Exocelina manokwariensis hendrichi, Shaverdo, Helena, Panjaitan, Rawati & Balke, Michael, 2016

Shaverdo, Helena, Panjaitan, Rawati & Balke, Michael, 2016, A new, widely distributed species of the Exocelinaekari-group from West Papua (Coleoptera, Dytiscidae, Copelatinae), ZooKeys 554, pp. 69-85 : 77-79

Taxon classification Animalia Coleoptera Dytiscidae

Exocelina manokwariensis hendrichi ssp. n. Figs 5, 6

Exocelina undescribed sp. MB1321: Toussaint et al. 2014: Supplementary figs 1-4, tab. 2.

Type locality.

Indonesia: West Papua Province: Fak-Fak Regency, Kalimati, 4 km N Fak-Fak, approximately 02°53.76'S; 132°18.07'E.

Type material.

Holotype: male "IRIAN JAYA: Fak-Fak Kalimati, 4 km N Fak-Fak 260 m, 8-9.8.1991 Balke & Hendrich (IR 27)" (MZB). Paratype: 26 males, 22 females with the same label as the holotype, one female additionally with a green label "M.Balke 3261" (MZB, NHMW, ZSM). 6 males "IR 27-W.New Guinea, Fak-Fak, Kali Mati 4km N F.-F., 260 m, 8.-9.viii.1991 Balke & Hendrich leg." (( NHMW, ZSM). 44 males, 31 females "West New Guinea/Fak-Fak/IR27 Kali Mati, 4 km N of Fak-Fak 260 m, 8. & 9.8.1991 leg: Balke & Hendrich" (NHMW, ZSM). 2 males, 1 female "Indonesia: Irian Jaya Barat, Fak Fak, 310m, 23.ii.2006, Tindige", with green labels "M.Balke 1321", "M.Balke 4190", "M.Balke 4191" respectively (ZSM). 1 female "Indonesia: Irian Jaya Barat, Fak Fak, 310m, 23.ii.2006, 2 53.756S 132 18.07E, Tindige (Fak-Fak)" (ZSM).

Description.

As nominative subspecies, except for the following characters.

Size: TL-H 3.3-3.85 mm, TL 3.75-4.45 mm, MW 1.75-2.1 mm; holotype: TL-H 3.75 mm, TL 4.3 mm, MW 2 mm.

Coloration: Dorsal surface more or less uniform reddish brown to dark brown, paler on clypeus, pronotal sides, along elytral suture, and sometimes on vertex (Fig. 5).

Structures: Base of prosternum and neck of prosternal process with distinct ridge, rounded and smooth anteriorly.

Male: Antennomeres 3-4 strongly enlarged and triangular (3 distinctly larger than 4), 5 distinctly enlarged, 6-7 somewhat enlarged (Fig. 6A). Protarsomere 5 ventrally with anterior row of 10 and posterior row 6 short setae (Fig. 6B). Abdominal ventrite 6 with 7-9 lateral striae on each side, slightly truncate apically. Median lobe larger. Its apex slightly asymmetric in ventral view and concave, with relatively long tip in lateral view (Fig. 6C, D). Subdistal part of paramere larger, with more or less numerous, thick flattened setae (Fig. 6E).

Female: Antennae simple, abdominal ventrite 6 broadly rounded apically, without striae.

Comparation with the other subspecies.

Exocelina manokwariensis hendrichi ssp. n. can be separated from all other subspecies by the shape of the apex of its median lobe: slightly asymmetric in ventral view and concave, with relatively long tip in lateral view.

Distribution.

Indonesia: West Papua Province: Fak-Fak Regency (Fig. 9). Exocelina manokwariensis hendrichi ssp. n. is the only known Exocelina species in this region.

Etymology.

The species is named for our colleague and friend Lars Hendrich who collected this species. The species name is a noun in the genitive case.