Deretrichia

{{Short description|Genus of leaf beetles}} {{Automatic taxobox | taxon = Deretrichia | display_parents = 2 | authority = Weise, 1913<ref name="Weise1913">{{cite journal|last=Weise|first=J.|year=1913|title=Chrysomeliden und Coccinelliden|url=https://www.zin.ru/animalia/coleoptera/addpages/Andrey_Ukrainsky_Library/References_files/Weise13c.pdf|journal=Nova Guinea: Résultats de l'Expédition Scientifique Néerlandaiso à la Nouvelle Guinée|volume=9|pages=423–446}}</ref> | type_species = ''Rhyparida tibialis'' | type_species_authority = Baly, 1867 }}

'''''Deretrichia''''' is a genus of leaf beetles in the subfamily Eumolpinae. It is known from Australia, New Guinea and associated islands in the Australasian realm, east of Wallace's Line, with the exception of one doubtful record from Borneo.<ref name="Selman1963">{{cite journal|last=Selman|first=B. J.|year=1963|title=A revision of the genus ''Deretrichia'' Weise (Coleoptera: Eumolpidae)|url=https://biodiversitylibrary.org/page/2249478|journal=Bulletin of the British Museum (Natural History)|volume=14|pages=155–196|doi=10.5962/bhl.part.8781|doi-access=free}}</ref> It was first erected by the German entomologist Julius Weise in 1913 for six species transferred from ''Rhyparida''. In 1963, the genus was revised by Brian J. Selman, who described many new species from unique specimens and transferred some more species from ''Rhyparida''.<ref name="Selman1963"/>

The described species are considered to be rare, and some are possibly already extinct. In almost every location that ''Deretrichia'' has been found, very few specimens were collected, and they were rarely collected again in the same locations, possibly because of deforestation in those areas. Selman (1963) wrote that "recently ''Deretrichia'' specimens have been collected only in regions, e.g. New Guinea, where large areas of the coastal forest belt had survived".<ref name="Selman1963"/>

''Deretrichia'' can be distinguished from ''Rhyparida'' by the location of setae on the front of the prothorax. In ''Rhyparida'', a single seta is found on each front corner of the pronotum. In ''Deretrichia'', these setae are instead found lower down on the sides of the prothorax, at the point where the corners of the episternum and the lateral arms of the prosternum meet.<ref name="Selman1963"/>

==Species== {{div col|colwidth=26em}} * ''Deretrichia alternata'' (Baly, 1864)<ref name="Baly1864">{{cite book|last=Baly|first=J. S.|year=1864|title=Descriptions of new genera and species of Phytophaga|url=https://books.google.com/books?id=lQkAAAAAQAAJ&pg=PA1|publisher=J.S. Baly|place=Stationer's Hall}}</ref> – Bacan, Halmahera * ''Deretrichia amboinensis'' Selman, 1963<ref name="Selman1963"/> – Ambon * ''Deretrichia andannensis'' (Jacoby, 1894)<ref name="Jacoby1894">{{cite journal|last=Jacoby|first=M.|year=1894|title=Descriptions of new genera and species of phytophagous Coleoptera obtained by W. Doherty in the Malayan Archipelago|url=https://www.biodiversitylibrary.org/page/3857542|journal=Novitates Zoologicae|volume=1|pages=267–330|doi=10.5962/bhl.part.24565}}</ref> (andaiensis?) – Western New Guinea (Andai, Manokwari) * ''Deretrichia approximata'' (Baly, 1867)<ref name="Baly1867">{{cite journal|last=Baly|first=J. S.|year=1867|title=Phytophaga Malayana; a revision of the phytophagous beetles of the Malay Archipelago, with descriptions of the new species collected by Mr. A. R. Wallace|url=https://biodiversitylibrary.org/page/14694386|journal=Transactions of the Entomological Society of London|series=3|volume=4|pages=1–300|doi=10.1111/j.1365-2311.1866.tb01857.x}}</ref> – Misool * ''Deretrichia australis'' Selman, 1963<ref name="Selman1963"/> – Australia: Queensland (Cairns) * ''Deretrichia batchianica'' Selman, 1963<ref name="Selman1963"/> – Bacan * ''Deretrichia bipustulata'' (Baly, 1867)<ref name="Baly1867"/> – Waigeo * ''Deretrichia brunnea'' (Baly, 1867)<ref name="Baly1867"/> – Bacan * ''Deretrichia bryanti'' Selman, 1963<ref name="Selman1963"/> – Halmahera * ''Deretrichia cyclopensis'' Selman, 1963<ref name="Selman1963"/> – Western New Guinea (Cyclops Mountains) * ''Deretrichia doryensis'' Selman, 1963<ref name="Selman1963"/> – Western New Guinea (Manokwari) * ''Deretrichia flebilis'' Selman, 1963<ref name="Selman1963"/> – Ternate * ''Deretrichia frontalis'' (Baly, 1867)<ref name="Baly1867"/> – Western New Guinea (Manokwari) * ''Deretrichia giloloensis'' Selman, 1963<ref name="Selman1963"/> – Halmahera * ''Deretrichia guadalcanalensis'' Selman, 1963<ref name="Selman1963"/> – Solomon Islands (Guadalcanal) * ''Deretrichia hincksi'' Selman, 1963<ref name="Selman1963"/> – Western New Guinea (Manokwari) * ''Deretrichia inornata'' (Jacoby, 1894)<ref name="Jacoby1894"/> – Tanimbar * ''Deretrichia intermedia'' (Baly, 1867)<ref name="Baly1867"/> – Waigeo * ''Deretrichia laevifrons'' (Jacoby, 1884)<ref name="Jacoby1884">{{cite journal|last=Jacoby|first=M.|year=1884|title=Description of new genera and species of Phytophagous Coleoptera from the Indo-Malayan and Austro-Malayan sub-regions, contained in the Genoa Civic Museum. First Part|url=https://biodiversitylibrary.org/page/7847636|journal=Annali del Museo Civico di Storia Naturale di Genova|volume=20|pages=188–233}}</ref> – Western New Guinea (Sorong) * ''Deretrichia laticollis'' (Baly, 1867)<ref name="Baly1867"/> – Borneo (doubtful) * ''Deretrichia livida'' Selman, 1963<ref name="Selman1963"/> – Western New Guinea (Cyclops Mountains) * ''Deretrichia minuta'' Selman, 1963<ref name="Selman1963"/> – Tasmania * ''Deretrichia morokensis'' Selman, 1963<ref name="Selman1963"/> – Papua New Guinea (Moroka) * ''Deretrichia nigra'' Selman, 1963<ref name="Selman1963"/> – Halmahera * ''Deretrichia nigronotata'' Selman, 1963<ref name="Selman1963"/> – New Guinea ("Munika Bay") * ''Deretrichia pallidocaudata'' Selman, 1963<ref name="Selman1963"/> – Seram * ''Deretrichia papuensis'' Selman, 1963<ref name="Selman1963"/> – Papua New Guinea (Mafulu) * ''Deretrichia paumomuensis'' Selman, 1963<ref name="Selman1963"/> – Papua New Guinea (Angabanga River) * ''Deretrichia pinguis'' Selman, 1963<ref name="Selman1963"/> – Papua New Guinea (Mafulu) * ''Deretrichia plebeja'' (Jacoby, 1894)<ref name="Jacoby1894"/> – Western New Guinea (Yos Sudarso Bay, Cyclops Mountains) * ''Deretrichia rothschildi'' (Jacoby, 1894)<ref name="Jacoby1894"/> – Halmahera * ''Deretrichia ruginotum'' Selman, 1963<ref name="Selman1963"/> – Bacan, Halmahera * ''Deretrichia semipunctata'' (Baly, 1867)<ref name="Baly1867"/> – Bacan * ''Deretrichia separata'' (Baly, 1867)<ref name="Baly1867"/> – Bacan * ''Deretrichia sordida'' (Baly, 1864)<ref name="Baly1864"/> – Bacan, Ternate * ''Deretrichia sulcicollis'' (Baly, 1867)<ref name="Baly1867"/> – Sula Islands * ''Deretrichia szentivani'' Selman, 1963<ref>{{cite journal|last=Selman|first=B. J.|year=1963|title=A new species of ''Deretrichia'' (Coleoptera: Eumolpidae) found on ''Theobromia cacao'' in New Britain and the Feni Islands|journal=Annals and Magazine of Natural History|series=13|volume=6|issue=67|pages=445–447|doi=10.1080/00222936308651380}}</ref> – New Britain, Feni Islands * ''Deretrichia tibialis'' (Baly, 1867)<ref name="Baly1867"/> – Misool * ''Deretrichia tibialis'' Medvedev, 2013<ref name="Medvedev2013">{{cite journal|first=L. N.|last=Medvedev|year=2013|title=New species of Eumolpinae (Chrysomelidae) from islands of SE Asia|url=http://www.bjc.sggw.pl/arts/2013v13n1/07.pdf|journal=Baltic Journal of Coleopterology|volume=13|issue=1|pages=61–66|access-date=2018-12-22|archive-date=2020-07-13|archive-url=https://web.archive.org/web/20200713033857/http://www.bjc.sggw.pl/arts/2013v13n1/07.pdf|url-status=dead}}</ref> (homonym?) – Western New Guinea (Kaimana) * ''Deretrichia timorensis'' (Jacoby, 1894)<ref name="Jacoby1894"/> – Timor * ''Deretrichia variabilis'' (Baly, 1867)<ref name="Baly1867"/> – Western New Guinea (Manokwari) * ''Deretrichia viridis'' Selman, 1963<ref name="Selman1963"/> – Papua New Guinea (Mafulu) * ''Deretrichia wallacei'' Selman, 1963<ref name="Selman1963"/> – Misool {{div col end}}

==References== {{Reflist}}

==External links== * [https://biodiversity.org.au/afd/taxa/Deretrichia Genus ''Deretrichia'' Weise, 1913] at Australian Faunal Directory

Category:Eumolpinae Category:Chrysomelidae genera Category:Beetles of Asia Category:Beetles of Australia Category:Taxa named by Julius Weise Category:Long stubs with short prose {{Eumolpinae-stub}}

Deretrichia

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