Tomarus laticaudus 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 : 63-64

Tomarus laticaudus López-García & Deloya, 2019

( Figs. 13H , 16H , 19H , 23C , 27H ; 44 )

Tomarus laticaudus López-García & Deloya, 2019: 129 . Original combination.

Male holotype (USNM) “FF // CorazalCZ / Pan IV2711 / AugBusck // Tomarus laticaudus / López-García & Deloya / HOLOTYPE ”. Two male and three female paratypes ( USNM) “CorazalCZ / Pan IV 27 11 / AugBusck // Tomarus laticaudus / López-García & Deloya / PARATYPE ”. Male paratype ( USNM) “Corazal / CZ / Pn / iv.7.12 / A.Busck / light // Tomarus laticaudus / López-García & Deloya / PARATYPE”. Female paratype ( USNM) “Diablo Hts. / CZ / Pn / 3.v.1971 / W.E. Bivin // Tomarus laticaudus / López-García & Deloya / PARATYPE ”. Male paratype ( UNSM) and four female ( USNM) paratypes “Arc-light / Ancon, C.Z. / Pan. 12. V. II / AH Jennings // Tomarus laticaudus / López-García & Deloya / PARATYPE ”. Four female paratypes ( UNSM, USNM) “arc-light globe / Ancon, CZPan / Apr. 1911 Kraft // Tomarus laticaudus / López-García & Deloya / PARATYPE ”. Female paratype ( UNSM) “Paraiso CZ / iv.24.11 / August Busck // Tomarus laticaudus / López-García & Deloya / PARATYPE ” Type locality: Corozal , Panama .

Description. Habitus as in Fig. 27H . Length 18.8–24.4 mm; humeral width 9.9–12.2 mm. Color reddish 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 without or with sparse, small punctures, not forming 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 lateral angles, disc with minute punctures; apex regularly rounded in male, strongly dilated in female. Venter: Apex of prosternal process flat, transversely oval to rounded. Metasternum with minute setae. Legs: Protibia tridentate, with an additional small, basal denticle. Metatibia not narrowed before apex, sides nearly parallel. Apex of metatibia crenulate; with 10–12 spinules. Male genitalia: Spiculum gastrale without basal plates. Phallobase 1.2 times longer than parameres. Parameres with 2 pairs of dorso-lateral teeth; basal tooth long, wide, and upwardly arched, apical tooth short and joined to the basal tooth ( Figs. 16H , 19H ). Internal sac with copulatory lamella and short lamellar spiny belt; with a complex of 7 spine-like, accessory lamellae, with dense granules at base ( Fig. 23C ).

Diagnosis. Tomarus laticaudus can be recognized by the nearly impunctate pronotum; small pronotal tubercle not visible in lateral view; pronotal fovea shallow and narrow (1/2 as wide as interocular distance); and protibia tridentate with an additional basal 4th tooth. It is similar to T. laevicollis but can be differentiated by the strongly dilated pygidial apex in female, and the parameres with the main teeth wider and joined to secondary teeth ( Figs. 16H , 19H ).

Distribution. Panama ( López-García & Deloya 2019).

Locality records ( Fig. 44 ). 21 examined specimens from UNSM and USNM. PANAMA (21). Los Santos (8): Corozal, Paraíso. Panamá (12): Ancon ; Diablo Heights. No data (1) .

Natural history. The species inhabits tropical moist forest areas between 10 to 80 m. It has been found mainly in April using lights.

Figures

FIGURE 13. Female genital plates. A) Euligyrus ebenus, B) Proculigyrus cicatricosus, C) Ligyrus (Anagrylius) moroni, D) L. (Ligyrodes) sallaei, E) L. (Ligyrus) allonasutus, F) L. (Ligyrus) bidentulus, G) L. (Ligyrus) neglectus, H) Tomarus laticaudus, I) T. maternus, J) T. rostratus, K) T. subtropicus. Abbreviations: SCx: Subcoxite, Cx: Coxite.

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 19. Parameres in lateral 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.

FIGURE 23. Internal sac. A) Tomarus amazonicus, B) T. discrepans, C) T. laticaudus, D) T. maimon. Abbreviations: AL: Accessory lamellae, CL: Copulatory lamella, LSB: Lamellar spiny belt, Ra: Raspula, SD: Sclerotized diverticulum.

FIGURE 27. Habitus of the species of Tomarus: 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. Scale bar: 5 mm.

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