. 2000; R. Minckley leg.; ex Mentzelia aspera; PCYU • 1 ♂; Municipio de Agua Prieta, Rancho Las Anitas, Shrub Site 4; 31.31389° N, 109.31417° W; 11 Aug. 2007; RLM • 1 ♀; Rancho Puerta Blanca, along road after main gate; [31.31° N, 109.1° W]; 14 Apr. 2007; ex Mentzelia pumila; RLM • 1 ♀; Rancho San Bernardino, Agua Verde; 31.33068° N, 109.21° W; 28 Jul. 2004; ex Malvaceae sp.?; RLM • 1 ♀; Rancho San Bernardino, quarry, along Arroyo Grande; 31.3196° N, 109.27028° W; 27 May 2004; RLM • 1 ♀; Rancho San Bernardino, quarry, at road crossing; 31.32042° N, 109.2681° W; 2 Sep. 2003; RLM • 1 ♀; Rancho San Bernardino, quarry, general area; 31.3195° N, 109.27028° W; 17 Aug. 2001; ex Mentzelia aspera; RLM • 2 ♀♀; same location as for preceding; 14 Apr. 2002; ex Mentzelia pumila; RLM • 1 ♀; same location as for preceding; 27 May 2004; RLM • 4 ♀♀; same location as for preceding; 13 Aug. 2007; ex Mentzelia pumila; RLM • 5 ♀♀; Rancho San Bernardino, quarry, Tai Site 1; 31.3194° N, 109.27142° W; 2 Sep. 2003; RLM. UNITED STATES – Arizona • 9 ♀♀; Cochise Co., 3.2 km E of Apache; [31.69° N, 109.1° W]; 26 Jun. 1987; B.N. Danforth leg.; ex Mentzelia; SEMC • 1 ♂; Cochise Co., Railroad Ave., 2 mi. SW of Willcox; 32.2172° N, 109.8544° W; 1275 m a.s.l.; 31 Jul. 2005; D. Yanega leg.; ex? Lepidium; UCRC • 1 ♀; Cochise Co., San Bernardino NWR; [31.34° N, 109.26° W]; 9 Jun. 2002; R.L. Minckley leg.; RLM • 1 ♀; Cochise Co., San Bernardino NWR, field, nr Bathroom, Bee Diversity; 31.3411° N, 109.27048° W; 19 Jun. 2002; RLM • 2 ♀♀; Cochise Co., San Bernardino NWR, Mesa de la Avanzada, Bee diversity; 31.34147° N, 109.27278° W; 19 Jun. 2002; RLM • 1 ♀; Cochise Co., San Bernardino NWR, Shrub, nr Bathroom, Bee Diversity; 31.34052° N, 109.27165° W; 19 Jun. 2002; RLM. – California • 1 ♀; Tulare Co., Jackson Meadow; [37.495° N, 118.97° W]; 27 Jun. 2000; J.S. Ascher leg.; AMNH. – Colorado • 2 ♀♀; Bent Co., Caddoa; [38.048° N, 102.97° W]; 2 Aug. 1957; C.D. Michener leg.; ex Mentzelia; SEMC • 1 ♂; Las Animas Co., Model; 37.4702° N, 103.9712° W; 9 Jul. 2009; J. Newton leg.; PCYU. – New Mexico • 1 ♂; Lincoln Co., 22 mi. NNE of Carrizozo; 33.8461° N, 105.7825° W; 1730 m a.s.l.; 16 Sep. 1999; R. Brooks and C. Michener leg.; ex Grindelia squarrosa; SEMC • 2 ♀♀, 1 ♂; Socorro Co., Sevilleta NWR; [34.3° N, 106.8° W]; 17 Jun.–1 Jul. 2003; K. Wetherill leg.; PCYU • 1 ♀; same location as for preceding; 12–26 Jul. 2005; K. Wetherill leg.; PCYU • 1 ♀; same location as for preceding; 10–24 Sep. 2002; K. Wetherill leg.; PCYU • 1 ♀; same location as for preceding; 26 Jul. 2001; K. Wetherill leg.; PCYU • 1 ♀; same location as for preceding; 5–19 Oct. 2004; K. Wetherill leg.; PCYU • 1 ♂; same location as for preceding; 18 Jun.–2 Jul. 2002; K. Wetherill leg.; PCYU • 1 ♂; same location as for preceding; 15–29 Jul. 2003; K. Wetherill leg.; PCYU • 1 ♀; Torrance Co., Town of Gran Quivira; [34.27° N, 106.1° W]; 9 Aug. 1965; Hugh B. Leech leg.; CAS • 2 ♀♀; Santa Fe; [35.69° N, 105.94° W]; 19 Jul. 1952; R.H. and L.D. Beamer, LaBerge and C. Liang leg.; SEMC. – Texas • 1 ♀; Mitchell Co., Lake Colorado St. Park; [32.33° N, 100.93° W]; 26 Jul. 1976; ex Mentzelia nuda; LACM • 2 ♀♀; Mitchell Co., Tex. Rd. 670; [32.3° N, 101.0075° W]; 27 Jul. 1976; ex Mentzelia nuda; LACM • 1 ♀; Ward Co., 5.5 mi. E of Monahans; 31.605° N, 102.845° W; 15 Jun. 2005; J. Neff and A. Hook leg.; ex Mentzelia strictissima; PCYU • 1 ♂; same location as for preceding; 15 Jun. 2005; J. Neff and A. Hook leg.; ex Mentzelia strictissima; PCYU. – Utah • 1 ♀; Emery Co., South Temple Wash, San Rafael Reef; [38.65° N, 110.67° W]; 1615 m a.s.l.; 4 Jun. 1984; F.D. and A. Parker leg.; BBSL • 1 ♀; same location as for preceding; 4 Jun. 1984; F.D. and A. Parker leg.; CUIC • 1 ♀; Emery Co., Wild Horse Creek N of Goblin Valley; [38.57° N, 110.82° W]; 1494 m a.s.l.; 25–28 Jul. 1983; Parker and Griswold leg.; BBSL. Description Female COLOURATION. Head and mesosoma blue-green; clypeus apical colour reddish brown to orange; labrum orange; mandible orange with black basal spot and red tip; flagellum reddish brown dorsally, orange ventrally; pronotal lobe orange; metasoma orange with discs of T3–4 red to dark brown and dark spiracular spots on T2–4; legs orange with coxae, trochanters, and femora reddish brown; tegula pale amber; wing membrane hyaline, veins pale amber to brown. PUBESCENCE. Body hair colour white. Tomentum dense on paraocular area, frons, vertex, gena, pronotal collar and lobe, space between pronotal lobe and tegula, scutum lateral and posterior margins, metanotum medially, hypoepimeron, metepisternum, T1 laterally, T2–3 basolaterally, and T4 throughout; sparse on preëpisternum and mesepisternum. Scutum hair thin to moderately plumose. Wing hairs light, long or short, and dense. Acarinarial fan complete, sparse. T2 fringes sparse, T3 fringes sparse. SURFACE SCULPTURE. Clypeus punctures large, irregularly sparse (i <3 pd), interspersed with scattered minute punctures, sculpture shiny; supraclypeal area punctures dense (i ≤ 1 pd), somewhat sparser medially (i= 1–2 pd), sculpture shiny; paraocular area punctures dense (i <1 pd), sculpture imbricate around antenna socket, otherwise shiny; frons punctures dense (i <1 pd), sculpture shiny; vertex punctures fine, moderately dense laterally (i =1–2 pd), sparse medially (i=1–4 pd), sculpture shiny; gena punctures fine, moderately dense (i=1–2 pd), sculpture shiny; postgena sculpture shiny, weakly imbricate laterad of hypostomal carina; tegula punctures absent; scutum punctures moderately dense (i =1–2 pd), becoming sparse submedially and anteriorly (i=1–4 pd), sometimes minute, sculpture shiny, sometimes becoming weakly tessellate anteromedially; scutellum punctures dense marginally and on median line (i <1 pd), sometimes finer and sparser anteriorly (i=1–2 pd), sparse submedially (i =1–3 pd), diversopunctate, sculpture shiny; metanotum sculpture shiny and finely, densely punctate (i <1 pd), becoming weakly rugulose laterally; metapostnotum rugae strong or weak, anastomosing, not reaching margin, sculpture tessellate; preëpisternum sculpture areolate-rugulose; hypoepimeron punctures dense (i ≤ 1 pd) to crowded (i=0 pd), sculpture shiny; mesepisternum punctures dense (i <1 pd) to crowded (i =0 pd), sculpture shiny; metepisternum sculpture ruguloso-lineate dorsally, imbricate ventrally; propodeum lateral face sculpture tessellate; propodeum posterior face sculpture tessellate; T1 anterior face sculpture shiny; T1 dorsal surface punctures moderately sparse (i=1–3 pd), absent or very sparse in large apicolateral oval patches, sculpture shiny; T2 disc punctures moderately sparse (i=1–3 pd), disc sculpture shiny, rim punctures sparse (i=1–4 pd), rim sculpture shiny. STRUCTURE. Face length/width ratio 0.84 (± 0.03 SD). Clypeus projecting ~67% below suborbital

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