Odontoloxozus longicornis (Coquillett, 1904) (Figs 1I, 5E, F, 8C) Diagnosis. Gena lightly dusted (Fig. 1I). Antenna porrect, brown, pedicel light brown, twice as long as flagellomere (Fig. 1I). Arista white, base small and brown (Fig. 1I). Vibrissa absent. Scutum dense silvery pruinose with median longitudinal brown stripe. Tegument densely pruinose with numerous setulae inserted in brown maculae, giving the appearance of a brown dotted body (Fig. 5E, F). Microtrichia absent in cell bc; and partially absent in cells c, bm and br. Vein dm-m oblique. Femora light to dark brown, tibia light brown, slightly darker at distal end (Fig. 5E, F). Material examined. Mexico. Guerrero. Acahuizotla [17.36061, -99.46751], 28.i.1982, A. Ibarra, 1 female (CNIN). Jalisco. Estación de Biología Chamela [19.49834, -105.04457], trampa de fermento, 17.vi.1991, E. Ramírez, 2 males (EBCH); same label information, except: 24.vi.1991, 3 males (EBCH); 17.vii.1989, 2 females (EBCH); 5.vii.1989, 2 females (EBCH); 12.vi.1989, 8 males and 4 females (EBCH); 8.vi.1989, 5 males and 2 females (EBCH); 14.v.1989, 1 male and 2 females (EBCH); 9.vii.1989, 2 males (EBCH); 15.v.1989, 1 male and 2 females (EBCH); 6.ix.1989, 1 male (EBCH); 5.ix.1990, 1 male and 1 female (EBCH); 3.ix.1990, 1 female (EBCH); 5.vi.1989, 1 male and 1 female (EBCH); 7.vi.1989, 4 males and 1 female (EBCH); 1.v.1989, 1 female (EBCH); 1.iii.1991, 1 female (EBCH); 24.iv.1991, 1 male and 1 female (EBCH); 22.iv.1991, 1 male (EBCH); 13.xi.1989, 3 females (EBCH); 19.ix.1990, 1 male (EBCH); 27.vi.1991, 1 female (EBCH); 6.xii.1988, 1 male (EBCH); 5.xii.1988, 1 male and 2 females (EBCH); 21.vii.1988, 1 male (EBCH); 31.x.1988, 2 females (EBCH); 6.xii.1988, 1 female (EBCH); 17.vi.1991, 2 females (EBCH); 17.x.1988, 2 females (EBCH); 7.xi.1988, 1 female (EBCH); 7.xii.1988, 2 females (EBCH); 22.xi.1990, 1 male (EBCH); 19.vi.1991, 1 male (EBCH); 22.xi.1990, 1 male and 1 female (EBCH); 12.v.1989, 1 female (EBCH); Carretera Barra Navidad – Puerto Vallarta, km 70, San Mateo [19.57642, -105.08577], trampa de fermento, 12.x.1989, E. Ramírez, 1 male (EBCH); same label information, except: 11.x.1989, 1 female (EBCH); 16.x.1989, 1 male (EBCH); 13.xi.1989, 8 males and 3 females (EBCH); 21.x.1989, J. Villa, 1 male (EBCH); 23.x.1989, J. Villa, 1 male (EBCH); km 40, carretera Barra Navidad – Puerto Vallarta, Emiliano Zapata [19.49834, -105.04457], 12.ix.1995, A. Rodríguez, 1 male (EBCH). Mexico. Malinalco Malikualli [18.951311; -99.486200], S. Rodríguez, C. Pedraza, E. Nuple, L. García, 30.ix-28.x.2019, 1 female (CARF); Texcoco, San Dieguito [19.49015, -98.82432], [unknown date], F. Durán, 4 males and 2 females (CNIN); Parque Estatal Sierra de Guadalupe, Matarrol Xerofilo, NTP 80 [19.607194, -99.091722], 2502 m, 10.vi.2018, E. Jimenez & I. Rodríguez, 1 female (CNIN). Mexico City D. F. Jardín Botánico, REPSA, UNAM [19.31963, -99.19355], 31.viii.2016, C. Pedraza-Lara; L. Rodríguez-Vázquez; A. Coyotecatl-Franco & S. Rodríguez, 3 females (CARF – CPL1808-10); same label information, except: 27.iii.2017, 6 females (3 CARF, 3 CNIN); 31.viii.2016, 2 females (CARF); 06.i.2017, 8 females (4 CARF, 4 CNIN); 30.i.2017, 2 females (CARF, CNIN); 07.ix.2016, 1 female (CARF), 23.ix.2016, 2 females (CARF, CNIN); 19.x.2016, 2 females (CARF, CNIN); La Cantera Oriente [19.31819, -99.17284], 19.x.2016, 1 female (CNIN). Morelos. Alpuyeca [18.74061, -99.26068], 01.ix.1983, A. Ibarra, 1 male and 3 females (CNIN); Municipio Telpancingo CEAMISH [17.54733, -99.50268], 1210 m, 18.iii.2004, R. Mariño, 1 male (CNIN); 2.5 km N, 4 km O Huatla, Est. CEAMISH [18.461183, -99.04125], 940m, 17.iii.1996, A. Rodríguez, 1 female (EBCH); same label information, except: 5.ix.1996, 2 females (EBCH); 16.xi.1995, E. Ramírez, 1 female (EBCH); [18.46775, -98.992433], 950m, 14.ii.1996 (EBCH); 16.iii.1996, 1 female (EBCH). Oaxaca. Dominguillo 19 km SSE de Cuicatlán [17.64845, -96.9117166], 760m, 25.xi.1997, E. Ramírez, 3 males and 1 female (EBCH). Queretaro. Barranca de Cocheros, San Juan del Río [20.332986, -100.094675], 1-29.x.2019, S. Rodríguez, C. Pedraza, E. Nuple & L. García, 10 males (5 CARF, 5 CNIN) and 35 females (25 CARF, 10 CNIN). San Luís Potosí. km 30 carretera San Luís Potosí - Matehula [22.351111, -100.796389], 1850 m, 28.ix.2006, H. Brailovsky & E. Barrera, 1 female (CNIN). Sonora. Golfo da California, Isla San Pedro Mártir [28.38021, -112.30690], 9.viii.1985, M. García, 3 females (CNIN); same label information, except: 20.ii.1986, L. Cervantes, 2 females (CNIN); 08.xi.1985, M, García, 1 male (CNIN); 18.xi.1985, F. Árias, 1 female (CNIN); 9km NO Alamos y 3 km N Cam. M. La Luna [27.09466, -109.02283], 450m, 27.vii.1995, A. Rodríguez, 1 female (EBCH). Zacatecas. Villa de Cos [23.165444, -102.518056], 2080 m, 02.viii.2010, V. Lizardo, 1 female (CNIN); 15km SO Jalpa [21.5455, -103.077], 1350m, 21.x.1994, E. Ramírez, 1 female (EBCH). Distribution. USA, Mexico (Baja California, Baja California Sur, Chiapas, Guanajuato, Guerrero *, State of Mexico *, Mexico City D. F.*, Morelos *, Oaxaca *, Querétaro, San Luís Potosí, Sinaloa, Sonora, Zacatecas *), Costa Rica (Pfeiler et al. 2013). Remarks. Species of the genus Odontoloxozus inhabit arid areas of southwestern North America and Central America. The immatures develop in necrotic cactus tissue (Ryckman & Olsen 1963). The specimens from Jardín Botánico, Reserva Ecológica del Pedregal de San Ángel, Mexico City, Mexico were baited with pig carrion. This species occurs from sea level to the Mexican highlands, reaching 2,502 m. a.s.l.

Published as part of Gomes, Lucas R. P., Sepúlveda, Tatiana A. & Pedraza-Lara, Carlos, 2023, Neriidae (Diptera: Schizophora) from Mexico: new species, new records and an identification key, pp. 27-46 in Zootaxa 5264 (1) on pages 42-43, DOI: 10.11646/zootaxa.5264.1.2, http://zenodo.org/record/7836092