Batrachomatus daemeli (Hendrich, Lars & Balke, Michael 2013)
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Hendrich2013ZooKeys293, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Hendrich2013ZooKeys293">{{Citation See also the citation download page at the journal. |
Ordo: Coleoptera
Familia: Dytiscidae
Genus: Batrachomatus
Name
Batrachomatus daemeli Hendrich, Lars, 2013 – Wikispecies link – Pensoft Profile
- Batrachomatus daemeli Hendrich, Lars, 2013, ZooKeys 293: 44-46.
Description
Description. Measurements. TL = 7.9-9.1 mm, TL-H = 7.3-8.2 mm; MW = 4.0-4.6 mm. Colour. Dorsal surface shiny, head, pronotum and elytra black, legs dark reddish, antennae and palpi reddish pale. Some specimens with reddish basal markings on elytra (Figs 1, 2, 3). Structure and sculpture. Body outline oblong oval. Dorsal surface densely and evenly covered with small punctures, and with a very fine, almost subobsolete close reticulation with large meshes. Serial punctures on elytron distinct, large and shallow. Ventral surface finely and densely punctate. Prothoracic process broad, flat, apex pointed, broadly grooved in middle for whole length, sides strongly margined. Metacoxal lines raised, well separated, reaching almost to hind margin of metaventrite, diverging a little anteriorly. Male. Pro- and mesotarsi dilated and stouter than in female, furnished beneath with dense, short, stout setae arranged in groups, many of the setae ending in minute suction cups. Aedeagus: median lobe in lateral (Figs 8a) and in ventral view (Figs 8b); paramere (Fig. 8c). Variability. A very variable species in size and colour. Specimens having reddish shoulders of various form and extension were named Batrachomatus burnsi Mouchamps, 1964 (Fig. 2, large red patch on the shoulder) and Batrachomatus burnsi var. obscurior (smaller and interrupted reddish patch on shoulder). Such specimens can be found all over the species distributional range. According to our study of the complete material of Batrachomatus daemeli two different forms can be recognized: larger specimens (see measurements above) with larger median lobes and smaller specimens [Measurements: TL = 7.3-8.0 mm, TL-H = 6.5-7.05 mm; MW = 3.6-3.9 mm] (Fig. 3) with smaller and less elongated median lobes. The latter have been collected at several places in New South Wales and Victoria, sometimes syntopic with the larger form. Despite the fact that intergrades between the typical Batrachomatus daemeli and the "smaller form" have been found, for some time we even have been strongly tempted to describe those smaller specimens as another new species. On the other hand we have not been able to find any constant extern morphological character-except of the size-and also the shapes of the male genitalia are more or less the same. In addition, in our cox1 tree (Fig. 15) specimens of both forms aregrouped in the same clade.
Distribution
Distribution. The most widespread and common species of the genus in Australia (Fig. 13). From the Atherton Tableland in Queensland along the east coast of New South Wales, Canberra area, to western Victoria and north-eastern Tasmania (Watts 1978).
Taxon Treatment
- Hendrich, Lars; Balke, Michael; 2013: Revision of Australian Matini diving beetles based on morphological and molecular data (Coleoptera, Dytiscidae, Matinae), with description of a new species ZooKeys, 293: 44-46. doi
This treatment was originally uploaded by Plazi, compare this treatment on Plazi. Unless this treatment has been substantially changed on Species-ID, Plazi requests to maintain a link back to the original repository.
