Novochares tambopatense, Short & Girón, 2023

Short, Andrew Edward Z. & Giron, Jennifer C., 2023, Revision of the Neotropical water scavenger beetle genus Novochares Giron & Short (Coleoptera, Hydrophilidae, Acidocerinae), ZooKeys 1171, pp. 1-112 : 1

Novochares tambopatense sp. nov.

Figs 28K, L , 29D

Type material.

Holotype (male): "PERU: Madre de Dios: Tambopata/ - 12.53550°S, - 69.01205°W, 190m/ Kawsay Biological Station/ margin of forested creek; 3.vi.2022/ PE22-0603-02A; leg. Short et al." (MHNSM). Paratypes (5 exs.): Peru: Madre de Dios: same data as holotype except large detrital pool nr. Banana area, PE22-0603-02B (3, MHNSM, SEMC); same data as holotype except 2.vi.2022, swamp pools by creek, PE22-0602-02A (2, SEMC).

Differential diagnosis.

See differential diagnosis of N. tectiformis .

Description.

Body length 7.0-7.9 mm. Coloration: Dorsal surfaces dark brown and sheeny, with slightly paler margins of pronotum and elytra. Head: Maxillary palps nearly 1.4 × longer than width of head, uniformly orange to brown in color. Thorax: Ground punctation on pronotum and elytra dense and very shallowly impressed. Elytra without rows of serial punctures, each with very faint rows (one dorsal and two or three lateral) of scarce and weakly marked systematic punctures. Prosternum very weakly and broadly convex. Posterior elevation of mesoventrite with posterior face somewhat bisinuate and medial longitudinal ridge extending anteriorly (resembling a nose). Abdomen: Apical emargination of fifth ventrite relatively deep, U-shaped. Aedeagus: (Fig. 28K, L ) Overall shape pear-like, 2.4 × longer than wide; lateral projection on apical region of outer margin of each paramere strongly pointed; at closest point, dorsal inner margins of parameres separated by distance as wide as a paramere; dorsal plate of median lobe gradually narrowing towards base of fork; arms of dorsal plate of median lobe gradually narrowing towards apex, apically pointed and weakly converging, nearly 0.3 × length of dorsal plate of median lobe; notch between arms broadly and roundly projected at base, at base nearly as broad as neck; ventral plate of median lobe strongly sclerotized, triangular, apically pointed, apex extending to mid-length of arms of dorsal plate; basal piece 0.36 × length of a paramere. In lateral view, aedeagus flattened, with ventral outline of parameres 4.5 × longer than greatest width near base; dorsal outline nearly straight along basal 2/3.

Etymology.

Named after the people from the Tambopata region in Peru.

Distribution.

Known only from Kawsay Biological Station in Peru (Fig. 29D ).

Habitat.

This species was collected from several large swampy pools full of detritus in the forest.

Figures

Figure 28. Aedeagi of the Novochares tectiformis species group A-C N. piaroa D-F N. florifer G-J N. pume K, L N. tambopatense A, D, G, K dorsal view B, H ventral view C, F, I lateral view E, J, L oblique view.

Figure 29. Distribution of Novochares tectiformis species group A N. duo (red), N. bolivianus (yellow), N. atlanticus (blue), N. danta (green) B N. coya (red), N. yora (yellow), N. xingu (blue), N. mura (green), N. trifurcatus (purple) C N. tectiformis (red) D N. pume (red), N. piaroa (yellow), N. florifer (blue), N. mojenos (green), N. tambopatense (purple).