Cenophengus kikapu, Vega-Badillo & Zaragoza-Caballero & Ríos-Ibarra, 2021

Vega-Badillo, Viridiana, Zaragoza-Caballero, Santiago & Ríos-Ibarra, Jessica Jazmín, 2021, New species of the genus Cenophengus LeConte 1881 (Coleoptera; Phengodidae) from Mexico and Guatemala, Zootaxa 5023 (2), pp. 223-238 : 227

Cenophengus kikapu sp. nov.

( Figs. 7–11 )

Etymology. The term kikapu alludes to the Kikapu tribe that lives in Coahuila, Mexico.

Diagnosis. Cenophengus kikapu is similar in appearance to Cenophengus sonorensis Zaragoza 2008 , but can be recognized by the following characters. In Cenophengus sonorensis the head is almost as wide as the pronotum, whereas in C. kikapu the head is wider than the pronotum. In addition the terminal maxillary palpomere is as long as the preceding three combined in C. sonorensis , whereas in C. kikapu it is longer than the preceding three combined.

Description, male. Total body length 6.4 mm; total body width 0.8 mm. Dark brown body, except for the pronotum, legs and the last two abdominal segments that are amber colored ( Figs. 7, 8 ).

Head. Surface concave, wider (0.86 mm) than long (0.52 mm), measured dorsally to exterior margins almost as wide (0.86 mm) as pronotum (0.8 mm), integument chagrined, coarsely punctuate, each puncture bearing an amber seta; interantennal distance (0.09 mm), half of the length of 1 st antennomere; large eyes, hemispherical, prominent, finely faceted, longer (0.45 mm) than wide (0.36 mm); interocular distance equal to length of eyes; short antennae (1.58 mm) barely reaching pronotal posterior margin; 1 st antennomere (0.15 mm) longer than next two combined, 3 rd cup-shaped, 4 th in length 0.12, 5 th to 11th about equal in length (0.15 mm), 12 th (terminal) lanceolate (0.2 mm), antennal rami lanceolate, two times longer than respective antennomere; anterior border of frons concave; clypeus bilobed; terminal maxillary palpomere robust securiform, as long as preceding three combined (0.3 mm); terminal labial palpomere spindle-shaped, five times longer than preceding (0.1 mm).

Thorax. Pronotum longer (1.07 mm) than wide (0.8 mm); tegument chagrined, coarsely punctuate; each puncture bearing an amber seta, convex disc, one longitudinal excavation on each side of midline, anterior border concave, posterior almost straight with a middle notch, lateral margins almost parallel, anterior and posterior angles rounded; scutellum almost quadrangular, posterior border truncated, shiny integument, thickly dotted, each puncture with a yellowish seta; elytra almost three and a half times as long (1.95 mm) as wide (0.53 mm), convex; hindwings with radial cell closed, r3 vein (r3) absent, r4 vein (r4) developed, the posterior radial vein (RP) reduced (length less than half the size of the vein MP1+2), medial field containing six main veins: MP3, MP4, CuA1, CuA2, CuA3+4, and AA 3+4; CuA and AA well marked and cubitoanal cell closed, AP3+4 long.; 1 st and 2 nd tarsomeres of pro-, meso- and metathoracic legs about equal in length.

Abdomen. Integument shiny, dotted and silky, penultimate sternite sinuate, last sternite cleft. Aedeagus: with three teeth at the apex of paramere ( Figs. 9–11 ).

Immatures and females. Unknown.

Distribution: Coahuila, Mexico ( Fig. 6 ).

Type material. Holotype (male) (COL-TIP-03587): “ Mexico: El Cañón, Cuatro/ Ciénegas, Coahuila, Col. MTO/y UOGV / 21-feb-2012 col./ nocturna luz blanca” . Paratypes (COL-TIP-03588, COL-TIP-03589): two males, same data. Deposited at CNIN .

Figures

FIGURE 6. Distribution of Cenophengus.

FIGURES 7–11. Cenophengus kikapu sp. nov.; Figs. 7, 8, dorsal and ventral view; Figs. 9, 10, 11 dorsal, lateral and ventral view of the aedeagus.