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Issue: Vol. 5301 No. 1: 8 Jun. 2023
Type: Article
Published: 2023-06-08
DOI: 10.11646/zootaxa.5301.1.2
Page range: 51-74
Abstract views: 395
PDF downloaded: 51

The pest sap beetle Carpophilus (Myothorax) truncatus Murray, 1864 (Coleoptera: Nitidulidae)—a new synonymy and a related new species of Carpophilus

Agriculture Victoria Research; AgriBio; Centre for AgriBioscience; 5 Ring Road; Bundoora; VIC 3083; Australia
Agriculture Victoria Research; AgriBio; Centre for AgriBioscience; 5 Ring Road; Bundoora; VIC 3083; Australia
Agriculture Victoria Research; AgriBio; Centre for AgriBioscience; 5 Ring Road; Bundoora; VIC 3083; Australia
Agriculture Victoria Research; AgriBio; Centre for AgriBioscience; 5 Ring Road; Bundoora; VIC 3083; Australia; School of Applied Systems Biology; La Trobe University; Bundoora 3083; Victoria; Australia
Coleoptera Carpophilus jarijari Carpophilus dimidiatus Carpophilus pilosellus Carpophilus imitatus sp. nov. dichotomous key almond pest DNA barcoding adult and larval morphology re-description taxonomy

Abstract

Carpophilus truncatus Murray 1864, is a species of sap beetle which has been recorded from many countries worldwide, and has become recognised as an important pest of nuts. In this study, we present a re-description of C. truncatus including diagnostic photographic images of the adults and larvae, and demonstrate that Carpophilus jarijari Powell & Hamilton, 2019 is a junior subjective synonym of C. truncatus. Information about the species’ distribution in Australia is updated. DNA barcode sequence data for C. truncatus is reviewed and augmented to enable differentiation from other morphologically similar Carpophilus species that are associated with nuts as hosts, including the cosmopolitan Carpophilus dimidiatus (Fabricius, 1792), for which C. truncatus has sometimes been misidentified. This analysis revealed that existing reference DNA sequences of “C. dimidiatus” consist of three highly genetically divergent lineages, representing three species: the cosmopolitan C. dimidiatus, the widespread C. truncatus, and a newly described species, Carpophilus imitatus sp. nov., known from south-eastern Asia and Australia.

 

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