Cenophengus tupae Vega-Badillo et al. 2021

Fig. 29A-H

Cenophengus tupae Vega-Badillo et al. 2021a: 232.

Type locality.

San Luis Potosí, 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. Paratype ♂: same data | CNIN.

Remarks.

Cenophengus tupae is morphologically similar to C. howdeni, but can be distinguished by the length of antennomere 1, the pronotal disc and interocular distance. In C. tupae, antennomere 1 is longer than the next two combined, whereas in C. howdeni, it is shorter than the next two combined. The pronotal disc is convex, weakly elevated dorsally, forming a small depression in the basal part of each side, in C. howdeni it has a groove along mid-line. The interocular distance is 3.0 times eye width in C. howdeni, in C. tupae, it is twice as long as eye width.

Diagnosis.

Body brown except for antennae yellow-brown, integument chagreened, antennae long, more than twice the length of pronotum, antennal rami 3 times as long as the respective antennomere, head almost as wide as the pronotum and each elytron 4.1 times as long as wide; aedeagus trilobed with three teeth at the inner apex of paramere.

Redescription.

Male. Body length 4.0-5.2 mm, maximum body width 0.60-0.70 mm (pronotum). Body brown, except for antennae and stripe on pronotum yellow-brown (Fig. 29A, B). Head. Wider (0.60-0.71 mm) (0.655 ± 0.077 mm, n = 2) than long (0.40-0.50 mm) (0.45 ± 0.07 mm, n = 2) (Fig. 29C), at eye level, almost as wider as the pronotum, integument chagreened, punctures 1.5 times as long as eye facets and separated by approximately 1.5 punctured diameters, each puncture bearing a yellow-brown seta; interantennal distance (0.04-0.05 mm) (0.045 ± 0.007 mm, n = 2) less than the length of antennomere 1 (0.16-0.18 mm) (0.17 ± 0.014 mm, n = 2); eyes 1/2 as long as head in lateral view, longer (0.27-0.30 mm) (0.285 ± 0.021 mm, n = 2) than wide (0.18-0.23 mm) (0.20 ± 0.035 mm, n = 2); interocular distance (0.35-0.40 mm) (0.375 ± 0.035 mm, n = 2) twice as long as eye width; antennae long (1.54-1.60 mm) (1.58 ± 0.042 mm, n = 2), more than twice the length of pronotum; antennomere 1 (0.16-0.18 mm) (0.17 ± 0.014 mm, n = 2) longer than 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 (0.14-0.15 mm) (0.145 ± 0.007 mm, n = 2), 12 (terminal) (0.17-0.20) (0.18 ± 0.021 mm, n = 2), antennal rami lanceolate in lateral view, 3 times as long as the respective antennomere; terminal maxillary palpomere robust, securiform (0.15-0.16 mm) (0.155 ± 0.007 mm, n = 2), shorter than the preceding three combined; terminal labial palpomere spindle-shaped (0.09-0.10 mm) (0.095 ± 0.007 mm, n = 2), 3 times as long as the preceding one (0.03) (0.03 ± 0 mm, n = 2). Thorax. Pronotum longer (0.72-0.80 mm) (0.76 ± 0.056 mm, n = 2) than wide (0.60-0.71 mm) (0.65 ± 0.077 mm, n = 2) (Fig. 29D); integument chagreened, punctures 1.5 times as long as eye facets and separated by approximately 1.5 punctured diameters, each puncture bearing a yellow-brown seta, convex disc, weakly elevated dorsally, forming a small depression in the basal part of each side, posterior margin almost straight with middle notch, sides almost straight, anterior angles rounded and posterior angles acute; mesosternal suture complete; scutellum with posterior margin rounded; each elytron 4.1 times as long (1.57-1.90 mm) (1.73 ± 0.233 mm, n = 2) as wide (0.40-0.46 mm) (0.43 ± 0.021 mm, n = 2), convex, without longitudinal costae, elytral apex rounded; hind wings with posterior radial vein (RP) length 3 times less than the length of MP1+2, radial cell closed, r3 vein present, r4 vein reduced (not reaching the RP or the radial cell), those of the anterior anal and posterior anal sectors, evident (Fig. 29E). Legs: tarsomeres 1 and 2 of the prothoracic legs with a similar length and tarsomere 1 of meso- and metathoracic legs is longer than 2. Abdomen. Integument shiny, punctured, with long dense setae, sternite 7 with margin sinuate, sternite 8 with margin notched; aedeagus trilobed with three teeth at the inner apex of paramere (Fig. 29F-H).

Female and immatures.

Unknown.

Distribution.

Mexico: San Luis Potosí (Fig. 19).