Dipropus warneri Johnson 2016, new species

(Fig. 9–10, 17)

Description. As for D. pericu, except length 8.1–11.4 mm, width 2.3–3.4 mm. Integument testaceocastaneous.

Head with ocular index 67. Antenna moderately long, reaching to metafemoral angle of elytra, antennomere 8 reaching apex of hind angle, antennomeres 2–3, 7, 11 length ratio 1.0:3.5, 3.6, 5.8.

Pronotum slightly wider (1.1x) than long; trapezoidal; lateral margin strongly carinate at hind angle, sinuate at midlength; integumental punctures coarse, umbilicate, approximate, becoming slightly sparser, separate by 0.2x own diameter on posterior declivity. Hind angles strongly divergent at base, slightly incurved apically; with strong dorsal carina near lateral margin.

Elytra with intervals shallowly convex throughout, becoming obscurely corrugated apically; apices conjointly rounded to subtruncate.

Metaleg with tibia 1.2x length of femur, tarsus 0.8x length of tibia; tarsomere length ratio 1.00:0.47:0.21:0.21:0.74.

Aedeagus as in Fig. 12; basal piece 0.63 of total length, paramere 0.42 of total length, paramere apex 0.29 of paramere length.

Female: As for male, except body form subparallel; pronotum length 0.82–0.85x width; antenna short, antennomere 10 reaching apex of hind angle, antennomere 2–4, 11 length ratio 1.0:2.2:2.0, 3.0; metatarsomere length ratio 1.0:0.44:0.22:0.11:0.77; ventrite 5 with punctures small, simple, evenly distributed.

Type Material. Holotype, male, ARIZONA: Pima Co., Continental, 27.vii.1990, W.B. Warner (PJJC to USNM).

Paratypes (26): MEXICO: CHIHUAHUA, Nuevo Casas Grandes, 1371 m, 13.vii.1981, at light, P. Jump (1, UAIC). COAHUILA, Cuatro Cienegas Nat’l Preserve, 21-23.vi.2011, 26.91851°N, 102.10211°W, D.C. Lightfoot et al., colrs. / Site C 7, Rio Mesquites, basin floor, ponds, stream, general collecting (9, UNMC); 23-24.vi.2011, 26.87756°N, 102.13855°W, D.C. Lightfoot et al., colrs. / Site B4, ~ 14.14 km SW of Cuatro, saline/alkaline/gypsum, limestone gravels, general collecting (1, UNMC); 24.vi.2011, 26.80562°N, 102.01695°W, D.C. Lightfoot et al., colrs. / Site F5, ~ 20.61 km S of Cuatro Poza, wetlands, light trap (11, UNMC). UNITED STATES: ARIZONA, “Ariz.” (1, MCZ / Horn). Cochise Co., Willcox, 24.vii / Coll. Hubbard & Schwarz (1, USNM); 25.vii (2, USNM); Douglas, 25.vii.[19]44, W.W. Jones 43, 44-20665 (1, USNM); Texas Pass, Drago [o]n Mts., 19-17.vii, Wheeler leg. (1, USNM). [Pima Co.] Baboquiv [ari] Mt., 15-30.vi.[19]23 (1, MCZ /Fall); viii/1-15/24 (1, MCZ / Fall). Santa Cruz Co., Santa Rita Mts., 8000 ft., July, F.H. Snow (1, MCZ / Fall); Santa Rita M., 13.vii.1937 / D.J. & J.N. Knull collrs (1, USNM); Nogales, Wickham, 10.viii.1913 (1, USNM). NEW MEXICO, [Bernalillo Co.], Wickham Albuq [uerque] / Wickham collection 1933 (1, USNM). Chaves Co., Roswell, 27.vii.1966 / Rosenberg collection (2, USNM). Grant Co., Central City, 8 mi. E. Silver City, 15.vii.1971, J.R. McClellan, blacklight (1, TAMU). Hidalgo Co., Animas Mts., 1566 m, Double Adobe Cr., 10.vii.1981, at light, S. McCleve (1, UAIC); Otero Co., 10 mi. So. of Orogrande, 13.vi.1940, T.O. Thatcher collector (1, USNM). Sandoval Co., Thornton, vii.[18]97 (1, MCZ / Fall). TEXAS, El Paso Co., Fabens, 24.vi.2004, 31°31’17”N, 106°07’38”W, coll. E. Riley (1, TAMU); El Paso, 28.vi.1958, M.H. Hatch (1, USNM); viii.[190]4, J. Woodgate (1, MCZ / Fall). [Brewster Co.], Alpine, 15-30.vii.[19]26 (3, MCZ / Fall).

Etymology. This species is named in honor of William “Bill” Warner for his generosity in donating specimens and his numerous contributions to coleopterology.

Distribution. MEXICO, Chihuahua, Coahuila; UNITED STATES, Arizona, New Mexico, Texas.

Notes. Dipropus warneri has the most southern and eastern distribution to central Coahuila and southwestern Texas of the species occurring within the study area.