Invertebrate Systematics Invertebrate Systematics Society
Systematics, phylogeny and biogeography
RESEARCH ARTICLE

Systematics and host plant associations of a new genus of Acacia-inhabiting plant bugs from arid Australia (Insecta : Hemiptera : Heteroptera : Miridae : Orthotylinae)

Gerasimos Cassis A B and Celia Symonds A

A Evolution & Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, NSW 2052, Australia.

B Corresponding author. Email: gcassis@unsw.edu.au

Invertebrate Systematics 28(5) 522-554 http://dx.doi.org/10.1071/IS13063
Submitted: 19 December 2013  Accepted: 20 May 2014   Published: 13 November 2014

Abstract

Acaciacapsus, gen. nov. is described as a new plant bug genus, with eight new included species: A. amadeus, sp. nov.; A. appha, sp. nov.; A. aureolus, sp. nov.; A. bournda, sp. nov.; A. emeraldensis, sp. nov.; A. lolworthensis, sp. nov.; A. millstreamensis, sp. nov.; and A. woodwardi, sp. nov. Differential diagnoses and descriptions are given for all species, including salient characters, and the male and female genitalia. An identification key is provided to species. Male genitalia are illustrated, and a habitus photograph is provided for each species. Female genitalia are illustrated for two species. The genus is putatively an Acacia specialist, and has cryptozoic yellowish colouration. The species are primarily found in arid and semi-arid regions of non-monsoonal regions of Australia. The collection events are digitised and their distributions mapped. A phylogeny of species is given. Modifications are given to male genitalic homologies and are discussed in reference to other Australian orthotylines.

Additional keywords: host relationships, phylogeny, species delineation, taxonomy.


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