Hydaticus pacificus Aube , 1838

Suprayitno, Nano, Narakusumo, Raden Pramesa, von Rintelen, Thomas, Hendrich, Lars & Balke, Michael, 2017, Taxonomy and Biogeography without frontiers - WhatsApp, Facebook and smartphone digital photography let citizen scientists in more remote localities step out of the dark, Biodiversity Data Journal 5, pp. 19938-19938 : 19938

Hydaticus pacificus Aube, 1838

Hydaticus pacificus Aubé 1838: 177; Wewalka 2016: 11; Nilsson and Hájek 2017: 94.

Materials

Type status: Other material. Occurrence: recordNumber: BALI_NS_2016_16; recordedBy: Suprayitno; individualCount: 2; lifeStage: adult; Taxon: scientificName: Hydaticuspacificus; class: Insecta; order: Coleoptera; family: Dytiscidae; Location: island: Bali; country: Indonesia; stateProvince: Bali; county: Karangasem; locality: Jalan Karangasem - Seraya ; verbatimElevation: 350m; locationRemarks: https://goo.gl/maps/ftkQnXGqTjC2; decimalLatitude: -8.410798; decimalLongitude: 115.6815772; Event: samplingProtocol: collected with strainer; eventDate: 2016-06-15; Record Level: institutionCode: MZB; collectionCode: Entomology; ownerInstitutionCode: Museum Zoologicum Bogoriense Type status: Other material. Occurrence: recordNumber: BALI_NS_2016_17; recordedBy: Suprayitno; individualCount: 4; lifeStage: adult; Taxon: scientificName: Hydaticuspacificus; class: Insecta; order: Coleoptera; family: Dytiscidae; Location: island: Bali; country: Indonesia; stateProvince: Bali; county: Karangasem; locality: Jalan Karangasem - Seraya ; verbatimElevation: 250m; locationRemarks: https://goo.gl/maps/vp4fVVnqXsy; decimalLatitude: -8.426531; decimalLongitude: 115.661005; Event: samplingProtocol: collected with strainer; eventDate: 2016-06-02; Record Level: institutionCode: MZB; collectionCode: Entomology; ownerInstitutionCode: Museum Zoologicum Bogoriense Type status: Other material. Occurrence: recordNumber: BALI_NS_2016_18; recordedBy: Suprayitno; individualCount: 1; lifeStage: adult; Taxon: scientificName: Hydaticuspacificus; class: Insecta; order: Coleoptera; family: Dytiscidae; Location: island: Bali; country: Indonesia; stateProvince: Bali; county: Karangasem; locality: Jalan Karangasem - Seraya ; verbatimElevation: 270m; locationRemarks: https://goo.gl/maps/MRMj83F9AAz; decimalLatitude: -8.421717; decimalLongitude: 115.669085; Event: samplingProtocol: collected with strainer; eventDate: 2016-06-04; Record Level: institutionCode: MZB; collectionCode: Entomology; ownerInstitutionCode: Museum Zoologicum Bogoriense Type status: Other material. Occurrence: recordNumber: BALI_NS_2016_19; recordedBy: Suprayitno; individualCount: 3; lifeStage: adult; Taxon: scientificName: Hydaticuspacificus; class: Insecta; order: Coleoptera; family: Dytiscidae; Location: island: Bali; country: Indonesia; stateProvince: Bali; county: Karangasem; locality: Jalan Karangasem - Seraya ; verbatimElevation: 270m; locationRemarks: https://goo.gl/maps/GJpzEosySy12; decimalLatitude: -8.421574; decimalLongitude: 115.671857; Event: samplingProtocol: collected with strainer; eventDate: 2016-06-05; Record Level: institutionCode: MZB; collectionCode: Entomology; ownerInstitutionCode: Museum Zoologicum Bogoriense Type status: Other material. Occurrence: recordNumber: BALI_NS_2016_20; recordedBy: Suprayitno; individualCount: 28; lifeStage: adult; Taxon: scientificName: Hydaticuspacificus; class: Insecta; order: Coleoptera; family: Dytiscidae; Location: island: Bali; country: Indonesia; stateProvince: Bali; county: Karangasem; locality: Jalan Karangasem - Seraya ; verbatimElevation: 170m; locationRemarks: https://goo.gl/maps/fAT8hjLK4Y82; decimalLatitude: -8.417738; decimalLongitude: 115.688551; Event: samplingProtocol: collected with strainer; eventDate: 2016-06-16; Record Level: institutionCode: MZB; collectionCode: Entomology; ownerInstitutionCode: Museum Zoologicum Bogoriense Type status: Other material. Occurrence: recordNumber: BALI_NS_2016_23; recordedBy: Suprayitno; individualCount: 2; lifeStage: adult; Taxon: scientificName: Hydaticuspacificus; class: Insecta; order: Coleoptera; family: Dytiscidae; Location: island: Bali; country: Indonesia; stateProvince: Bali; county: Badung; locality: Desa Ungasan near Pecatu ; verbatimElevation: 140m; locationRemarks: https://goo.gl/maps/p64cgybQRDF2; decimalLatitude: -8.840126; decimalLongitude: 115.144003; Event: samplingProtocol: collected with strainer; eventDate: 2016-06-20; Record Level: institutionCode: MZB; collectionCode: Entomology; ownerInstitutionCode: Museum Zoologicum Bogoriense

Distribution in Bali

See Fig. 25.

Geographic range outside Bali

SE Asia, Sunda islands as far east as Tanimbar; not on Borneo or Sulawesi. This species was first recorded for Bali by Wewalka (2016) based on photography we presented on FaceBook.

Ecology

The species occupies stagnant water bodies. In Bali, it was often found in pools of intermittent streams (Figs 26, 27, 28, 29).