Tomarus pilcopataensis 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 : 67

Tomarus pilcopataensis López-García & Deloya, 2019

( Figs. 9I , 16L , 20C , 28C ; 47 )

Tomarus pilcopataensis López-García & Deloya, 2019: 134 . Original combination.

Male holotype (USNM) “ PERU: Cuzco; / Pilcopata , 600meters / 11-14 XII 1976 / J.B. Heppner, premontane / moist forest // Tomarus / pilcopataensis / López-García & / Deloya / HOLOTYPE ” Type locality: Pilcopata, Cuzco, Peru.

Description. Habitus as in Fig. 28C . Length 27.7 mm; humeral width 14.3 mm. Color dark reddish brown. Head: Frons coarsely rugose. Frontoclypeal region with 2 transverse tubercles separated by about 3 tubercle diameters. Clypeus narrowed towards apex, base 3.8 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 4.1 times an eye width. Pronotum: Surface with dense, large punctures. Apical tubercle small, rounded. Fovea shallow, striate, and about a 1/5 as wide as interocular distance. Scutellum: Surface with minute, sparse punctures. Elytra: First interval punctate, punctures similar in size to other intervals; sutural stria complete. Inner surface of apex with rounded, small tubercles forming 40 parallel lines. Abdomen: Apex of tergite IV with a triangular wide area with large, elongate tubercles forming 16 diagonal parallel lines. Pygidial surface coarsely and densely rugose ( Fig. 9I ); apex regularly rounded. Venter: Apex of prosternal process flat, longitudinally oval. Metasternum with short, sparse setae on anterior angles. Legs: Protibia tridentate with an additional inconspicuous, basal convexity. Metatibia not narrowed before apex, sides nearly parallel. Apex of metatibia slightly crenulate, with 33 spinules. Male genitalia: Spiculum gastrale without basal plates. Phallobase 1.1 times longer than parameres. Parameres with lateral teeth short, widely triangular; apical 4th narrowed, apices outwards ( Figs. 16L , 20C ). Internal sac with copulatory lamella and short lamellar spiny belt; with a complex of 3 spine-like, accessory lamellae, with dense granules at base.

Diagnosis. Tomarus pilcopataensis can be recognized by the following character combination: frontal tubercles transverse; pronotal fovea and tubercle inconspicuous; pronotum deeply and densely punctate ( Fig. 28C ); metasternum with sparse, short setae on anterior angles; and internal sac with a complex of 3 spine-like accessory lamellae. Tomarus pilcopataensis is similar to T. pumilus (Prell) and T. roigjunenti Neita and Ratcliffe, 2017 but differs from them by the completely rugose surface of the pygidium, Fig. 9I (rugose only on the basal 3rd in the other 2 species). The general shape of the parameres of T. pumilus ( Fig. 16N ) is similar, but in T. pilcopataensis the apical 4th is strongly narrowed, and the lateral medial teeth are wider and not directed backwards ( Fig. 16L ).

Distribution. This species is known only from its type locality (Pilcopata, Cuzco) in the moist premontane forest of Peru at 600 m.

Locality records ( Fig. 47 ). One examined specimen from USNM. PERU (1). Cuzco (1): Pilcopata.

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

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 47. Distributional records of Tomarus pilcopataensis, T. roigjunenti, and T. pumilus.