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

Lasioglossum (Dialictus) holzenthali sp. nov. urn:lsid:zoobank.org:act: 67961059-A459-4E63-9B7A-E519683BBCCA Figs 33–35, 76H, 81B, 95A, 96A, 97A, 102A, 116A Diagnosis Females of L. holzenthali sp. nov. have the tegula very small (maximum length ≤ 45% ITS and not reaching posterior margin of mesoscutum in dorsal view), with inner posterior margin straight or very weakly concave, and usually sparsely punctate (IS = 1–4 PD); postgena smooth, shiny to imbricate; metapostnotum shiny with coarse subparallel rugae; mesepisternum very dull, strongly imbricate, with punctures dense but usually distinctly separated (IS ≤1 PD); T1–T3 apical rims usually distinctly punctate with very little change in sculpture across premarginal line; metasomal terga largely lacking tomentum (T2–T3 with very small basolateral patches and T4 with very sparse tomentum), and mesoscutum with dense erect pubescence (each seta less than its length from the one nearest it) and intervening setae short but with distinct length 0.25 OD or more. Females of L. holzenthali sp. nov. are most similar to those of L. eremum sp. nov., L. perparvum, and L. profundum sp. nov. Females of L. perparvum and L. profundum have the T1–T3 apical rims more sparsely or indistinctly punctate than discs or impunctate. Females of L. eremum have the mesoscutum and mesepisternum usually shiny and metapostnotum rugose with strong anastomosing rugae. Females of L. perparvum also have the metapostnotum dull with fine rugae and mesoscutum with sparse erect pubescence (each seta separated by about its length from the one nearest it) and intervening setae no more than stubble. Females of L. profundum have the tegula entirely impunctate (except anterior margin) and metasomal terga with more extensive tomentum. Males of L. holzenthali sp. nov. have the tegula relatively small (as in the female, but more often densely punctate (IS ≤ 1 PD)); T1–T3 uniformly densely punctate (IS ≤ 1 PD) with no change in sculpture across premarginal line; metapostnotum shiny with strong parallel rugae; and face below eye emargination with dense tomentum limited to lower paraocular area, sparse elsewhere. The densely punctate apical rims of T1–T3 are unique within the L. gemmatum species complex and will readily separate male L. holzenthali from other known species. Males of L. angelicum sp. nov., L. helianthi, L. pseudotegulare, and some other species in the L. stictaspis species complex can have numerous punctures on the rims of T1–T2, but these punctures are absent on the extreme apical margins, T1 medially, and T2 far sides; in addition, the tegula is usually much larger with the inner posterior margin strongly concave. Etymology The specific epithet ʻ holzenthali ʼ is a dedication to Ralph Holzenthal, in recognition for kindling my interest in taxonomy and supporting my work and studies at UMSP. Material examined Holotype UNITED STATES – Arizona • ♀; Pima Co., Tucson, Pima Canyon; 32.358° N, 110.933° W; 7 Mar. 2018; T.J. Wood leg.; WRME. [Verbatim label: USA: AZ: Pima 7.iii.2018 / Tucson, Pima Canyon / 32.358°, -110.933° / leg. T.J. Wood // BOLD / DLIII 126-18 / gard0063-AZ // HOLOTYPE / Lasioglossum (Dialictus) holzenthali Gardner and Gibbs] Paratypes GUATEMALA – Huehuetenango • 1 ♂; La Democracia, Calauté; 15.571° N, 91.8496° W; elev. 915 m; 27 Apr. 2010; Philippe Sagot, Cafeta leg.; ECOAB.43127. MEXICO – Chiapas • 1 ♀; 32 km E of La Trinitaria, Chinkultic ruins; 16.1333° N, 91.7833° W; elev. 1430 m; 15 Apr. 1993; C. Mendoza leg.; SEMC SM0341356 • 1 ♀; Soyalo; 16.91° N, 92.94° W; elev. 1356 m; 15 Jun. 2016; Philippe Sagot leg.; ECOAB ECOAB.66657. – Guerrero • 1 ♂; 20 mi. S of Chilpancingo; [17.25° N, 99.48° W]; elev. 1128 m; 6 Aug. 1954; SEMC • 1 ♀; 6 mi. NE of Tixtla; [17.63° N, 99.33° W]; 16 Jul. 1984; J.B. Woolley leg.; TAMU-ENTO X1362205. – Hidalgo • 1 ♀; 38 mi. NE of Jacala; [21.4° N, 98.8° W]; elev. 945 m; 10 Jul. 1961; ex Bidens sp.; SEMC. – Jalisco • 1 ♀; Chamela Estación Biologia; [19.5° N, 105.04° W]; 11 Mar. 2000; F.D. Parker leg.; BBSL397009. – Michoacán • 2 ♀♀; Dr. Miguel Silva, 9 km S of Ario de Rosales; 19.116° N, 101.7357° W; elev. 1450 m; 29 Oct. 1987; T. L. Griswold leg.; BBSL1100948, BBSL1100949 • 1 ♀; Huetamo, Highway 15; 18.631° N, 100.8995° W; 7 Mar. 1972; F.D. Parker, D. Miller leg.; BBSL1100941 • 2 ♂♂; Los Sabinos, 28 km S of Ario de Rosales; 18.9556° N, 101.7447° W; elev. 1190 m; 29 Oct. 1987; T. L. Griswold leg.; BBSL1100938, BBSL1100939. – Morelos • 2 ♀♀; 4.7 mi. S of Yautepec; [18.82° N, 99.06° W]; elev. 983 m; 15 Aug. 1962; University of Kansas Mexico Expedition leg.; SEMC • 1 ♀; 7.3 mi. S of Yautepec; [18.78° N, 99.06° W]; elev. 914 m; 16 Aug. 1962; Ordway and Naumann leg.; SEMC • 1 ♀; Cuernavaca; [18.92° N, 99.22° W]; Feb. 1945; N.L.H. Krauss leg.; USNM. – Nayarit • 1 ♀; San Blas area; 22.8667° N, 105.1° W; 16–21 Mar. 1983; W.J. Hanson leg.; BBSL1101035 • 1 ♂; San Blas, La Bajada; 21.5166° N, 105.2195° W; 20–21 Mar. 1983; W.J. Hanson leg.; BBSL1101024. – Puebla • 1 ♀; 3 mi. NW of Petlalcingo; [18.1° N, 97.97° W]; 3 Apr. 1962; F.D. Parker leg.; UCDC. – San Luis Potosi • 1 ♀; 17 mi. E of Ciudad del Maíz; [22.38° N, 99.36° W]; elev. 975 m; 23 Jul. 1962; University of Kansas Mexico Expedition leg.; SEMC • 1 ♀; 5 mi. E of Ciudad del Maíz; [22.4° N, 99.53° W]; elev. 1433 m; 22 Aug. 1954; University of Kansas Mexico Expedition leg.; SEMC • 2 ♀♀; ibid.; 22 Aug. 1954; SEMC • 2 ♀♀; ibid.; 22–23 Aug. 1954; SEMC • 1 ♀; Xilitla; [21.38° N, 98.99° W]; elev. 442 m; 23 Jul. 1954; SEMC. – Sinaloa • 3 ♂♂; Sierra “Surutata” [Surutato], Cañon de “Tarahumares” [Tarahumaras], El Alamo; [25.82° N, 107.75° W]; 4 Mar. 1971; D.E. Breedlove leg.; ex Lopezia ciliatula; CAS CASENT 8416781, CASENT 8416782, CASENT 8416783. – Sonora • 1 ♂; 18 km E of Alamos, Rancho E. Guyabo, Barranca de Caja; 27.0127° N, 108.7752° W; elev. 370 m; 1–4 Apr. 2008; M.E. Irwin, F.D. Parker leg.; BBSL FDP747628 • 1 ♀; 30 km east of Agua Prieta; 31.33168° N, 109.25817° W; 5 May 2001; R. L. Minckley leg.; RLM SBV011946 • 2 ♀♀; Alamos; [27.03° N, 108.94° W]; 3 Sep. 1991; T. Griswold leg.; BBSL849293, BBSL849295 • 3 ♀♀; El Chalate, 3.7 km ENE of Rancho Los Llanos, 47 km ENE of Alamos; 27.0817° N, 108.7567° W; elev. 700 m; 1–10 Oct. 2006; M.E. Irwin leg.; BBSL FDP88440, FDP88445, FDP88469 • 1 ♂; ibid.; 1–10 Oct. 2006; M.E. Irwin leg.; BBSL FDP88505 • 4 ♀♀; Rancho El Cajón, 40 km E of Alamos; 27.05° N, 108.7318° W; elev. 420 m; 1–11 Oct. 2006; M.E. Irwin leg.; BBSL FDP746162, FDP746355, FDP746397, FDP746558 • 5 ♂♂; ibid.; 1–11 Oct. 2006; M.E. Irwin leg.; BBSL FDP745913, FDP746263, FDP746588, FDP746589, FDP746669 • 1 ♀; Rancho La Lajas, 44 km E of Alamos; 27.0572° N, 108.7133° W; elev. 555 m; 26 Sep.–11 Oct. 2006; M.E. Irwin leg.; BBSL FDP755132 • 1 ♀; Rancho Los Encinitas, 42 km ENE of Alamos; 27.06216° N, 108.74083° W; elev. 480 m; 1–10 Oct. 2006; M.E. Irwin leg.; BBSL FDP749879 • 1 ♀; Rancho Los Encinitas, 42 km ENE of Alamos; 27.0622° N, 108.7408° W; elev. 480 m; 1–9 Oct. 2006; M.E. Irwin leg.; BBSL FDP746840 • 1 ♀; Rancho Palo Injerto, 40 km E of Alamos; 27.042° N, 108.7337° W; elev. 425 m; 30 Sep. 2006; M.E. Irwin leg.; BBSL FDP748502 • 1 ♀; Rancho Santa Bárbara, 30 km NE of Alamos; 27.12° N, 108.72166° W; elev. 1334 m; 2Apr. 2008; M.E. Irwin, F.D. Parker leg.; BBSL FDP749614 • 1 ♀; Rancho Santa Bárbara, 57 km NE of Alamos; 27.1095° N, 108.7418° W; elev. 1410 m; 2–6 Oct. 2006; M.E. Irwin leg.; BBSL FDP747268 • 1 ♂; Rancho Santa Bárbara, 57 km NE of Alamos; 27.1127° N, 108.7388° W; elev. 1380 m; 5 Oct. 2006; M.E. Irwin leg.; BBSL FDP86569 • 2 ♀♀; Rancho Santa Bárbara, 57 km NE of Alamos; 27.1095° N, 108.7418° W; elev. 1410 m; 6–9 Oct. 2006; M.E. Irwin leg.; BBSL FDP747222, FDP747241 • 1 ♀; Rancho Santa Bárbara, 59 km NE of Alamos; 27.1195° N, 108.7223° W; elev. 1355 m; 3 Oct. 2006; M.E. Irwin leg.; BBSL FDP746995. – Tamaulipas • 1 ♀; “Lleva” [Llera], Rio Guayalejo; [23.32° N, 99.03° W]; 27 Mar. 2001; M.J. Sharkey leg.; PCYU • 1 ♀; 6.6 mi. W of Antiguo Morelos; [22.55° N, 99.19° W]; elev. 427 m; 3 Sep. 1962; Ordway and Naumann leg.; SEMC • 1 ♀; 8 mi. NW of Nuevo Morelos; [22.62° N, 99.31° W]; 22 Jul. 1962; ex Kallstroemia; SEMC • 1 ♂; Altas Cumbres, 12 mi. SW of Ciudad Victoria; [23.6° N, 99.2° W]; 4 Jul. 1986; Schaffner, Kovarik leg.; TAMU-ENTO X1416868 • 1 ♂; west of Gómez Farias; [23.03° N, 99.16° W]; 15 Nov. 1985; Kovarik, Jones, Haack leg.; TAMU-ENTO X1421045. – Veracruz • 1 ♀; Orizaba; [18.85° N, 97.1° W]; Crawford leg.; USNM. – Unknown • 1 ♀; Jalapa [exact location unknown]; Crawford leg.; USNM. UNITED STATES – Arizona • 1 ♀; Cochise Co., 3 mi. SW of Portal along Cave Creek; 31.8869° N, 109.1736° W; elev. 1550 m; 25–30 Jun. 1987; SEMC1590744 • 1 ♂; ibid.; 25–30 Jun. 1987; SEMC1590739 • 2 ♀♀; ibid.; 30 Jun.–15 Jul. 1987; SEMC1590807, SEMC1590820 • 1 ♀; ibid.; 15–19 Jul. 1987; SEMC1590885 • 1 ♂; Cochise Co., 3.2 km SW of Portal; [31.89° N, 109.17° W]; 12 Jul. 1987; Bryan N. Danforth leg.; ex Asclepias; SEMC • 1 ♀; Cochise Co., Bisbee, 1429 Franklin Street; 31.4066° N, 109.9327° W; elev. 1585 m; 22 Aug.–1 Sep. 2013; A.S. Menke leg.; BBSL FDP152690 • 1 ♀; Cochise Co., Rosewood; 31.36732° N, 109.1432° W; 20 Mar. 2014; W. Radke leg.; RLM SBV086684 • 1 ♀; Cochise Co., Southwestern Research Station, 5 mi. W of Portal; 31.8839° N, 109.206° W; 2 Sep. 2005; A. Kawakita leg.; AMNH • 1 ♀; Gila Co., 21 km S of Globe; 33.2353° N, 110.782° W; elev. 1480 m; 20–25 May 2013; M.E. Irwin leg.; BBSL FDP152196 • 1 ♀; Graham Co., Coronado National Forest, 20–30 mi. SW of Safford, Mount Graham Road; 32.6222° N, 109.8242° W; elev. 2592 m; 17 Aug. 2001; R. W. Brooks leg.; ex Geranium caespitosum; SEMC SM0273670 • 1 ♀; Pima Co., Catalina Mountains, junction of Oracle and Catalina Highway; [32.45° N, 110.77° W]; elev. 2600 m; 28 Aug. 1997; Robert L. Minckley leg.; SEMC SM0475669 • 1 ♂; Pima Co., Mount Lemmon Trail, Coronado National Forest; 32.4406° N, 110.7856° W; elev. 2135–2500 m; 15 Aug. 2001; R. W. Brooks leg.; ex Erigeron oreophilus;

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