First New World Record ofParadelphacodes Paludosus(Flor 1861) (Hemiptera: Fulgoroidea : Delphacidae) in Alaska

Abstract

The delphacid genus Paradelphacodes Wagner, 1963, currently consists of 5 species, viz. P. gvosdevi (Mitjaev, 1980) (=P. insolitus Dmitriev, 2000), P. litoralis (Reuter, 1880), P. orientalis Anufriev, 1972, P. paludosus (Flor, 1861), and P. tengaica Vilbaste, 1965 (Anufriev and Emeljanov 1988, Dmitriev 2000, Dmitriev and McKamey 2013). Members of the genus are generally found in the northern Palearctic regions, although P. litoralis has been reported from Canada (British Columbia, Northwest Territories, Newfoundland, Yukon; Wilson 1992, 1997, Maw et al., 2000). Here we report a single male specimen of P. paludosus (Fig. 1) from Alaska (Kanuti National Wildlife Refuge), el. 151m., 66.37075°N, 152. 02144°W ±102m, on floating vegetation, lake side, sweep, 21 June 2010, D. S. Sikes; UAM:Ento:164292), a new species record for North America. This brings the total number of delphacid species known north of Mexico to 314 (also including Megamelus scutellaris Berg, 1883, introduced for control of water hyacinth, Eichornia crassipes (Mart.) Solms; Pontederiaceae). Specimen data are available online from both Arctos (see below) and the Tri-Trophic Thematic Collection Network (http://tcn.amnh.org/). Delphacids from Alaska consist of 17 reported species (Wilson 1988, Bartlett et al., 2014). Of these species, 12 are also found in the Palearctic and 5 are restricted to the New World. Paradelphacodes paludosus is widely distributed in northern Europe, Russia, Japan, Korea, China, Mongolia, and Afghanistan (Anufriev and Emeljanov 1988). P. paludosus is reported from ‘bogs, spring mires and fens’ in Central Europe, probably on Carex rostrata Stokes and C. panicea L. (Cyperaceae; Nickel 2003: 57), and from the grasses (Poaceae): Agropyron sp., (wheatgrass), Dactylis glomerata L. (orchardgrass), Phalaris canariensis L. (annual canarygrass), and Sporobolus sp. (dropseed) in China (Ding 2006). The Alaskan specimen was collected from a floating mat of vegetation, mostly Cyperaceae and mosses with prominent Eriophorum angustifolium Honck (cottonsedge, Cyperaceae). The specimen data, figures, and photos of habitat are available online at http://arctos.database.museum/guid/UAM:Ento:164292. It is likely that P. paludosus had been overlooked in earlier work since delphacids have not been exhaustively collected in Alaska, and additional species are likely to be detected. 1 Received on April 15, 2014. Accepted on July 21, 2014. 2 Department of Entomology and Wildlife Ecology, University of Delaware, 250 Townsend Hall, 531 S. College Ave., Newark, DE 19716-2130. E-mail bartlett@udel.edu