Lasioglossum (Dialictus) magnitegula Gardner & Gibbs 2023, sp. nov.

Lasioglossum (Dialictus) magnitegula sp. nov. urn:lsid:zoobank.org:act: 7F2257A4-B961-4C86-AFEC-ED2B2ECE27A5 Figs 42–44, 76J, 78B, 79B, 80B, 113A Diagnosis Females of L. magnitegula sp. nov. have the tegula extremely large (maximum length ≥ 60% ITS and clearly exceeding posterior margin of mesoscutum in dorsal view), with inner posterior margin strongly concave and a rounded posterior projection about 1 lateral OD in size, and very densely punctate (IS <1 PD); metapostnotum very dull, finely reticulate, with fine subparallel rugae; metasomal terga apical rims shiny, glabrous, and impunctate; tomentum entirely absent on T4 disc and limited to small basolateral patches on T2–T3; mesoscutum with sparse erect pubescence less than 1 OD long (each seta about its length from the one nearest it) and very short intervening setae no more than stubble; and mesoscutum greenish, golden, or coppery, contrasting with bluer propodeum. Females of L. magnitegula sp. nov. are most similar to those of L. angelicum sp. nov., L. perparvum, and L. pseudotegulare, all of which have the T4 disc with at least some sparse tomentum and metasomal terga apical rims with at least some minute punctures and/or short simple setae. All except L. perparvum have the mesoscutum with dense erect pubescence about 1 OD long (each seta less than its length from the one nearest it) and short intervening setae with a distinct length 0.25 OD or more. In addition, females of L. angelicum have the metapostnotum with coarse anastomosing rugae and basal half usually shiny, and L. perparvum have the tegula small (not exceeding posterior margin of mesoscutum in dorsal view), with inner posterior margin straight, and sparsely punctate (IS = 1–4 PD). Males of L. magnitegula sp. nov. have the tegula extremely large (as in the female); mesoscutum usually shiny and coarsely, moderately sparsely punctate (IS = 1–2 PD), with sparse erect pubescence (some gaps 0.5 OD or wider visible in lateral view) appearing simple at 40 × magnification, and more greenish or golden, contrasting with bluer propodeum; metapostnotum tessellate to reticulate with fine subparallel rugae; T1–T2 apical rims and discs apicolaterally impunctate or very minutely, sparsely punctate; and face relatively long (length/width ratio usually>0.86). Males of L. magnitegula sp. nov. are most similar to those of L. angelicum sp. nov., L. perparvum, and L. pseudotegulare. Males of L. angelicum and L. pseudotegulare have the T1–T2 apical rims punctate, mesoscutum with dense erect, plumose pubescence (no gaps wider than 0.5 OD visible in lateral view), and mesoscutum concolourous with the rest of the mesosoma. In addition, males of L. angelicum have the face slightly shorter (length/width ratio ≤ 0.86). Males of L. perparvum have the tegula much smaller (not exceeding posterior margin of mesoscutum in dorsal view), with inner posterior margin weakly concave, and sparsely punctate laterally (IS = 1–3 PD); and mesoscutum usually tessellate and finely, densely punctate laterally (IS <1 PD). Etymology The specific epithet ʻ magnitegula ʼ is a noun derived from the Latin adjective ʻ magnus ʼ (large, great) and the noun ʻ tegula ʼ (roof tile, literally ʻcovering instrumentʼ, now applied to the sclerite covering the wing base). It refers to the extraordinarily enlarged tegula of this species relative to its small body size. An appropriate translation would be the big-tegula sweat bee. Material examined Holotype MEXICO – Sonora • ♀; Rancho El Cajón, 40 km E of Alamos; 27.05° N, 108.7318° W; elev. 420 m; 1–11 Oct. 2006; M.E. Erwin leg.; BBSL FDP746586. [Verbatim label: Mexico: Sonora: Rancho El Cajón, 40 km E Alamos / 27°03.00′N 108°43.91′W / 420m 1–11 Oct 2006 / M.E.Irwin Malaise trap / FDP 746586 / ALM 7.0_2006 // HOLOTYPE / Lasioglossum (Dialictus) magnitegula Gardner and Gibbs] Paratypes MEXICO – Baja California Sur • 1 ♂; El Pedrito beach, 3 mi. S of Todos Santos; 23.394094° N, 110.2124° W; 24 Sep. 2016; Paul A. Rude leg.; EMEC 1181137. – Guerrero • 1 ♀; 42 mi. N of Acapulco; [17.3° N, 99.7° W]; elev. 472 m; 9 Aug. 1962; University of Kansas Mexico Expedition leg.; SEMC. – Jalisco • 1 ♀; 12 km ENE of El Tuito; 20.3604° N, 105.2607° W; 6 Nov. 1987; T.L. Griswold leg.; BBSL1100811 • 1 ♂; ibid.; 6 Nov. 1987; T.L. Griswold leg.; BBSL1100810 • 1 ♀; 20 km S of Purificación; [19.54° N, 104.61° W]; 16 Jul. 1989; Charles D. Michener leg.; ex Phyla nodiflora; SEMC • 1 ♂; 22 km SE of Puerto Vallarta; [20.51° N, 105.08° W]; 29 Sep. 1985; R.J. McGinley leg.; USNM • 2 ♀♀; 8.8 km N of El Tuito; 20.3897° N, 105.3109° W; 18 Apr. 1986; F.D. Parker leg.; BBSL1100802, BBSL1100803 • 5 ♀♀; Careyes; 19.4289° N, 105.0274° W; 12 Feb.–19 Mar. 1997; F.D. Parker leg.; BBSL1100765, BBSL1100766, BBSL1100773, BBSL1100774, BBSL1100775 • 5 ♀♀; ibid.; 12 Feb.–19 Mar. 1997; F.D. Parker leg.; WRME BBSL1100742, BBSL1100744, BBSL1100745, BBSL1100755, BBSL1100759 • 1 ♀; Chamela; [19.5° N, 105.04° W]; 31 Mar. 1985; Ricardo Ayala Barajas leg.; SEMC • 1 ♀; Chamela; 19.4986° N, 105.0435° W; 1–8 Oct. 1985; T.L. Griswold, F.D. Parker leg.; BBSL1100731 • 1 ♂; Cuiztmala Playa, 8 km S of Careyes; 19.4269° N, 105.0134° W; 4 Oct. 1985; T.L. Griswold, F.D. Parker leg.; BBSL1100729 • 1 ♀; Guadalajara; [20.65° N, 103.35° W]; Crawford leg.; USNM • 1 ♀; km 157 Carretera Barra de Navidad-Puerto Vallarta; [20.225° N, 105.33° W]; 18 Apr. 1986; F.D. Parker leg.; BBSL1100812 • 2 ♀♀; Puerto Vallarta; 20.6214° N, 105.226° W; 25 Jan. 1984; G.E. Bohart leg.; BBSL1100819, BBSL1100833 • 3 ♂♂; ibid.; 25 Jan. 1984; G.E. Bohart leg.; BBSL1100814, BBSL1100839, BBSL1100841 • 3 ♂♂; ibid.; 25 Jan. 1984; George E. Bohart leg.; WRME BBSL1100813, BBSL1100835, BBSL1100838 • 1 ♀; ibid.; 7 Dec. 1986; G.E. Bohart leg.; BBSL1100789 • 3 ♀♀; Quimixto; [20.5° N, 105.37° W]; 16 Dec. 1987; G.E. Bohart leg.; BBSL1100806, BBSL1100808, BBSL1100809 • 2 ♂♂; ibid.; 16 Dec. 1987; G.E. Bohart leg.; BBSL1100805, BBSL1100807 • 2 ♀♀; Rio Chamela, Chamela; [19.527° N, 105.071° W]; elev. 10 m; 5 Apr. 1994; Ricardo Ayala Barajas leg.; ex Bacopa; SEMC SM0327594, SM0327595. – Michoacán • 1 ♀; Arroya Cupuan, S of Nueva Italia; [18.9942° N, 102.0587° W]; elev. 250 m; 1 Nov. 1987; T. Griswold leg.; BBSL1100946. – Morelos • 1 ♀, 1 ♂; 6 mi. south of Temixco; [18.77° N, 99.24° W]; 5 May 1962; L.A. Stange leg.; UCDC • 1 ♀; 7.3 mi. S of Yautepec; [18.78° N, 99.06° W]; elev. 914 m; 15 Aug. 1962; Marston, Naumann leg.; SEMC • 3 ♀♀, 1 ♂; ibid.; 16 Aug. 1962; Ellen Ordway, Naumann leg.; SEMC • 1 ♀; 8 mi. S of Yautepec; [18.76° N, 99.06° W]; 16 Aug. 1962; Roberts, Marston leg.; SEMC • 1 ♂; Cuernavaca; 18.9348° N, 99.2308° W; 27–29 Nov. 1987; F.D. Parker leg.; BBSL1101077 • 1 ♀; Sierra de Huatla, CEAMISH 2.5 km N and 4 km W of Huatla; 18.45° N, 99.033° W; elev. 1050 m; 5 Sep. 1996; R.W. Brooks leg.; ex flying around mud along a stream; SEMC SM0254429. – Nayarit • 1 ♂; San Blas area; 22.8667° N, 105.1° W; 16–21 Mar. 1983; W.J. Hanson leg.; BBSL1101031 • 2 ♀♀; San Blas La Bajada; 21.5166° N, 105.2195° W; 20–21 Mar. 1983; W.J. Hanson leg.; BBSL1101027, BBSL1101028. – Oaxaca • 1 ♀; Pochutla, San Agustinillo Playa; 15.6654° N, 96.5452° W; elev. 10 m; 28 Jan. 2012; Philippe Sagot leg.; ECOAB 44118. – Puebla • 2 ♀♀; 7 mi. N of Izúcar de Matamoros; [18.7° N, 98.47° W]; elev. 1356 m; 19 Aug. 1962; University of Kansas Mexico Expedition leg.; SEMC. – Sinaloa • 3 ♀♀; 5 mi. E of Concordia; 23.2799° N, 105.9987° W; 12 Sep. 1970; G.E. Bohart, R.M. Bohart leg.; BBSL1101014, BBSL1101015, BBSL1101016 • 2 ♀♀; San Lorenzo; [24.43° N, 107.12° W]; 11 Sep. 1970; G.E. and R.M. Bohart leg.; BBSL1100992, BBSL1100997 • 2 ♂♂; ibid.; 11 Sep. 1970; G.E. and R.M. Bohart leg.; BBSL1100993, BBSL1100994. – Sonora • 1 ♀; 30 km east of Agua Prieta; 31.31782° N, 109.2357° W; 14 Oct. 2002; R.L. Minckley leg.; RLM SBV045458 • 1 ♂; 30 km east of Agua Prieta; 31.31397° N, 109.25527° W; 10 Jun. 2004; N. de la Torre leg.; RLM SBV025693 • 1 ♂; 36 km E of Tecoripa; [28.62° N, 109.58° W]; 16 Aug. 1991; T. Griswold leg.; BBSL849287 • 1 ♂; Alamos; 27.0185° N, 108.9348° W; 7 Sep. 1970; G.E. Bohart, R.M. Bohart leg.; BBSL1100959 • 2 ♀♀; Alamos; [27.03° N, 108.94° W]; 3 Sep. 1991; T. Griswold leg.; BBSL849300, BBSL849301 • 3 ♀♀; same collection data as for holotype; BBSL FDP746163, FDP746316, FDP746386 • 2 ♀♀; same collection data as for holotype; WRME FDP746126, FDP746776 • 1 ♀; Rancho Palo Injerto, 40 km E of Alamos; 27.042° N, 108.7337° W; elev. 425 m; 30 Sep. 2006; M.E. Erwin leg.; BBSL FDP748603 • 1 ♂; Rancho San Bernardino; 31.314° N, 109.2553° W; 10 Jun. 2004; N. de la Torre leg.; RLM SBV025693 • 1 ♀; Rancho San Bernardino; 31.3178° N, 109.2357° W; 14 Oct. 2002; Robert L. Minckley leg.; RLM SBV045458 • 1 ♀; Rancho San Bernardino; 31.3186° N, 109.2508° W; 5 Sep. 2001; R.L. Minckley leg.; RLM SBV139281 • 1 ♀; Rancho San Bernardino, 28 km E of Agua Prieta; 31.33333° N, 109.25972° W; 10 Jul. 2000; K. Toal et al. leg.; RLM SBV002330. – Veracruz • 1 ♀; Estación Biología Los Tuxtlas, vic. Laguna Escondida; [18.59° N, 95.09° W]; 16 Sep. 1987; L. Carroll leg.; TAMU-ENTO X1418845. Description Female COLOURATION. Head and mesosoma blue-green to golden-green; clypeus apex black; labrum brown; mandible brown with black base and red apex; flagellum dark brown dorsally, lighter brown ventrally. Pronotal lobe black; legs black to dark brown; tegula dark brown; wing membrane lightly infuscated, veins dark brown. Metasoma black with rims of terga and sterna broadly brown. PUBESCENCE. Body pile colour white to pale yellow. Tomentum dense on pronotal collar and lobe, space between pronotal lobe and tegula, and T2–T3 basal margins; sparse on lower paraocular area and gena. Mesoscutum pubescence thin, weakly plumose. Wing setae dark, short and dense. Acarinarial fan complete, dense. T2 fringes absent, T3 fringes absent. SURFACE SCULPTURE. Clypeus shiny, with punctures dense (IS ≤ 1 PD); supraclypeal area shiny, with punctures dense (IS ≤ 1 PD); paraocular area imbricate around antenna s

Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.