Cenophengus gorhami Zaragoza-Callero, 1986

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 gorhami Zaragoza-Callero, 1986

Fig. 9A-H

Cenophengus gorhami Zaragoza-Caballero, 1986: 934.

Type locality.

Yucatan, Mexico.

Type material examined.

Holotype ♂: "MEXICO: Yucatán / Mérida / VII-39-30-1964/ Paul J. Spangler" "S. Zaragoza C. det. / Cenophengus gorhami / Zaragoza" "BLNO/ 004121"| NMNH.

Remarks.

Cenophengus gorhami is sister to C. ciceroi ( Vega-Badillo et al. 2021b), but can be distinguished by the interocular distance and the terminal maxillary palpomere. In C. gorhami , the interocular distance is twice as long as eye width, whereas in C. ciceroi , it is 1.5 times longer. The terminal maxillary palpomere is shorter than the preceding three combined in C. gorhami , in C. ciceroi , it is as long as the preceding three combined. Additionally, in C. gorhami , the pronotal disc with central longitudinal elevation, whereas in C. ciceroi , it has a groove along mid-line.

Diagnosis.

Integument chagreened, antennae long, more than twice the length of pronotum, antennal rami twice as long as the respective antennomere and elytra barely reaching the middle of the metasternum, each elytron 3.1 times as long as wide; aedeagus with three teeth at the inner apex of paramere.

Redescription.

Male. Body length 5.68-6.0 mm; maximum body width 0.71-0.75 mm (pronotum). Body yellow to pale brown, head a little darker, tip of mandibles almost black, elytra brown with yellowish apex (Fig. 9A, B ). Head. Wider (0.91-0.96 mm) (0.935 ± 0.035 mm, n = 2) than long (0.55-0.58 mm) (0.565 ± 0.021 mm, n = 2) (Fig. 9C ), at eye level, wider than the pronotum, integument chagreened, punctures twice as large as eye facets and separated by approximately 1 punctured diameter, each puncture bearing a yellow seta; interantennal distance (0.08-0.09 mm) (0.085 ± 0.007 mm, n = 2) less than the length of antennomere 1 (0.15-0.16 mm) (0.155 ± 0.007 mm, n = 2); eyes 3/4 as long as head in lateral view, longer (0.45-0.48 mm) (0.465 ± 0.021 mm, n = 2) than wide (0.25-0.27 mm) (0.26 ± 0.014 mm, n = 2); interocular distance (0.41-0.43 mm) (0.42 ± 0.014 mm, n = 2) twice as long as eye width; antennae long (1.75-1.88 mm) (1.81 ± 0.091 mm, n = 2) more than twice the length of pronotum; antennomere 1 (0.15-0.16 mm) (0.155 ± 0.007 mm, n = 2) longer than next two combined, antennomere 3 cup-shaped, 4 to 11 about equal in length (0.16-0.17 mm) (0.165 ± 0.007 mm, n = 2), 12 (terminal) (0.26-0.28 mm) (0.27 ± 0.014 mm, n = 2), antennal rami lanceolate in lateral view, twice as long as the respective antennomere; terminal maxillary palpomere robust, securiform (0.3-33 mm) (0.315 ± 0.021 mm, n = 2), shorter than the preceding three combined; terminal labial palpomere spindle-shaped (0.10-0.11 mm) (0.105 ± 0.007 mm, n = 2), 3 times as long as preceding one (0.03-0.04 mm) (0.035 ± 0.007 mm, n = 2). Thorax. Pronotum longer (1.03-1.08 mm) (1.05 ± 0.053 mm, n = 2) than wide (0.71-0.75 mm) (0.73 ± 0.028 mm, n = 2) (Fig. 9D ); integument chagreened, punctures smaller than eye facets and separated by approximately 3 punctured diameters, each puncture bearing a yellow seta, disc convex, with a longitudinal carina in posterior portion of pronotum strongly visible, with a length equal to the median length of the pronotum, posterior margin curved with middle notch, sides almost straight, anterior angles rounded and posterior angles acute; mesosternal suture incomplete; scutellum with posterior margin rounded; elytra short, barely reaching the middle of the metasternum, each elytron 3.1 times as long (1.52-1.61 mm) (1.56 ± 0.063 mm, n = 2) as wide (0.48-0.5) (0.49 ± 0.014, n = 2), convex, without longitudinal costae, elytral apex rounded; hind wings with posterior radial vein (RP) length 5.3 times less the length of MP1+2, radial cell closed, r3 vein absent, r4 vein reduced (not reaching the RP or the radial cell), those of the anterior anal and posterior anal sectors, absent (Fig. 8E ). 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 with three teeth at the inner apex of paramere (Fig. 9F-H ).

Female and immatures.

Unknown.

Distribution.

Mexico: Yucatán and Quintana Roo (Fig. 3 ).

Additional material examined.

" MEXICO: Quintana Roo / 19 km N Carrillo Puerto / 18-VI-1990 blacklight trap / coll. M.C. Thomas " " Cenophengus gorhami / Det. V. Vega-Badillo 2019" (1) | FSCA .

Figures

Figure 3. Map of southern North America showing specimen localities for Cenophengus spp.

Figure 8. Cenophengus gardunoi Vega-Badillo, Morrone & Zaragoza-Caballero, sp. nov., male. Habitus: A dorsal B ventral C head dorsal D pronotum dorsal E hind wing. Wing venation: CR = Radial Cell; r 4 = radial 4 vein; RP = Posterior Radial vein; MP 1 + 2 = Posterior Median vein; CuA = Cubital vein; AA and AP = Anterior and Posterior Anal veins. Aedeagus: F dorsal view G lateral view H ventral view.

Figure 9. Cenophengus gorhami Zaragoza, 1986, male. Habitus: A dorsal B ventral C head dorsal D pronotum dorsal E hind wing. Wing venation: CR = Radial Cell; r 4 = radial 4 vein; RP = Posterior Radial vein; MP 1 + 2 = Posterior Median vein; CuA = Cubital vein; AP = Anterior and Posterior Anal veins. Aedeagus: F dorsal view G lateral view H ventral view.