Triepeolus mexicanus

Triepeolus mexicanus (Cresson, 1878) Figs 12F, 21 Epeolus mexicanus Cresson, 1878: 90 (♀, ♂). Epeolus rugulosus Cockerell, 1917: 299 (♂), syn. nov. Epeolus metatarsalis Friese, 1921: 91 (♂), syn. nov. Triepeolus bilunatus Cockerell, 1949: 461 (♀), syn. nov. Epeolus mexicanus – Cresson 1916: 124 (♀) (lectotype designation). Epeolus metatarsalis – Friese 1925: 31 (description of female). Triepeolus mexicanus – Cockerell 1949: 461. Triepeolus rugulosus – Michener 1954: 128, figs 86–88. Triepeolus metatarsalis – Moure et al. 2007: 591. Proposed common name Mexican triepeolus. Diagnosis The following morphological features in combination tell T. mexicanus apart from all other species of Triepeolus: pale tomentum on the mesoscutum is restricted to the lateral and posterior margins (Fig. 21B); the T1 basal band is arched, continuous with (and indistinguishable from) the lateral longitudinal bands, and mesally concave on each side, such that the discal patch is semicircular (Fig. 21B); and T2–T4 have complete apical transverse bands of yellow tomentum (Fig. 21B, D). Triepeolus mexicanus most closely resembles specimens of T. alvarengai without an apical transverse band on T1 and T. nemoralis, both of which are known only from South America, but in T. alvarengai the mesoscutum has well-defined paramedian bands and in T. nemoralis the mesoscutum has a large anteromedial ovate patch of yellow tomentum, which may be sparser medially such that the patch is suggestive of ill-defined paramedian bands. Males of T. mexicanus also closely resemble those of T. flavipennis (Friese, 1916) without an apical transverse band on T1 and T. cameroni (Meade-Waldo, 1913), but in the latter two species, which are not in the simplex species group, the mesoscutum has well-defined paramedian bands, in T. flavipennis the pair of anterolateral patches of pale tomentum on T1 are mesally convex, such that the discal patch forms a trapezoid or triangle with concave anterolateral sides, and in T. cameroni S3 has an apical/subapical fringe of dense, long (>1 MOD), curved, pale setae (as opposed to only short, straight setae; Fig. 21C). This species is also very similar in overall appearance to Epeolus luteipennis Friese, 1916 and specimens of E. obscuripes Cockerell, 1917 in which the axillae and mesoscutellum are black, but both sexes of T. mexicanus can easily be told apart from any similar-looking Epeolus by their simple mandibles; in E. luteipennis, E. obscuripes, and most other Epeolus spp., the mandibles each have a distinct preapical tooth. Etymology The specific epithet refers to the type locality— Mexico. The Latin adjectival suffix ‘-anus’ means ‘of’ or ‘pertaining to’. Material examined Primary type material HONDURAS • ♀, T. bilunatus holotype; Francisco Morazán, Zamorano; 17 Jan. 1947; W.P. Cockerell leg.; USNM 534619. MEXICO • ♀, E. mexicanus lectotype; F. Sumichrast leg.; ANSP 2229. PANAMA • ♂, E. rugulosus holotype; Comacho, Canal Zone; 27 Mar.; A.H. Jennings leg.; USNM 534866. Secondary type material MEXICO • 1 ♂, E. mexicanus lectoallotype; F. Sumichrast leg.; ANSP 2229-2 • 2 ♀♀, E. mexicanus paralectotypes; F. Sumichrast leg.; ANSP 2229-6, 2229-9 • 1 ♀, E. mexicanus paralectotype; USNM 2229.5 /M.G.R. Database No. 5851. DNA barcoded material Available. BIN: BOLD:AAV3172. Specimens examined and sequenced: MEXICO • 1 ♀; Jalisco, Chamela Eje Central trail; 19.5001° N, 105.0427° W; 1 Oct. 2010; S. Dumesh leg.; BOLD sample ID: CCDB-09669 A11; PCYU PCYU-MEX10-0013. USA – Arizona • 1 ♂; Community Road, Cochise County; 32.0137° N, 109.0873° W; 26 Aug. 2011; N. de Silva leg.; BOLD sample ID: 14511H03-NM; PCYU 0003812. – New Mexico • 1 ♂; NW of Lordsburg, Hidalgo County; 32.5507° N, 108.9226° W; 3 Sep. 2015; L. Packer leg.; BOLD sample ID: CCDB-30344 C11; PCYU. Non-barcoded material COSTA RICA – Alajuela • 1 ♀ (supposedly an E. metatarsalis syntype, but the designation is suspect as Friese 1921 only described the male); San Mateo; May 1921; AMNH AMNH_ IZC 00324050. – Guanacaste • 1 ♀; 5 mi NW of Las Cañas; 26 Jun. 1963; Wille and Michener et al. leg.; KUNHM M.G.R. Database No. 5068 • 1 ♀; Guanacaste National Park (Maritza Biological Station); “ I/12/1995 ”; L.S. Kimsey leg.; UCBME • 1 ♀; Hacienda Comelco (24 km NW of Canas on Inter-American Hwy); 5 Aug. 1971; E.R. Heithaus leg.; LACM 5339, coll. #282/M.G.R. Database No. 3422 • 1 ♂; Palo Verde Biological Station; 10.3475° N, 85.3497° W; 17 Nov. 2001; R.W. Brooks leg.; KUNHM CR1B01 31 /M.G.R. Database No. 5071 • 1 ♂; Palo Verde Biological Station; 10.3968° N, 85.3236° W; 18 Nov. 2001; R.W. Brooks leg.; KUNHM CR1B01 42 /M.G.R. Database No. 5070. GUATEMALA • 1 ♀; El Progreso, Puente El Hato (49.9 mi NE of Guatemala City); 5 Aug. 1966; Univ. Kans. Mex. Expedition leg.; KUNHM M.G.R. Database No. 5067. HONDURAS – Francisco Morazán • 1 ♀; Zamorano; 20 Jan.; USNM M.G.R. Database No. 6221 • 1 ♀; same data as for preceding; 24 Jan.; USNM M.G.R. Database No. 6217 • 2 ♀♀; same data as for preceding; 26 Jan.; USNM M.G.R. Database Nos 6220, 6222 • 1 ♀; same data as for preceding; 26 Jan.; F. Wiley leg.; USNM M.G.R. Database No. 6219 • 3 ♀♀; same data as for preceding; 30 Jan.; USNM M.G.R. Database Nos 6215, 6216, 6218. MEXICO – Chiapas • 1 ♀; Nututun (3 km S of Palenque); 25 Apr. 1993; J.L. Neff leg.; KUNHM SM0326531 /M.G.R. Database No. 7134 • 1 ♀; same data as for preceding; 25 Apr. 1993; R. Brooks leg.; KUNHM SM0326533 /M.G.R. Database No. 7139 • 1 ♀; same data as for preceding; 25 Apr. 1993; R. Brooks leg.; KUNHM SM0326534 /M.G.R. Database No. 7137. – Jalisco • 1 ♂; Chamela; 26 Sep. 1985; R.J. McGinley leg.; USNM M.G.R. Database No. 6226 • 2 ♂♂; same data as for preceding; 27 Sep. 1985; R.J. McGinley leg.; KUNHM M.G.R. Database Nos 5058, 5059 • 1 ♀; same data as for preceding; 1–8 Oct. 1985; F.D. Parker and T.L. Griswold leg.; KUNHM M.G.R. Database No. 5056 • 1 ♀; same data as for preceding; 10 Dec. 1989; “ Rodriguez G. ” leg.; UNAM M.G.R. Database No. 1553 • 1 ♀; Estación de Biología, Chamela; 11 Jul. 1989; R. Brooks, C. Michener, and A. Roig-Alsina leg.; KUNHM #015 /M.G.R. Database No. 5057. – Morelos • 1 ♀; 11 mi S of Tlaltizapán; 16 Aug. 1962; Roberts and Marston leg.; KUNHM M.G.R. Database No. 5062. – Nayarit • 1 ♀; San Blas; 7 Apr. 1994; R. Ayala leg.; KUNHM PCAM5-9 010/M.G.R. Database No. 5054 • 1 ♀; same data as for preceding; 7 Apr. 1994; R. Ayala leg.; KUNHM PCAM5-9 010 /M.G.R. Database No. 5055. – Oaxaca • 1 ♀; 12 mi W of Tehuantepec; 16 Sep. 1974; G. Bohart and W. Hanson leg.; AMNH M.G.R. Database No. 2353 • 1 ♂; same data as for preceding; 16 Sep. 1974; G. Bohart and W. Hanson leg.; AMNH M.G.R. Database No. 2355 • 1 ♀; same data as for preceding; 16 Sep. 1974; G. Bohart and W. Hanson leg.; KUNHM M.G.R. Database No. 3893 • 1 ♂; same data as for preceding; 16 Sep. 1974; G. Bohart and W. Hanson leg.; KUNHM M.G.R. Database No. 3894 • 1 ♀; same data as for preceding; 16 Sep. 1974; G. Bohart and W. Hanson leg.; LACM M.G.R. Database No. 3421 • 1 ♂; same data as for preceding; 16 Sep. 1974; G. Bohart and W. Hanson leg.; LACM M.G.R. Database No. 3425 • 1 ♀; 4 mi E of Tapanatepec; 9 Jul. 1953; Univ. Kans. Mex. Expedition leg.; KUNHM M.G.R. Database No. 5063 • 1 ♀; 6 mi S of Tehuantepec; 8 Jul. 1953; Univ. Kans. Mex. Expedition leg.; KUNHM M.G.R. Database No. 1324 • 1 ♂; 8 km W of Tehuantepec; 9–10 Aug. 1974; E.M. and J.L. Fisher leg.; LACM M.G.R. Database No. 3428 • 1 ♀; Salina Cruz; 8 Jul. 1953; Univ. Kans. Mex. Expedition leg.; KUNHM M.G.R. Database No. 5064 • 1 ♂; Tequisistlán; 7 Jan. 1948; T. MacDougal leg.; AMNH M.G.R. Database No. 1491 • 1 ♀; San Luis Potosí, 15 mi S of Pujal; 21 Jun. 1953; Univ. Kans. Mex. Expedition leg.; UCBME • 1 ♂; same data as for preceding; 21 Jun. 1953; Univ. Kans. Mex. Expedition leg.; KUNHM M.G.R. Database No. 5053. – San Luis Potosí • 1 ♀; 3 mi E of Cascada el Salto; 21 Jul. 1962; Ordway and Roberts leg.; KUNHM M.G.R. Database No. 5051 • 7 ♀♀; Cascada el Salto; 3–5 Jul. 1990; R.L. Minckley leg.; KUNHM M.G.R. Database Nos 5042 to 5048 • 1 ♀; same data as for preceding; 4 Jul. 1990; I. Yarom leg.; KUNHM M.G.R. Database No. 5049 • 1 ♀; Cascada el Salto (12 km NW of El Naranjo); 3 Jul. 1990; D. Yanega leg.; UCR UCRC ENT 57102/M.G.R. Database No. 1554 • 1 ♂; El Salto; 8 Jun. 1961; Univ. Kans. Mex. Expedition leg.; KUNHM M.G.R. Database No. 5050 • 1 ♀; same data as for preceding; 4 Sep. 1962; Ordway and Marston leg.; KUNHM M.G.R. Database No. 5052 • 1 ♂; Tamazunchale; 1 May 1976; E. Barrera leg.; LACM M.G.R. Database No. 3427. – Sinaloa • 1 ♂; 20 mi N of Los Mochis; 9 Oct. 1968; G.E. Bohart leg.; CAS M.G.R. Database No. 11712 • 7 ♂♂; 5 mi N of Mazatlán; 5–7 Aug. 1964; J.E.H. Martin leg.; CNC 754101 to 754103, 754115 to 754117 • 1 ♀; 7 mi S of Culiacán; 23 Aug. 1960; R.L. Westcott leg.; LACM M.G.R. Database No. 3424 • 1 ♂; same data as for preceding; 23 Aug. 1960; R.L. Westcott leg.; LACM M.G.R. Database No. 3429 • 9 ♂♂; Mazatlán; 6 Aug. 1964; W.R.M. Mason leg.; CNC 754104 to 754108, 754112 to 754114, 754087 • 3 ♂♂; same data as for preceding; 16 Aug. 1964; J.F. McAlpine leg.; CNC 754109 to 754111. – Sonora • 2 ♀♀; 108 km W of Hermosillo; 16 Aug. 1991; R.L. Minckley leg.; KUNHM M.G.R. Database Nos 5040, 5041 • 1 ♀; 13 km W of Álamos; 1 Sep. 1975; B. Villegas leg.; UCBME • 1 ♂; Álamos; 3 Sep. 1991; J.G. Rozen leg.; KUNHM SM0326519 /M.G.R. Database No. 7136 • 1 ♂; same data as for preceding; 3 Sep. 1991; J.G. Rozen leg.; KUNHM SM0326523 /M.G.R. Database No. 7138 • 1 ♀; same data as for preceding; 4 Sep. 1991; J.L. Neff leg.; KUNHM SM0326524 /M.G.R. Database No. 7135 • 1 ♂; Microondas Road (19 km N of Hwy 15 and Hwy 24 junction); 20 Mar. 1990; R.L. Minckley leg.; KUNHM M.G.R. Database No. 5069 • 1 ♀; San Bernardo; 16 Aug. 1935; H.S. Gentry leg.; LACM acc. 1031/M.G.R. Database No. 3423 • 1 ♂; same data as for preceding; 16 Aug. 1935; H.S. Gentry leg.; LACM acc. 1031/M.G.R. Database No. 3426. – Tamaulipas • 1 ♂; 14 mi S of Antiguo Morelos; 21 Jul. 1954; Univ. Kans. Mex. Expedit

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