Tomarus maracaiboensis López-García & Deloya, 2019

López-García, Margarita M. & Deloya, Cuauhtémoc, 2022, Cladistic analysis reveals polyphyly of Tomarus (Coleoptera: Scarabaeidae: Dynastinae): new classification and taxonomic revision, Zootaxa 5211 (1), pp. 1-119 : 65-66

Tomarus maracaiboensis López-García & Deloya, 2019

( Figs. 9H , 16J , 20A , 28A ; 44 )

Tomarus maracaiboensis López-García & Deloya, 2019: 130 . Original combination.

Male holotype (USNM) “maracaibo // BB // Tomarus / maracaiboensis / López-García / & Deloya / HOLOTYPE ”. Two male paratypes (USNM, UNSM) “maracaibo // Tomarus / maracaiboensis / López-García / & Deloya / PARATYPE ” Type locality: Maracaibo , Venezuela.

Description. Habitus as in Fig. 28A . Length 20.9–23.3 mm; humeral width 10.0– 12.3 mm. Color brown to black. Head: Frons coarsely rugose. Frontoclypeal region with 2 conical tubercles separated by about 7 tubercle diameters. Clypeus narrowed towards apex, base 3 times wider than apex. Clypeal teeth triangular, separated by less than a tooth diameter. Mandible with 2 apical teeth and a lateral, narrowly rounded tooth. Mentum abruptly constricted at apical 3rd. Galea of maxilla with teeth 5 and 6 well developed. Interocular distance 3.3 times an eye width. Pronotum: Surface smooth on disc, with minute punctures on lateral margins. Apical tubercle small, rounded, not visible in lateral view. Fovea shallow, striate and about 1/2 as wide as interocular distance. Scutellum: Surface with deep, small punctures forming 2 lines parallel to margins. Elytra: First interval punctate, punctures smaller than on other intervals; sutural stria complete. Inner surface of apex with rounded, large tubercles forming 14–16 parallel lines. Abdomen: Apex of tergite IV with a triangular wide area with small, irregular tubercles forming 9–10 diagonal nearly parallel lines. Pygidial surface rugose on basal 4th and on lateral angles, disc with minute punctures ( Fig. 9H ), apex regularly rounded. Venter: Apex of prosternal process flat, transversely oval to rounded. Metasternum with minute setae. Legs: Protibia tridentate, with an additional small, basal undulation. Metatibia not narrowed before apex, sides nearly parallel. Apex of metatibia crenulate, with 8–9 spinules. Male genitalia: Spiculum gastrale without basal plates. Phallobase 1.2 times longer than parameres. Parameres with 2 pairs of dorso-lateral teeth, both equal in length and upwardly arched ( Figs. 16J , 20A ), apices short. Internal sac with copulatory lamella and short lamellar spiny belt; with a complex of 4 spine-like, accessory lamellae, with dense granules at base.

Diagnosis. Tomarus maracaiboensis can be recognized by the nearly impunctate pronotum; small pronotal tubercle not visible in lateral view; pronotal fovea shallow and narrow (1/3 as wide as interocular distance); protibia tridentate with a small basal undulation; and apex of metatibia with 8–9 spinules. It is similar to T. laevicollis , T. colombianus , and T. laticaudus but it can be differentiated by the parameres with the apex very short, the secondary teeth similar in shape and as long as the main teeth ( Figs. 16J , 20A ), and the internal sac with a complex of 4 spinelike accessory lamellae.

Distribution. Maracaibo in Venezuela.

Locality records ( Fig. 44 ). Three examined specimens from UNSM and USNM. VENEZUELA (3). Zulia (3): Maracaibo.

Natural history. Nothing is known about the natural history of T. maracaiboensis .

Figures

FIGURE 9. Pygidium of male. A) Euligyrus ebenus, B) Proculigyrus cicatricosus, C) Ligyrus (Anagrylius) cuniculus, D) L. (Ligyrus) fossor, E) L. (Ligyrus) paranaensis, F) Tomarus bituberculatus, G) T. colombianus, H) T. maracaiboensis, I) T. pilcopataensis, J) T. pullus, K) T. roigjunenti, L) T. rostratus.

FIGURE 16. Parameres in frontal view. A) Tomarus adoceteus, B) T. amazonicus, C) T. bituberculatus, D) T. colombianus, E) T. discrepans, F) T. gyas, G) T. laevicollis, H) T. laticaudus, I) T. maimon, J) T. maracaiboensis, K) T. maternus, L) T. pilcopataensis, M) T. pullus, N) T. pumilus, O) T. roigjunenti, P) T. rostratus, Q) T. selanderi, R) T. subtropicus.

FIGURE 20. Parameres in lateral view. A) Tomarus maracaiboensis, B) T. maternus, C) T. pilcopataensis, D) T. pullus, E) T. pumilus, F) T. roigjunenti, G) T. rostratus, H) T. selanderi, I) T. subtropicus.

FIGURE 28. Habitus of the species of Tomarus: A) Tomarus maracaiboensis, B) T. maternus, C) T. pilcopataensis, D) T. pullus, E) T. pumilus, F) T. roigjunenti, G) T. rostratus, H) T. selanderi, I) T. subtropicus. Scale bar: 5 mm.

FIGURE 44. Distributional records of Tomarus laevicollis, T. laticaudus, T. maracaiboensis, and T. colombianus.