Europiella stigmosa (Uhler)

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 : 45-47

Europiella stigmosa (Uhler)

Figures 2 , 5 , 11

Agalliastes stigmosus Uhler, 1893: 379 (n. sp., descr.).

DIAGNOSIS: Recognized by the relatively small size, elongate oval body shape, mottled coloration of the dorsum (fig. 2), generally pale femora with a relatively large number of dark spots, and the vesica with a long, flattened, decurved, anterior apical spine and shorter, flattened posterior spine (fig. 5), a condition shared with E. umbrina and E. consors . Distinguished from E. umbrina by its lighter coloration and from E. consors by its much smaller size and more ovate body form in the males; distinguished from both species by the pale antennae in E. stigmosa . Sexual dimorphism in E. stigmosa (and E. umbrina ) is weak, the body form in the females being nearly the same as that in the males.

REDESCRIPTION: Male: Small, relatively broad­bodied species, total length 2.78–3.06, width pronotum 0.96–1.12. COLORATION (fig. 2): General coloration somewhat mottled, dorsum generally pale with brown­toblack blotches; antennal segment 1 black, sometimes black only basally, segment 2 at most darkened at extreme base, segments 3 and 4 varying from pale to very dark; labium pale basally, segments 3 and 4 black; much of venter dark; coxae partially pale; trochanters pale; femora pale or weakly darkened and ornamented with numerous dark spots or blotches; tibiae with pale background coloration with black spines with black bases. SURFACE AND VESTITURE (fig. 11D): Surface and vestiture as in generic diagnosis. STRUCTURE (fig. 11): Elongate ovoid, corial margin moderately convex. GENITALIA (fig. 5): Pygophore moderately large relative to total size of abdomen; vesica similar in structure of apical spines to E. umbrina and E. consors , anterior spine long and decurved, posterior spine shorter and nearly erect.

Female: Coloration often paler than in males, with dorsum sometimes almost entire pale. Body form very similar to male. Total length 2.65–2.91, width pronotum 1.02–1.09.

HOSTS: Known to breed on Artemisia californica , A. ludoviciana , and A. tridentata (Asteraceae) . The record from Lupinus is certainly a sitting record.

DISTRIBUTION: Widely distributed in western North America , except for wetter coastal areas, ranging from British Columbia south to northern Baja California and east to Nebraska and Oklahoma.

DISCUSSION: Schuh et al. (1995) documented the identity of E. stigmosa .

SPECIMENS EXAMINED: MEXICO: Baja California Norte: 3.5 km W of Parque Sierra San Pedro Martir, 1875 m, April 25, 1985, R. T. Schuh and B. M. Massie, Artemisia tridentata (Asteraceae) , 13 (AMNH). Tecate, 3.4 mi S of El Condor, May 15, 1982, M. D. Schwartz, Artemisia tridentata (Asteraceae) , 53 (AMNH). USA: Arizona: Coconino Co.: Grand Canyon, south Rim, July 29, 1980, R. L. Usinger, Artemisia sp. (Asteraceae) , 13 (UCB). Near Grand Canyon, 8000 ft, June 16, 1935, 43 (USNM). Rt 64 just SE of Grand Canyon Natl. Park in Kaibab National Forest, June 26, 1980, K. and R. Schmidt, Artemisia sp. (Asteraceae) , 13 (AMNH). Pinal Co.: Casa Grande Natl. Monument, March 22, 1932, 13 (USNM). California: Alpine Co.: Ebbetts Pass, Pacific Crest N.S. Tr., Toiyabe N.F., Rt 4, 8000 ft, July 5, 1994, M. D. Schwartz, Artemisia sp. (Asteraceae) , 13 (CNC). Ebbetts Pass, Pacific Crest N.S. Tr., Toiyabe N.F., Rt 4, May 7, 1994, M. D. Schwartz, 13 (AMNH). Inyo Co. : Big Pine, June 17, 1929, E. P. Van Duzee, 13 (CAS). Lone Pine, May 21, 1937, 13 (UCB). Silver Canyon, White Mts. , May 10, 1926, 13 (CAS). Lassen Co.: Doyle State Wildlife Preserve, June 20, 1974, Oman, 33 (OSU). Los Angeles Co.: Claremont, C. F. Baker, 13 (HELSINKI). Modoc Co.: 2.5 mi S of Rt 139 towards Lookout, 1440 m, July 6, 1979, R. T. and Joe Schuh, Lupinus sp. (Fabaceae) , 33 (AMNH). 24.7 mi NW of Canby, 1375 m, July 1, 1979, R. T. Schuh and B. M. Massie, 53 (AMNH). Ca. 4 mi E of Cedarville, 1440 m, July 2, 1979, R. T. Schuh and B. M. Massie, 13 (AMNH). Mono Co.: 10 mi N of Bridgeport, Schwauger Creek, 8500 ft, August 24, 1972, J. D. lattin, 13 (OSU). Mammoth Camp, W. D. Pierce, 33 (LACM). Mono Lake, N edge at Rt 395, 2188 m, July 11, 1980, R. T. Schuh and G. M. Stonedahl, Artemisia tridentata (Asteraceae) , 33 (AMNH). Mono Lake, Tioga Lodge, June 22, 1929, R. L. Usinger, 13 (USNM). Tioga Lodge, Mono Lake, June 22, 1929, R. L. Usinger, 123 (CAS, CNC). Tom’s Place, September 6, 1966, 13 (UCB). Orange Co.: Anaheim, March 2, 1971, E. R. Paddock, 33 (CAFA). Cleveland National Forest, El Cariso Campground on Hwy 74, 750 m, May 12, 1978, J. D. Pinto, Artemisia sp. (Asteraceae) , 173 (AMNH). Riverside Co.: 4 mi E of Elsinore, Red Rock Canyon, April 17, 1965, D. Veirs, 23 (UCB). Herkey Creek, San Jacinto Mts., June 4, 1940, 23 (CAS, UCB). Hwy 74, Cleveland National Forest E of El Cariso Station, 2500 ft, May 12, 1978, J.D. Pinto and R. T. Schuh, Artemisia sp. (Asteraceae) , 203 (AMNH, UCR). Quail Valley, March 2, 1974 – April 18, 1975, C. Linn, 13 (UCR). Riverside, March 11, 1947, M. M. Johnson, 13 (UCR). Riverside, March 29, 1971, E. R. Paddock, Artemisia californica (Asteraceae) , 193 (CAFA). San Diego Co.: 8.2 mi E of Dulzura on Rt 94 at mp 36.50, May 15, 1982, M. D. Schwartz, Artemisia californica (Asteraceae) , 23 (AMNH). beyond Jacumba, June 11, 1915, H. Morrison, Artemisia sp. (Asteraceae) , 13 (USNM). Ramona, April 18, 1938, E. P. Van Duzee, 13 (CAS). San Diego, April 8, 1974, C. Linn, 13 (UCR). Santa Barbara Co. : Upper Oso Campground off Rt 154, 310 m, May 7, 1985, R. T. Schuh and B. M. Massie, Artemisia californica (Asteraceae) , 113 (AMNH). Siskiyou Co.: Bray, June 30, 1935, R. H. Beamer, 73 (KU). Lava Beds Natl. Mon. Near Headquarters, 1560 m, June 26, 1979, R. T. and Joe Schuh, 23 (AMNH). Tulare Co.: 21 mi W of Rt 395 toward Kennedy Meadows, 1875 m, July 1, 1980, R. T. Schuh, Artemisia tridentata (Asteraceae) , 23 (AMNH). Colorado: Costilla Co.: Fort Garland, August 10, 1925, H. H. Knight, 13 (USNM). Jackson Co.: Walden, August 20, 1931, R. Beamer, 13 (KU). Montezuma Co. : Dolores, August 15, 1925, C. J. Drake, 13 (USNM). Idaho: Ada Co. : near Kuna, June 22, 1982, T. J. Henry, 53, 4♀ (USNM). Boise Co.: 13 mi SW of Idaho City, June 27, 1975, Knowlton, Hanson, 13 (USU). Nebraska: Dodge Co.: Fremont, August 28, 1925, H. H. Knight, 13 (USNM). Nevada: Carson City Co.: Carson City, 6000 ft, July 11, 1965, H. H. Knight, 13 (USNM). Carson City, June 25, 1929 – July 10, 1934, R. L. Usinger, E. P. Van Duzee, 23 (CAS). Elko Co.: 30 mi SE of I­80 on Hwy 229, 6260 ft, July 19, 1980, G. M. Stonedahl, Artemisia sp. (Asteraceae) , 13 (AMNH). 30 mi W of Elko on Rt 80, June 18, 1982, T. J. Henry, Artemisia sp. (Asteraceae) , 83, 7♀ (USNM). Esmeralda Co. : 13 mi W of Lida on Rt 3, 1938 m, July 12, 1980, R. T. Schuh, G. M. Stonedahl, Artemisia tridentata (Asteraceae) , 23 (AMNH). Eureka Co.: 12 mi N of Rt 50 on Rt 278, 5800 ft, June 27, 1983, R. T. Schuh and M. D. Schwartz, Artemisia tridentata (Asteraceae) , 93 (AMNH). 25 mi W of Eureka on Rt 50, 6000 ft, June 27, 1983, R. T. Schuh and M. D. Schwartz, Artemisia sp. (Asteraceae) , 23 (AMNH). Lander Co.: 1.5 mi S of Rt 50 on Rt 376, 6000 ft, June 28, 1983, Schuh, Schwartz, Artemisia tridentata (Asteraceae) , 83 (AMNH). Lyon Co.: N. boundry Toiyabe N.F. on Rt 22, July 11, 1980, R. T. Schuh, 13 (AMNH). Mineral Co.: 27 mi SW of Hawthorne on Rt 359 (1 mi NE of Anchorite Summit), 7400 ft, July 2, 1983, R. T. Schuh and M. D. Schwartz, Artemisia tridentata (Asteraceae) , 93 (AMNH). Nye Co.: Atomic Test Site, 2 mi W of Tippapah Hwy on Mine Mt. Road, 4400 ft, June 7, 1983, Schuh, Schwartz, Stonedahl, Artemisia tridentata (Asteraceae) , 13 (AMNH). Mercury, 401 M, June 22, 1965, H. H. Knight and J. Merino, 43 (CNC). Mercury, June 23, 1965, H. H. Knight and J. Merino, 153, 15♀ (USNM). Ormsby Co.: No specific locality, July 1, 1900, Baker, 53 (CAS, HEL­ SINKI). No specific locality, July 1, 1900, C. F. Baker, 13 (USNM). No specific locality, July 1, 1900, C. F. Baker, 43 (AMNH, UCB). Washoe Co.: 7 mi W of Vya toward Cedarville, 1800 m, July 2, 1979, R. T. Schuh and B. M. Massie, Artemisia sp. (Asteraceae) , 163 (AMNH). Reno, June 27, 1927, E. P. Van Duzee, 23 (CAS). Oklahoma: Tillman Co.: No specific locality, March 1, 1941, 23 (USNM). Oregon: Crook Co.: Ochoco National Forest, July 29, 1967, Paul Oman, 13 (OSU). Deschutes Co.: 12 mi SE of Bend, July 19, 1957, G. Kraft, Artemisia tridentata (Asteraceae) , 33 (OSU). 8 mi SE of Brothers, July 9, 1968, Oman, 23 (OSU). Bend, July 2, 1935, R. H. Beamer, 13 (KU). Grant Co. : Seneca, July 24, 1935, Joe Schuh, 43 (AMNH). Klamath Co.: 10 mi SE of Chiloquin, July 4, 1982, G. M. Stonedahl and T. J. Henry, Artemisia tridentata (Asteraceae) , 133 (AMNH). 13 mi W of Keno on Rt 66, 4600 ft, June 27, 1979, M. D. Schwartz, 13 (AMNH). 5–15 mi SE of Chiloquin, July 4, 1982, T. J. Henry and G. M. Stonedahl, Artemisia sp. (Asteraceae) , 43, 8♀ (USNM). 6 mi SE of Keno, 4100 ft, June 27, 1979, M. D. Schwartz, Artemisia tridentata (Asteraceae) , 73 (AMNH). 8 mi SE of Dairy, Lost River, August 4, 1966, Gagne, Haddock, 13 (UCB). Between Worden and Keno, 1280 m, June 27, 1979, R. T. and Joe Schuh, Artemisia tridentata (Asteraceae) , 33 (AMNH). Klamath Falls, July 5, 1953, J. Schuh, 13 (OSU). Lower Klamath Lake Hill, July 19, 1953, Joe Schuh, 23 (OSU). Lake Co.: 11 mi NW of Silver Lake on Hwy 31, 4500 ft, June 25, 1979, G. Stonedahl, Artemisia tridentata (Asteraceae) , 13 (AMNH). Utah: Cache Co.: Logan Canyon, August 28, 1939, Harmston, 13 (USU). Logan Canyon, July 30, 1940, D. G. Hall, 23 (USNM). Iron Co. : 7 mi S of Beryl Junction, June 15, 1967, Artemisia tridentata (Asteraceae) , 13 (USNM). Kane Co.: Kanab Creek, May 23, 1956, G. F. Knowlton, 63 (USNM). Millard Co.: Scipio, June 19, 1965, H. H. Knight, 203, 20♀ (USNM). Salt Lake City Co.: Salt Lake City, June 16, 1898, 23 (USNM). Salt Lake Co.: Mouth of Little Cottonwood Canyon on Rt 210, 5800 ft, June 28, 1981, M. D. Schwartz, Artemisia ludoviciana (Asteraceae) , 13 (AMNH). San Juan Co.: 19 mi N of Mexican Hat on Rt 261, 6500 ft, June 17, 1983, R. T. Schuh and M. D. Schwartz, Artemisia tridentata (Asteraceae) , 13 (AMNH). 27 mi E of Blanding at mp 101 on Rt 95 near Mule Tower Ruins, 6500 ft, June 12, 1982, M. D. Schwartz, Artemisia ludoviciana (Asteraceae) , 23 (AMNH). 3 mi W of Clay Hills Crossing, 5600 ft, June 18, 1983, R. T. Schuh and M. D. Schwartz, 333 (AMNH). Abajo Mts., 0.2 mi SE Devils Canyon Cmpgd, 6900 ft, June 12, 1982, M. D. Schwartz, Artemisia tridentata (Asteraceae) , 33 (AMNH). Buffdale, June 13, 1935, Knowlton, 13 (USU). White Canyon, Duckett Crossing , May 29, 1985, J. T. and D. A. Polhemus, Artemisia tridentata (Asteraceae) , 63 (JTP). Sanpete Co.: Ephraim Canyon, June 13, 1904, E. Anthon, 13 (USU). Sevier Co.: 11 mi W of Sevier on Rt 4, 2000 m, July 15, 1980, R. T. Schuh and G. M. Stonedahl, Artemisia tridentata (Asteraceae) , 13 (AMNH). Salt Gulch, 12 mi N Hwy 24 on Hwy 72, 8060 ft, July 17, 1980, G. M. Stonedahl, Artemisia sp. (Asteraceae) , 23 (AMNH). Uintah Co.: 22 mi N of Vernal, August 25, 1966, C. O’Brian, 23 (UCB). Bonanza, White River Shale Project , 5000 ft, June 1, 1981, M. D. Schwartz, Artemisia tridentata (Asteraceae) , 13 (AMNH). Utah Co.: American Fork, June 22, 1891, P. R. Uhler Collection, 1♀ (USNM). American Fork, June 28, 1965, H. H. Knight, 103, 10♀ (USNM). Wasatch Co.: Strawberry, September 10, 1933, E. Anthon, 13 (USU). Washington Co.: Santa Clara , April 26, 1935, Knowlton, Smith, 23 (USU). Wyoming: Lincoln Co.: Kemmerer, July 23, 1981, G. Bohart, 13 (BYU).

Figures

Fig. 2. Habitus views of Europiella spp.: decolor–unipuncta. Habitus of Knightopiella albipubescens. See appendix 1 for localities.

Fig. 5. Male genitalia of Europiella spp.: signicornis–unipuncta.

Fig. 11. Scanning electron micrographs of Europiella stigmosa (3) A. Head and thorax, lateral view. B. Lateral view of thorax and abdomen. C. Mesothoracic spiracle and metepisternal scent­efferent system, lateral view. D. Setae on hemelytra, detail of microstructure. E. Pretarsus, frontal view.