Parathalassius ulrichi Shamshev

Cumming, Jeffrey M., 2017, Revision of the Nearctic Parathalassius Mik (Diptera: Dolichopodidae: Parathalassiinae), with a review of the world fauna, Zootaxa 4314 (1), pp. 1-64 : 48-49

publication ID

https://doi.org/ 10.11646/zootaxa.4314.1.1

publication LSID

lsid:zoobank.org:pub:6758Dc40-4356-4Adc-9Bd6-456652Ea5162

DOI

https://doi.org/10.5281/zenodo.6022516

persistent identifier

https://treatment.plazi.org/id/03E9879C-8D12-FFF9-57E0-2D14FDEF5CC5

treatment provided by

Plazi

scientific name

Parathalassius ulrichi Shamshev
status

 

Parathalassius ulrichi Shamshev View in CoL

Parathalassius ulrichi Shamshev 1998: 4 View in CoL .

Material examined. JAPAN: Hokkaido: Wakkasakanai, zone A~C, Sarobetsu , 1.vii.1967, T. Saigusa (3♂, 3♀, CNC) ; Wakkasakanai , 26.vi.1986, T. Saigusa (11♂, 3♀, ZFMK) ; Wakkanai, Sakanoshita Beach , 20.viii.1993, M. Satô (11♂, 14♀, ZFMK) .

Diagnosis. This relatively small to medium sized Palaearctic species is characterized by a head and thorax with dark setae, a subtriangular antennal postpedicel, longer lower male ommatrichia, 3 notopleural bristles (see Remarks), hyaline slightly brown-tinted wing, and dark legs with hind tarsomere 2 distinctly longer than tarsomere 3. Parathalassius ulrichi is very similar to the Nearctic P. sinclairi , but males have longer anterodorsal setae on the hind tibia, and possess thickened angled setae dorsally on the hind tarsus, rather than perpendicular peg-like setae. In addition, females of P. ulrichi have longitudinal ridges on the apex of sternite 8, unlike P. sinclairi with female sternite 8 rugose apically.

Distribution. This eastern Palaearctic species is known from the Kuril Islands (Chirinktotan, Kunashir and Shikotan) in the Russian Far East ( Shamshev 1998) and is here newly recorded from Hokkaido, Japan.

Remarks. In his description of P. ulrichi Shamshev (1998) indicated that this species has 2 notopleural bristles. The specimens from Hokkaido all have 3 notopleural bristles and I. Shamshev (pers. comm.) has confirmed that additional material collected from the type locality on the Kuril Islands also have 3 (or apparently very rarely 2) notopleural bristles.

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Dolichopodidae

Genus

Parathalassius

Loc

Parathalassius ulrichi Shamshev

Cumming, Jeffrey M. 2017
2017
Loc

Parathalassius ulrichi

Shamshev 1998: 4
1998
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