Cenophengus mumui Vega-Badillo et al. 2021

Vega-Badillo, Viridiana, Morrone, Juan J. & Zaragoza-Caballero, Santiago, 2021, Revision of the genus Cenophengus LeConte, 1881 (Coleoptera, Phengodidae), with the description of four new species, new geographic records and a new synonymy, ZooKeys 1068, pp. 73-148 : 73

Cenophengus mumui Vega-Badillo et al. 2021

Fig. 20A-H

Cenophengus mumui Vega-Badillo et al. 2021a: 231.

Type locality.

San Luis Postosí, Mexico.

Type material examined.

Holotype ♂: "Mexico, San Luis Potosí, / Tamasopo. Cerro al noroeste/ del cafetal, 01-06-15, / N 21°55.47' W 99°24.95' Col. / Jessica Ríos” | CNIN.

Remarks.

Cenophengus mumui is in a clade with C. munizi and C. huatulcoensis ( Vega-Badillo et al. 2021b), but can be distinguished from C. munizi by the shape and colour of the head. In C. mumui , the head is square and brown, whereas in C. munizi , it is rectangular-shaped. Additionally, in C. mumui , the antennal rami are 1.5 times as long as the respective antennomere, whereas in C. munizi , they are twice as long as the respective antennomere. Finally, C. mumui can be distinguished from C. huatulcoensis by the interantennal distance and interocular distance. In C. huatulcoensis , the interantennal distance is equal to the length of antennomere 1, whereas in C. mumui , it is less than the length of antennomere 1. The interocular distance is 2 times eye width in C. mumui , in C. huatulcoensis , it is 3 times eye width.

Diagnosis.

Body yellow, except for head brown, integument smooth, antennae long more than twice the length of pronotum, antennal rami 1.5 times the respective antennomere, pronotum as long as wide and each elytron 4.3 times as long as wide; aedeagus with one spine at the inner apex of paramere.

Redescription.

Male. Body length 3.5-4.0 mm; maximum body width 0.56-0.59 mm (pronotum). Body yellow, except for head brown (Fig. 20A, B ). Head. Wider (0.58-0.61 mm) (0.595 ± 0.458 mm, n = 2) than long (0.49-0.52 mm) (0.505 ± 0.021 mm, n = 2) (Fig. 20C ), at eye level, almost as wide as the pronotum, integument smooth, punctures twice as long as eye facets and separated by approximately 1 punctured diameter, each puncture bearing a yellow seta; interantennal distance (0.09-0.10 mm) (0.095 ± 0.007 mm, n = 2) less than the length of antennomere 1 (0.13-0.15 mm) (0.14 ± 0.014 mm, n = 2); eyes 1/2 as long as head in lateral view, longer (0.20-0.22 mm) (0.21 ± 0.014 mm, n = 2) than wide (0.13-0.15 mm) (0.14 ± 0.028 mm, n = 2); interocular distance (0.32-0.36 mm) (0.34 ± 0.028 mm, n = 2) twice as long as eye width; antennae long (1.67-1.87 mm) (1.77 ± 0.141 mm, n = 2), more than twice the length of pronotum; antennomere 1 (0.13-0.15 mm) (0.14 ± 0.014 mm, n = 2) as long as the next two combined, antennomere 3 cup-shaped, 4 (0.12-0.13 mm) (0.125 ± 0.007 mm, n = 2) shorter than the following antennomeres; 5 to 11 about equal in length (0.15-0.17 mm) (0.16 ± 0.014 mm, n = 2), 12 (terminal) (0.25-0.27 mm) (0.26 ± 0.014 mm, n = 2), antennal rami lanceolate in lateral view, 1.5 times as long as respective antennomere; terminal maxillary palpomere robust, securiform (0.15-0.16 mm) (0.155 ± 0.007 mm, n = 2), as long as the preceding three combined; terminal labial palpomere spindle-shaped (0.05-0.06 mm) (0.055 ± 0.007 mm, n = 2), twice as long as the preceding one (0.02-0.03 mm) (0.025 ± 0.007 mm, n = 2). Thorax. Pronotum as long (0.58-0.62 mm) (0.6 ± 0.028 mm, n = 2) as wide (0.56-0.59 mm) (0.575 ± 0.021 mm, n = 2) (Fig. 20D ); integument smooth, punctures twice as long as eye facets and separated by approximately 2 punctured diameters, with a yellow-coloured seta in each puncture; disc convex, weakly elevated dorsally forming a small depression in the basal part of each side, posterior margin almost straight with middle notch, sides convex, anterior and posterior angles rounded; mesosternal suture incomplete; scutellum with posterior margin rounded; each elytron 4.3 times as long (1.44-1.62 mm) (1.53 ± 0.127 mm, n = 2) as wide (0.34-0.37 mm) (0.355 ± 0.021 mm, n = 2), convex, without longitudinal costae, elytral apex right angled; posterior radial vein (RP) length 4.8 times less than the length of MP1+2, radial cell closed and slightly defined, r3 and r4 veins absent, those of the anterior anal and posterior anal sectors, absent (Fig. 20E ). Legs: tarsomeres 1 of pro-, meso- and metathoracic legs with a similar length. Abdomen. Integument shiny, punctured, with long dense setae, sternite 7 with margin sinuate, sternite 8 with margin notched; aedeagus with one spine at the inner apex of paramere (Fig. 20F-H ).

Immatures and females.

Unknown.

Distribution.

Mexico: San Luis Postosí and Tamaulipas (Fig. 19 ).

Additional material examined.

" MEXICO: Tamps. Mun. / Gomez Farias , Al / Cimas, 1000 m. 22- / III-1987 P. Kovarik / R. Jones; UV light" "From the Michael / Ivie Collection" (1) | CNIN .

Figures

Figure 19. Map of southern North America showing specimen localities for Cenophengus spp. (continued).

Figure 20. Cenophengus mumui Vega-Badillo et al. 2021, male. Habitus: A dorsal B ventral C head dorsal D pronotum dorsal E hind wing. Wing venation: CR = Radial Cell; RP = Posterior Radial vein; MP 1 + 2 = Posterior Median vein; CuA = Cubital vein; AP = Posterior Anal vein. Aedeagus: F dorsal view G lateral view H ventral view.