Difference between revisions of "Sternopriscus tarsalis"
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==Type material== | ==Type material== | ||
| − | Holotype of ''S. tarsalis'': "Type 162.", "Holotype", "Sydney", "''Sternopriscus tarsalis'' n. sp.", "Sharp Coll. 1905-313." (BMNH). Lectotype of ''S. oscillator'': "Lectotype", "Type", "Adelaide Austr.", "S.Australia", “Sharp Coll. 1905-313.", "433 ''oscillator''", "''Sternopriscus oscillator'' Types", "''Sternopriscus oscillator'' {{aut|Sharp}} Det. {{aut|C.Watts 1974}}" (BMNH). Paralectotype of ''oscillator'' {{aut|Sharp}} (on the same card as lectotype): with the same data as lectotype but "Paralectotype" (BMNH). | + | Holotype of ''S. tarsalis'': male, "Type 162.", "Holotype", "Sydney", "''Sternopriscus tarsalis'' n. sp.", "Sharp Coll. 1905-313." (BMNH). Lectotype of ''S. oscillator'': male, "Lectotype", "Type", "Adelaide Austr.", "S.Australia", “Sharp Coll. 1905-313.", "433 ''oscillator''", "''Sternopriscus oscillator'' Types", "''Sternopriscus oscillator'' {{aut|Sharp}} Det. {{aut|C.Watts 1974}}" (BMNH). Paralectotype of ''oscillator'' {{aut|Sharp}} (on the same card as lectotype): female with the same data as lectotype but "Paralectotype" (BMNH). |
==DNA Sequences== | ==DNA Sequences== | ||
Revision as of 13:26, 26 October 2011
Ordo: Coleoptera
Familia: Dytiscidae
Genus: Sternopriscus
Name
Sternopriscus tarsalis Sharp, 1882
Type locality
Sydney, Australia
Type material
Holotype of S. tarsalis: male, "Type 162.", "Holotype", "Sydney", "Sternopriscus tarsalis n. sp.", "Sharp Coll. 1905-313." (BMNH). Lectotype of S. oscillator: male, "Lectotype", "Type", "Adelaide Austr.", "S.Australia", “Sharp Coll. 1905-313.", "433 oscillator", "Sternopriscus oscillator Types", "Sternopriscus oscillator Sharp Det. C.Watts 1974" (BMNH). Paralectotype of oscillator Sharp (on the same card as lectotype): female with the same data as lectotype but "Paralectotype" (BMNH).
DNA Sequences
Not yet available.
Description
Measurements. Males: TL = 2.64 - 2.80 mm, TL-H = 2.40 - 2.52 mm; width = 1.28 - 1.32 mm. Females: TL = 2.28 - 2.36 mm, TL-H = 2.08 - 2.12 mm; width = 1.16 - 1.18 mm.
Colour: Head testaceous, posterior angles broadly black, or with testaceous area reduced to two apical spots and one basal spot; pronotum testaceous, front and rear edges broadly black, joined in midline, or with testaceous area reduced to narrow marginal stripes; elytron mottled dark brown to black and testaceous; ventral surface dark brown to black, sides of prosternum and. appendages lighter, middle and apical segments of antenna darker in most.
Sculpture: Reticulate. Punctures on head well-marked, moderately dense, rest of body closely and strongly rugose-punctate. Pronotal plicae well marked reaching to about half way along pronotum, area between them weakly depressed. Prothoracic process robust, subparallel, strongly rugose-punctate, not or only just reaching metasternum. Metacoxal lines short, strongly diverging towards front.
Male: Larger. Antenna stout, segments 6 - 11 somewhat expanded, increasingly so towards apex. Profemur with a short prominent ridge anteriorly near base, thickened; protibia thickened, strongly curved, with a broad well-marked basal excavation on inside. protarsus moderately expanded. Mesotibia a little curved; mesotarsus robust and greatly elongate. Median lobe of aedeagus moderately broad, tip bluntly pointed, weakly bulbous apically.
Female: Smaller. Appendages simple.
Habitat
Living in larger ponds and farm dams but also in sheltered embayments and side-pools of creeks and rivers (Fig. 2)
Behaviour
Distribution
Australia: S Gulfs, SE coastal, NE coastal, Murray Darling basin, Queensland, South Australia, New South Wales and Tasmania (Watts 1978, Lawrence et al. 1987). Widespread in southeastern Australia.
Images
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References
- Hendrich, L.; Watts, C.H.S. 2004: Taxonomic revision of the Australian genus Sternopriscus Sharp, 1882 (Coleoptera: Dytiscidae, Hydroporinae). Koleopterologische Rundschau, 74: 75–142.
