Abstract
A new species of the rhyparochromine tribe Lethaeini, Xestocoris tibialis, from Arizona, is described and figured. The lectotype of X. collinus is redescribed. A lectotype of X. nitens is designated and redescribed. New distributional records for X. nitens are provided. A key to the species of Xestocoris and a discussion of phylogenetic relationships with other lethaeine genera are included.References
Ashlock, P.D. (1964) Two new tribes of Rhyparochrominae: a re-evaluation of the tribe Lethaeini (Hemiptera-Heteroptera: Lygaeidae). Annals of the Entomological Society of America, 57, 414–442.
Ashlock, P.D. & Slater, A. (1988) Lygaeidae, pages 167–250 IN: Henry, T.J. and R. C. Froeschner, eds. (1988). Catalog of the Heteroptera, or True Bugs, of Canada and the continental United States. E.J. Brill, Leiden, New York, etc. xix + 958 pp.
Bergroth, E. (1916) Neue Myodochidae (Hem. Het.). Wiener Entomologische Zeitung, 35, 215–221.
Blatchley W.S. (1926) Heteroptera or true bugs of eastern North America, with special reference to the faunas of Indiana and Florida. Indianapolis: Nature Publishing Co. 1116 pp.
Distant, W.L. (1893) Insecta. Rhynchota. Hemiptera-Heteroptera. Biologia Centrali-Americanum Supplement, pp. 378–462, London.
Khan, P. & Woodward, T.E. (1979) The spermatheca and associated structures of Lethaeini (Hemiptera: Lygaeidae: Rhyparochrominae). Journal of the Australian Entomological Society, 18, 39–44.
O’Donnell, J.E. (1986) Systematics of Western Hemisphere Lethaeini (Heteroptera: Lygaeidae: Rhyparochrominae). Doctoral Dissertation, University of Connecticut, Storrs, CT.
O’Donnell, J.E. (1991) A survey of male genitalia in lethaeine genera (Heteroptera: Lygaeidae: Rhyparochrominae). Journal of the NewYork Entomological Society, 99, 441–470.
O’Donnell, J.E. (2001) A new genus and five new species of Neotropical Lethaeini (Heteroptera: Lygaeoidea: Rhyparochromidae). Florida Entomologist, 84, 133–146.
Scudder, G.G.E. (1957) The higher classification of the Rhyparochrominae (Hem., Lygaeidae). Entomologists’ Monthly Magazine, 94, 145–150.
Scudder, G.G.E. (1967) Rhyparochromine types in the British Museum (Natural History) (Hemiptera: Lygaeidae). Bulletin of the British Museum (Natural History) Entomology, 20, 253–285.
Slater, J.A. (1964) A Catalogue of the Lygaeidae of the World. 2 volumes, The University of Connecticut, Storrs, Connecticut. xviii + 1688 pages.
Slater, J.A. (1975) On the biology and zoogeography of Australian Lygaeidae (Hemiptera: Heteroptera) with special reference to the southwest fauna. Journal of the Australian Entomological Society, 14, 47–64.
Sweet, M.H. (1960) A contribution to the feeding habits of the Lygaeidae (Hemiptera: Lygaeidae). Annals of the Entomological Society of America, 53, 317–321.
Sweet, M.H. & Slater, J.A. (1961) A generic key to the nymphs of North American Lygaeidae (Hemiptera: Heteroptera). Annals of the Entomological Society of America, 54, 333–340.
Van Duzee, E.P. (1906) New North American Heteroptera. Entomological News, 17, 384–391.
Woodward, T.E. (1962) A new genus of Rhyparochrominae (Hemiptera: Lygaeidae) from Queensland. Journal of the Entomological Society of Queensland, 1, 46–49.
Woodward, T.E. (1979) The genus Austroxestus Woodward (Hemiptera: Lygaeidae: Rhyparochrominae). Australian Journal of Zoology, 27, 813–824.