Dineutus (Rhombodineutus) pectoralis biakensis Brinck, 1983

Polhemus, Dan A., 2011, New distributional records for Gyrinidae (Insecta: Coleoptera) on New Guinea and nearby islands, with a checklist of the New Guinea species, Zootaxa 2900, pp. 51-68 : 54

publication ID

https://doi.org/ 10.5281/zenodo.203020

DOI

https://doi.org/10.5281/zenodo.6187701

persistent identifier

https://treatment.plazi.org/id/622E251D-FFB9-FF99-FF74-4A7DCDD5FEA6

treatment provided by

Plazi

scientific name

Dineutus (Rhombodineutus) pectoralis biakensis Brinck, 1983
status

 

Dineutus (Rhombodineutus) pectoralis biakensis Brinck, 1983

Fig. 2 View FIGURE 2

Dineutus (Rhombodineutus) pectoralis biakensis Brinck, 1983: 220 .

Material examined. INDONESIA, Papua Prov. [= former Irian Jaya Prov.]: 3 males, 15 females, Biak Is., Faknidi River (trib. to Wari River) at Faknidi, 150 m. [500 ft.], 0°53'32"S, 135°59'23"E, water temp. 25.5 °C., 12 January 1997, 14:30–15:30 hrs., CL 7038, D. A. Polhemus ( USNM).

Discussion. This subspecies is apparently endemic to the island of Biak ( Fig. 2 View FIGURE 2 ), and was previously known from a total of 6 specimens, the majority taken by J. L. Gressit at Kampong Landbouw ( Brinck, 1983), a locality not found on maps but noted by Gressitt as being near the center of the island.

More recent collections have come from the Faknidi River, which was a relatively slow flowing stream with a bed of sand, gravel and cobbles, partially shaded by disturbed upland rain forest growing on a limestone plateau. The gyrinids were taken from a large, deep pool formed at a road crossing. Based on known collections, this subspecies occupies the Biak/Supiori area of freshwater endemism (Area 8) as defined by Polhemus & Allen (2007).

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Gyrinidae

Genus

Dineutus

Loc

Dineutus (Rhombodineutus) pectoralis biakensis Brinck, 1983

Polhemus, Dan A. 2011
2011
Loc

Dineutus (Rhombodineutus) pectoralis biakensis

Brinck 1983: 220
1983
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