Cenophengus hnogamu

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 : 224-227

Cenophengus hnogamu ̱i sp. nov.

( Figs. 1–5 )

Etymology. The term hñoga´mu̱i means happy or quiet life in the Hñähñu (Otomí) language, which is spoken in the valley of Mezquital, Hidalgo, Mexico. The name of this species is assigned with the firm wish that happiness and peace prevail in the life of indigenous people.

Diagnosis. Cenophengus hnogamu ̱i is similar in appearance to Cenophengus munizi Zaragoza-Caballero 2018 , but can be recognized by the following characters: the length of the antennae, which are shorter in C. munizi than in C. hnogamui ; the antennal rami are twice as long as respective antennomere in C. munizi , whereas in C. hnogamui these are 1.5 times as long as respective antennomere. C. munizi can also be distinguished on the basis of the terminal maxillary palpomere, which is smaller than the sum of the previous three, on the other hand it is as long as the preceding three combined in C. hnogamui . Finally, elytral length is longer in C. hnogamu ̱i than in C. munizi , with C. hnogamu ̱i also bearing a whitish tip at the distal apex of each elytra which is not present in C. munizi .

Description, male. Total body length 4.6 mm; total body width 0.61 mm. Dark brown body, except for the first three antennomeres and the posterior part of the elytra which are amber in color ( Figs. 1, 2 ).

Head. Surface concave, wider (0.59 mm) than long (0.55 mm), measured dorsally to exterior margins almost as wide (0.59 mm) as pronotum (0.61mm), integument smooth, coarsely punctuate, each puncture bearing an amber seta; interantennal distance longer than half length of 1 st antennomere (0.11 mm); small eyes, hemispherical, prominent, finely faceted, longer (0.26 mm) than wide (0.16 mm); interocular distance greater than the length of the eyes (0.34 mm); long antennae (2.35 mm) reaching pronotal posterior margin; 1 st antennomere as long (0.15mm) as the next two combined, 3 rd antennomere cup-shaped, 4 th in length (0.1 mm), 5 th to 11 th about equal in length (0.23 mm), 12 th (terminal) lanceolate (0.3 mm), antennal rami lanceolate, one and a half times longer than respective antennomere; anterior border of the frons concave; clypeus bilobed; terminal maxillary palpomere securiform, as long as the preceding three combined (0.2 mm); terminal labial palpomere spindle-shaped, three times longer than the preceding (0. 06 mm).

Thorax. Pronotum longer (0.57 mm) than wide (0.35 mm); tegument smooth, coarsely punctuate; each puncture bearing an amber seta, convex disc with one longitudinal excavation on each side of the midline, anterior border concave, posterior border almost straight without a middle notch, lateral margins almost parallel, anterior and posterior angles rounded; scutellum almost quadrangular, posterior border bilobed, shiny integument, thickly dotted, each puncture with an amber colored seta; elytra almost six times as long (2.25 mm) as wide (0.37 mm), convex; hindwings with radial cell close, r3 vein presented, r4 vein developed, the posterior radial vein (RP) reduced (length less than half the size of the vein MP1+2), medial field containing five main veins: MP3, MP4, CuA1, CuA2 and CuA3+4; AA well marked and cubitoanal cell open, AP3+4 long; 1 st and 2 nd tarsomeres of pro-, meso- and metathoracic legs about equal in length.

Abdomen. Integument shiny, punctured, densely setose, penultimate sternite with posterior margin sinuate, last sternite cleft. Aedeagus: with three teeth at the apex of paramere ( Figs. 3–5 ).

Immatures and females. Unknown

Distribution: Hidalgo, Mexico ( Fig. 6 ).

Type material. Holotype (male) (COL-TIP-03591): “ Mexico: Hidalgo, Huasca de/ Ocampo, Rancho Santa Elena ,/ Presa San Carlos , 2430 msnm/20°08´04.5´´ N 98°30´49.9´´ W./ 05/IX–03/X/2005. Trampa/ Malaise. Col. A. Contreras / Meléndez y Reynoso”.

Paratypes: three males, same data. Deposited at CNIN (COL-TIP-03592; COL-TIP-03593) and at CC-UAEH (PHE-002-CC-UAEH) .

Figures

FIGURE 6. Distribution of Cenophengus.

FIGURES 1–5. Cenophengus hnogamu̱i sp. nov.; Figs.1, 2 dorsal, and ventral view; Figs. 3, 4, 5 dorsal, lateral and ventral view of the aedeagus.