Cenophengus huatulcoensis Zaragoza-Caballero, 2008

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 huatulcoensis Zaragoza-Caballero, 2008

Fig. 12A-H

Cenophengus huatulcoensis Zaragoza-Caballero, 2008: 154.

Type locality.

Oaxaca, Mexico.

Type material examined.

Holotype ♂: "MEXICO: Oaxaca/ Parque Nal. Huatulco/ Estación el Sabanal/ 15° 48' 10" N, 98° 11' / 39.4"O. Alt. 109 m. / TL-1. 30/05/2005/ Col. S. Zaragoza" | CNIN. Paratype ♂: "MEXICO: Oaxaca/ Parque Nal. Huatulco/ Estación el Sabanal/ 15° 48' 10" N, 98° 11' / 39.4"O. Alt. 109 m. / TL-1. 30/05/2005/ Col. S. Zaragoza" (3) | CNIN; "MEXICO: Oaxaca-Parque Nal. Huatulco/ 1 km N Estación el Sabanal / TL-4. 15° 46' 10" N / 98° 11'40.6"O. 05-09-2005" "S. Zaragoza, F.A. Noguera/ E. Ramírez, E. González / y V. Jiménez” (2) | CNIN.

Remarks.

Cenophengus huatulcoensis is morphologically similar to C. baios , but can be distinguished by its shorter size, interantennal and interocular distances. In C. hualcoensis , the interantennal distance is equal to the length of the antennomere 1, whereas in C. baios , it is shorter. The interocular distance is 3.0 times longer than eye width in C. hualcoensis , in C. baios , it is 3.5 times longer. Additionally, in C. hualcoensis , the antennal rami are twice as long as the respective antennomere, whereas in C. baios , they are as long as the respective antennomere.

Diagnosis.

Integument smooth, antennae less than twice the length of the pronotum, antennal rami lanceolate, twice as long as respective antennomere, pronotum as long as wide and each elytron 3.1 times as long as wide; aedeagus with one spine at the inner apex of paramere.

Redescription.

Male. Body length 2.84-3.0 mm; maximum body width 0.46-0.48 mm (pronotum). Body dark, except for anterior part of head, anterior half of pronotum, legs and seventh abdominal segment yellow (Fig. 12A, B ). Head. Wider (0.50-0.55 mm) (0.525 ± 0.020 mm, n = 6) than long (0.28-0.32 mm) (0.3 ± 0.016 mm, n = 6) (Fig. 12C ), at eye level, wider than the pronotum, integument smooth, punctures 2.5 times as long as eye facets and separated by approximately 1 punctured diameter, each puncture bearing a yellow-brown seta; interantennal distance (0.06-0.08 mm) (0.07 ± 0.008 mm, n = 6) equal to the length of antennomere 1 (0.07-0.08 mm) (0.073 ± 0.005 mm, n = 6); eyes 1/2 as long as head in lateral view, longer (0.18-0.21 mm) (0.19 ± 0.010 mm, n = 6) than wide (0.10-0.12 mm) (0.11 ± 0.008 mm, n = 6); interocular distance (0.29-0.31 mm) (0.29 ± 0.007 mm, n = 6) 3 times eye width; short antennae (0.82-0.90 mm) (0.83 ± 0.031 mm, n = 6), less than twice the length of the pronotum; antennomere 1 (0.07-0.08 mm) (0.073 ± 0.005 mm, n = 6) shorter than the next two combined, antennomere 3 cup-shaped, 4 to 11 about equal in length (0.07-0.08 mm) (0.071 ± 0.004 mm, n = 6), 12 (terminal) (0.1-0.11 mm) (0.101 ± 0.004 mm, n = 6), antennal rami lanceolate in lateral view, twice as long as respective antennomere; terminal maxillary palpomere robust, securiform (0.12-0.13 mm) (0.121 ± 0.004 mm, n = 6), is shorter than the preceding three combined; terminal labial palpomere spindle-shaped (0.05-0.07 mm) (0.056 ± 0.008 mm, n = 6), 2.5 times as long as preceding one (0.02-0.03 mm) (0.025 ± 0.054 mm, n = 6). Thorax. Pronotum as long (0.47-0.51 mm) (0.48 ± 0.018 mm, n = 6) as wide (0.47-0.52 mm) (0.5 ± 0.018 mm, n = 6) (Fig. 12D ); integument smooth, punctures 2.5 times as long as eye facets and separated by approximately 1 punctured diameter, each puncture bearing a yellow-brown seta, disc convex, posterior margin curved, sides curved, anterior angles rounded and posterior acute; mesosternal suture incomplete; scutellum with small notch on posterior margin; each elytron 3.1 times as long (0.80-0.90 mm) (0.85 ± 0.035 mm, n = 6) as wide (0.25-0.28 mm) (0.275 ± 0.012 mm, n = 6), convex, without longitudinal costae, elytral apex right angled; posterior hind wings with posterior radial vein (RP) absent, radial cell closed and slightly defined, r3 and r4 vein absent, those of the anterior anal and posterior anal sectors, evident (Fig. 12E ). 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 one spine at the inner apex of paramere (Fig. 12F-H ).

Immatures and females.

Unknown.

Distribution.

Mexico: Oaxaca (Fig. 3 ).

Figures

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

Figure 12. Cenophengus hautulcoensis Zaragoza-Caballero, 2008, male. Habitus: A dorsal B ventral C head dorsal D pronotum dorsal E hind wing. Wing venation: CR = Radial Cell; 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.