Europiella carvalhoi Schuh

SCHUH, RANDALL T., 2004, Revision of Europiella Reuter in North America, with the Description of a New Genus (Heteroptera: Miridae: Phylinae), American Museum Novitates 3463, pp. 1-59 : 20

Europiella carvalhoi Schuh

Figures 1 , 3

Europiella carvalhoi Schuh (in Schuh et al.), 1995: 387 (n. sp., descr.).

DIAGNOSIS: Recognized by the pale, nearly white coloration of the dorsum in most specimens, the elongate­oval body shape (fig. 1), antennal segment 1 black, segment 2 black on at least proximal one­half but sometimes of lighter coloration distally, and the detailed structure of the vesica spines, the anterior spine short and sickle­shaped, the posterior spine relatively short and weakly curving (fig. 3), a condition shared with E. angulata , E. pilosula , and E. unipuncta . Most similar in body form, coloration, and genitalic structure to E. unipuncta , but differing from that species by the smaller pygophore, smaller vesica, and differences in the details of the vesical structure. Separated from E. pilosula by the entirely pale antennae in most specimens of that species and from E. angulata by that species’ larger size and generally darker coloration.

REDESCRIPTION: Male: Relatively small, elongate­ovoid species, total length 2.64– 3.00, width pronotum 0.85–0.98. COLOR­ ATION (fig. 1): Dorsum, including membrane pale, white to tan, tinged with green; neck castaneous; thoracic pleura and venter and pregenital abdominal segments weakly infuscate, pygophore somewhat darker; antennal segment 1 black, segment 2 black proximally, progressively lighter distally in most specimens, segments 3 and 4 weakly infuscate; femora pale to weakly infuscate with some dark spots, tibiae pale, narrowly black at femoral articulation, tibial spines black with black bases. SURFACE AND VESTITURE: Surface and vestiture as in generic description. STRUCTURE: Body elongate ovoid. GENITALIA (fig. 3): Pygophore moderately large relative to total size of abdomen; apical vesical spines short, of nearly equal length, anterior spine sickle­shaped.

Female: Coloration as in male; body form more strongly ovoid. Total length 2.51–2.86, width pronotum 0.89–0.98.

HOSTS: Collected almost exclusively on Artemisia tridentata . Also known from a single record on Chrysothamnus nauseosus .

DISTRIBUTION: Most frequently collected in the northern Great Basin and adjoining areas, ranging from Washington to Wyoming in the North, south into Nevada, Utah , and Colorado.

DISCUSSION: The apical spines of the vesica as illustrated by Schuh et al. (1995) were drawn in error. The correct form is shown in figure 3.

SPECIMENS EXAMINED: Holotype: 3, USA: WY­ OMING: Big Horn Co.: 27 mi W Burgess Jct on Rt 14, 7700 ft., Aug 12, 1986, Schuh Schwartz and Stonedahl; Artemisia tridentata Nutt (Asteraceae) ; deposited in the American Museum of Natural History. Additional specimens: USA: Colorado: Saguache Co.: 23 mi E of Gunnison on Rt 50, 8100 ft, July 17, 1986, R. T. Schuh, Artemisia tridentata (Asteraceae) , 103, 4♀ (AMNH). Idaho: Ada Co. : near Kuna, June 21, 1982, T. J. Henry, Artemisia sp. (Asteraceae) , 33, 8♀ (USNM). Nevada: Elko Co.: 30 mi W of Elko on Rt 80, June 18, 1982, T. J. Henry, Artemisia sp. (Asteraceae) , 43, 5♀ (USNM). Lander Co.: 1.5 mi S of Rt 50 on Rt 376, June 28, 1983, R. T. Schuh and M. D. Schwartz, Artemisia tridentata (Asteraceae) , 13, 1♀ (AMNH). Smith Creek Valley, 9.5 mi S of Rt 2, T15N R39E, June 30, 1983, Schuh, Schwartz, 23 (AMNH). Nye Co.: 3 mi SE of Manhattan Toiyabe National Forest, July 13, 1980, R. T. Schuh and G. M. Stonedahl, 13 (AMNH). Washoe Co.: 7 mi W of Vya toward Cedarville, 1800 m, July 2, 1979, R. T. Schuh and B. M. Massie, Artemisia tridentata (Asteraceae) , paratypes: 43, 4♀ (AMNH). Oregon: Crook Co.: 23 mi E of Prineville, June 28, 1988, G. M, Stonedahl, 973 (AMNH, USNM). Jackson Co.: 1 mi below Mt. Ashland summit, 6500 ft, September 24, 1968, J. D. Lattin, paratypes: 63, 7♀ (OSU). Ashland, 6500 ft, September 24, 1968, P. Oman and J.D. Lattin, paratypes: 83, 8♀ (OSU). Umatilla Co.: 2 mi W of Tollgate, 4600 ft, August 4, 1986, Schuh, Schwartz, and Stonedahl, Artemisia tridentata (Asteraceae) , paratypes: 223, 50♀ (AMNH, USNM). Wheeler Co.: 2 mi W of Mitchell on Rt 26, June 22, 1979, M. D. Schwartz, G. M. Stonedahl, R. T. Schuh, Artemisia tridentata (Asteraceae) , paratypes: 153, 20♀ (AMNH). Mitchell, June 22, 1979, R. T. Schuh, Artemisia tridentata (Asteraceae) , paratypes: 13 (AMNH). Utah: Cache Co.: 0.4 mi off Rt 189 along Franklin Basin Road, 6750 ft, July 17, 2001, T. J. Henry and A. G. Wheeler, Jr., Artemisia tridentata (Asteraceae) , 33 (USNM). Rt 189 (Logan Canyon Road) at milepost 389, 5775 ft, July 17, 2001, T. J. Henry and A. G. Wheeler, Jr., Artemisia tridentata (Asteraceae) , 33, 4♀ (USNM). Rich Co.: Logan Canyon, Cache National Forest, 6200 ft, August 9, 1972, L. A. Kelton, 13 (CNC). Washington: Benton Co.: Hanford Reservation A.E.C., Rattlesnake Ridge, June 28, 1978 – July 12, 1967, W. W. Cone, Artemisia tridentata (Asteraceae) , 13, 2♀ (WSU). Douglas Co.: 7 mi S of Rock Island, Columbia River Orchards, May 28, 1987, R. J. Rathman, Chrysothamnus nauseosus (Asteraceae) , 13 (WSU). Wyoming: Big Horn Co.: 27 mi W of Burgess Jct on Rt 14, 7700 ft, August 12, 1986, Schuh, Schwartz, and Stonedahl, Artemisia tridentata (Asteraceae) , paratypes: 33, 3♀ (AMNH).

Figures

Fig. 1. Habitus views of Europiella spp.: angulata–decolor. See appendix 1 for localities.

Fig. 3. Male genitalia of Europiella spp.: angulata–consors.