Plagiognathus albatus (Van Duzee)

SCHUH, RANDALL T., 2001, Revision Of New World Plagiognathus Fieber, With Comments On The Palearctic Fauna And The Description Of A New Genus (Heteroptera: Miridae: Phylinae), Bulletin of the American Museum of Natural History 2001 (266), pp. 1-267 : 29-30

NEARCTIC SPECIES Plagiognathus albatus (Van Duzee) Figures 5 , 15 , 20

Psallus albatus Van Duzee, 1915: 116 (n. sp.).

Plagiognathus albatus Van Duzee, 1917a: 410 (n. comb.).

Plagiognathus albatus vittiscutis Knight, 1923: 445 (n. var.).

Plagiognathus albatus similis Knight, 1923: 445 (n. var.) NEW SYNONYMY.

Plagiognathus caryae Knight, 1923: 448 (n. sp.) NEW SYNONYMY.

Plagiognathus repletus Knight, 1923: 449 (n. sp.) NEW SYNONYMY.

Plagiognathus repletus apicatus Knight, 1923: 449 (n. var.).

Plagiognathus inopinus Knight, 1926: 11 (n. sp.; syn. by Henry, 1982: 338).

Plagiognathus similis furvus Knight, 1927: 12 (n. var.).

DIAGNOSIS: Recognized, in common with maculipennis and tinctus , by the mostly pale antennal segment 2, generally pale costal vein on hemelytra, and cuneus and basal portion of corium pale or mostly pale in contrast to the frequently much darker remainder of hemelytra. Distinguished from maculipennis by that species being relatively small, having antennal segment 1 pale, and having the tibiae pale at the articulation with femora, whereas albatus larger, having antennal segment 1 dark, and having the tibiae dark at articulation with the femora; also separated by subtle but constant differences in male genitalia (compare figs. 20 and 27). Distinguished from tinctus externally by the scutellum being unicolorous dark in that species (fig. 13), whereas the scutellum often pale laterally and dark mesially in albatus (fig. 5: albatus 1), but sometimes entirely dark (fig. 5: albatus 3, 4) or entirely pale (fig. 5, albatus 2), and by the form of the male genitalia, especially the apical vesical spines being much longer and more slender in tinctus (fig. 33) than in albatus (fig. 20).

REDESCRIPTION: Male: Medium­sized, elongate­ovoid; total length 3.46–4.03, length apex clypeus–cuneal fracture 2.46– 2.75, width across pronotum 1.04 –1.26. COLORATION (fig. 5): Background coloration of dorsum varying from almost totally pale, whitish, through largely castaneous, to nearly black with pale markings only on cuneus; membrane partially to entirely fumose, veins weakly fumose to pale; clypeus and most of face at and below level of antennal insertion deeply castaneous, highly polished; antennal segment 1 castaneous except for pale apical annulus, segment 2 castaneous at extreme base with remainder of segment pale (fig. 15), segments 3 and 4 pale; labium mostly pale except at base and apex; venter entirely castaneous; legs pale, yellowish, except for darker basal portion of hind coxa and some dark spots on hind femora; dorsal tibial spines with small dark spots at bases; tibiae dark at articulation with femora. SUR­ FACE AND VESTITURE: Dorsum weakly granular, smooth, weakly shining; face at and below level of antennal insertion highly polished and shining. Vestiture of dorsum composed of recumbent, pale to golden shining, simple setae. STRUCTURE: Hemelytra weakly convex laterally; frons weakly convex, slightly projecting beyond anterior margin of eyes, clypeus barely visible from above; anteocular distance equal to diameter of antennal segment 1; head projecting below eye by a distance equal to diameter of antennal segment 1; labium reaching between apices of middle and hind coxae. GENITALIA (fig. 20): Body of vesica relatively short, stout, more or less J­shaped, base of vesica falling somewhat below level of secondary gonopore, posterior apical spine straight, broad, forming an oblique angle relative to body of vesica, anterior spine slightly longer than posterior, angled near apex, nearly perpendicular to body of vesica; flange on vesica broad and reaching to about midpoint of secondary gonopore.

Female: Very similar to male in coloration but body more strongly ovoid in outline. To­ tal length 3.34–4.13, length apex clypeus– cuneal fracture 2.41–2.88, width across pronotum 0.99–1.21.

HOSTS: Most frequently collected on Betula spp. (Betulaceae) , Juglans spp. (Juglandaceae) , Platanus spp. (Platanaceae) , and Ulmus (Ulmaceae) . Also apparently breeds on Rhus sp. (Anacardiaceae) and Nyssa sp. (Nyssaceae) . Records from other plant families, such as the Asteraceae and Pinaceae , likely are mere sitting records.

DISTRIBUTION: Eastern North America, from Quebec south to the Gulf Coast, west to central Texas and the foothills of the Colorado Rockies.

DISCUSSION: Van Duzee (1915) described Psallus albatus from sycamore ( Platanus occidentalis ). He later (Van Duzee, 1917a) transferred it to Plagiognathus . Knight (1923) described Plagiognathus vittiscutis as a variety of albatus (Van Duzee) , noting that he had taken it only on Juglans cinerea (butternut). Below, on the same page, Knight described the variety albatus similis , recording it from Michigan (on Alnus incana ) and Connecticut; he later (Knight, 1927) accorded similis species status. Knight (1923: 448) described Plagiognathus caryae from Carya spp. in upstate New York and Mississippi. He finally (p. 449) described Plagiognathus repletus from a single female specimen from upstate New York, noting its similarity with vittiscutus, but indicating that the labium was shorter in repletus . Knight (1926) based his description of Plagiognathus inopinus on specimens from Harrisburg, Pennsylvania, collected on sycamore.

Subsequent to their introduction, these names have been applied by Knight (1941) and others largely as if the nominal taxa were host specific. For example, Henry and Smith (1979) and Wheeler (1980) used albatus in reference to sycamore feeders, Henry and Smith (1979) used caryae for Carya feeders, and Wheeler et al. (1983) used similis for Betulaceae feeders. My evaluation suggests that in some cases attribution of species status on the basis of host plants alone disregards variation seen within populations occurring on a given plant species.

After having examined a large amount of material, including the types (paratypes of albatus ), from localities broadly distributed across eastern North America, and with a significant amount of associated host information, I have concluded that there is no justification for using more than one name, which must be albatus on the basis of priority. The taxon shows substantial color variation, and that variation can be as great among specimens taken from a single host as across hosts. Specimens known to have bred on sycamore have been assigned to the albatus type if largely pale and to the inopinus type if mostly black. The vittiscutis type is heavily tinged with orange, usually with extensive, intense, and well­defined castaneous areas; the scutellum usually has a median longitudinal dark stripe and is pale laterally. Although a limited number of specimens might cause one to conclude that these color types were discrete, a broader sample makes it clear that variation in pigmentation of the scutellum and hemelytra is extreme for populations breeding on most known hosts, and that that variation is not discrete.

The labium shows some variation in length and the vesica shows some structural variability (see fig. 20), but I was not able to discern any consistent pattern in this variation.

SPECIMENS EXAMINED: CANADA.— Manitoba: Boissevain, July 15, 1953 – July 16, 1953, Brooks and Kelton, Ulmus sp. (Ulmaceae) , 113, 11♀ (CNC). Boissevain, July 16, 1953, Brooks and Kelton, 43 (CNC). New Brunswick: Fredericton, June 28, 1976, L. A. Kelton, 1♀ (CNC). Kouchibouguac Natl. Park, July 26, 1977, D. J. Brown, Rhododendron sp. (Ericaceae) , 33, 4♀ (CNC). Nova Scotia: Kentville, July 15, 1966, L. A. Kelton, 13, 1♀ (CNC). Woodville, July 20, 1966, L. A. Kelton, Alnus sp. (Betulaceae) , 13, 3♀ (CNC). Ontario: Aldershot, July 14, 1958, L. A. Kelton, 1♀ (CNC). Burtch, July 11, 1961, L. A. Kelton, 33, 1♀ (CNC). Carp, August 7, 1962, L. A. Kelton, Juglans sp. , ( Juglandaceae ), 2♀ (CNC). Dundas, July 16, 1962, Kelton and Thorpe, Pinus banksiana (Pinaceae) , 2♀ (CNC). Erie View, July 4, 1962, G. Thorpe, Juglans sp. (Juglandaceae) , 1♀ (CNC). Erie View, July 4, 1962, L. A. Kelton, Juglans sp. (Juglandaceae) , 53, 9♀ (CNC). Forrestville, July 4, 1962, G. Thorpe, Juglans sp. (Juglandaceae) , 203, 10♀ (CNC). Hespeler, August 25, 1961, Kelton and Brumpton, 1♀ (CNC). Ipperwash, July 11, 1962, Kelton and Thorpe, 1♀ (CNC). Jordan, July 17, 1961, L. A. Kelton, 33, 4♀ (CNC). Kingsville, June 19, 1962, Kelton and Thorpe, Juglans sp. (Juglandaceae) , 7♀ (CNC). Leamington, June 19, 1962, Kelton and Thorpe, Juglans sp. (Juglandaceae) , 1♀ (CNC). Leamington, June 19, 1962, Kelton and Thorpe, Juglans sp. (Juglandaceae) , 143, 15♀ (CNC). London, June 22, 1952, R. H. N. Smith, Juglans sp. (Juglandaceae) , 23, 4♀ (CNC). Mt. Pleasant, July 10, 1958 – July 14, 1962, L.A. Kelton, 33, 1♀ (CNC). Niagara Falls, June 17, 1978, T. J. Henry, Quercus sp. (Fagaceae) , 23, 5♀ (USNM). Niagara Lake, June 21, 1931, W. L. Putnam, Juglans nigra (Juglandaceae) , 2♀ (CNC). Norwich, July 19, 1962, Kelton and Thorpe, 43, 5♀ (CNC). Ottawa, July 1, 1920, H. G. Crawford, 13 (CNC). Port Rowan, July 12, 1962, H. Blanchard, 13 (CNC). Port Rowan, July 4, 1962, L. A. Kelton, 13, 1♀ (CNC). Port Ryerse, July 15, 1962, Kelton and Brumpton, 13 (CNC). Rockaway, June 21, 1962, Kelton and Thorpe, Juglans nigra (Juglandaceae) , 5♀ (CNC). Selkirk, July 9, 1962, Kelton and Brumpton, 1♀ (CNC). St. Lawrence Is. Natl. Park, Grenadier Is. Center, July 8, 1975, E. Wilson, Solidago sp. (Asteraceae) , 13 (CNC). Stanford, July 12, 1961, L. A. Kelton, 13 (CNC). Stirling, June 26, 1962, G. Thorpe, Juglans sp. (Juglandaceae) , 23 (CNC). Vineland Station, July 13, 1940, W. L. Putnam, Juglans nigra (Juglandaceae) , 33, 3♀ (CNC). Woodslee, July 7, 1962, G. Thorpe, Platanus sp. (Platanaceae) , 1♀ (CNC). Woodstock, July 10, 1962, Kelton and Thorpe, 1♀ (CNC). Prince Edward Island: Charlottetown, July 11, 1966, L. A. Kelton, Ulmus sp. (Ulmaceae) , 13, 2♀ (CNC). Quebec: Chicoutimi, July 24, 1915, G. Beaulieu, 2♀ (CNC). Fabre, July 12, 1963, W. Gagne, 1♀ (CNC). Laniel, July 20, 1962, W. Gagne, Alnus sp. (Betulaceae) , 1♀ (CNC). Missiquoir, S. Bolton, July 5, 1927, G. S. Walley, 13 (CNC). Saskatchewan: Saskatoon, July 20, 1955, A. R. Brooks, Ulmus sp. (Ulmaceae) , 23, 8♀ (CNC). USA.— Alabama: Baldwin Co.: Gulf Shores State Park, May 17, 1985, E. G. Riley and D. A. Rider, 23 (DAR). Arkansas: Pulaski Co.: Little Rock, May 5, 1943, Stahevitch, 13 (LACM). Washington Co.: No specific locality, July 8, 1963, 23, 1♀ (USNM). Colorado: Arapahoe Co.: Highline Canal at Belleview Ave., June 25, 1981, D. A. Polhemus, 13 (JTP). Connecticut: Union, Bigelow State Park, June 17, 1970, F. P. Maroney, 13 (AMNH). Florida: Alachua Co. : No specific locality, April 19, 1955, 13 (AMNH). Hillsborough Co.: Tampa, May 29, 1987, J. E. Eger, 13, 3♀ (TAMU). Georgia: Fulton Co.: Thomasville, June 4, 1926, ex Juglandaceae , 13 (CAS). Thomasville, June 4, 1926, 33, 4♀ (CAS). Illinois: Alexander Co.: Cairo, July 15, 1931, Mohr and Burks, 1♀ (USNM). Bear Lake Co.: Alton, July 27, 1934, DeLong and Ross, 2♀ (AMNH). McHenry Co.: Harvard, June 11, 1933, Mohr and Townsend, 13 (AMNH). Harvard, June 11, 1933, Mohr and Townsend, 2♀ (USNM). Saline Co.: Harrisburg, June 25, 1932, Ross, Dozier, and Park, Betula nigra (Betulaceae) , 1♀ (AMNH). Stephenson Co.: Freeport, July 4, 1917, 1♀ (AMNH). Winnebago Co.: Rockford, July 5, 1932, Dozier and Mohr, Platanus sp. (Platanaceae) , 23 (AMNH). Indiana: Cass Co.: Logansport, June 13, 1976, T. J. Henry, Platanus occidentalis (Platanaceae) , 1♀ (PDA). Howard Co.: NW Howard County, June 23, 1986, D. A. Rider, 1♀ (DAR). Iowa: Boone Co.: Ledges State Park, June 9, 1956, J. C. Schaffner, 13, 1♀ (TAMU). Dickinson Co.: 5 mi W of Milford, June 13, 1963, J. C. Schaffner, 23, 2♀ (TAMU). Iowa Lakeside Lab., June 27, 1963, J. C. Schaffner, 13 (TAMU). Silver Lake, T100N R38W, July 8, 1963, J. C. Schaffner, 1♀ (TAMU). Emmet Co.: Fort Defiance State Park, July 11, 1963, J. C. Schaffner, Juglans nigra (Juglandaceae) , 3♀ (TAMU). Henry Co.: 5 mi SW of Mt. Pleasant, June 30, 1976 – July 1, 1976, J. C. Schaffner, 2♀ (TAMU). Lee Co.: Fort Madison, July 12, 1927, Harris, Johnston, 13 (TAMU). Scott Co.: Pleasant Valley, July 4, 1928, G. S. Walley, 33, 1♀ (CNC). Story Co.: Ames, August 10, 1962, J. C. Schaffner, 13 (TAMU). Ames, July 2, 1928, L. J., 2♀ (TAMU). Ames, June 14, 1927 – June 16, 1930, H. G. Johnston, 113, 14♀ (TAMU). Ames, June 17, 1927 – June 28, 1931, H. M. Harris, 23, 3♀ (TAMU). Ames, June 21, 1964, H. H. Knight, 133, 24♀ (USNM). Ames, June 24, 1951, J. A. Slater, 313 (AMNH). Ames, June 25, 1949, J. A. Slater, ex Platanaceae , 43, 2♀ (AMNH). Ames, June 9, 1925, H. H. Knight, 3♀ (USNM). Woodbury Co.: Sioux City, June 22, 1921, C. N. Ainslie, 13 (USNM). Kansas: Butler Co.: Leon, June 20, 1940, L. C. Kuitert, 1♀ (KU). Douglas Co.: No specific locality, June 14, 1928, P. B. Lawson, 13, 2♀ (KU). No specific locality, June 21, 1924, P. B. Lawson, 1♀ (KU). Leavenworth Co.: No specific locality, June 28, 1924, R. H. Beamer, 13, 1♀ (KU). Wyandotte Co.: Rosedale, June 23, 1924, B. P. Breakey, 1♀ (KU). Kentucky: Rowan Co.: Morehead, June 7, 1985, A. G. Wheeler, Jr., Betula nigra (Betulaceae) , 13, 2♀ (PDA). Louisiana: East Baton Rouge Co.: LSU Campus, May 8, 1986 – June 3, 1985, D. A. Rider, 193, 5♀ (DAR). St. Landry Co.: Port Barre, May 2, 1981, L. D. Newsom, 13, 3♀ (LSU). Maryland: Montgomery Co.: 4 mi S of Ashton, May 19, 1985, G. F. Hevel, 43 (USNM). Plummers Island, July 20, 1926, H. H. Knight, holotype male (USNM). Prince Frederic Co.: Plum Point, June 20, 1914, W. L. McAtee, 13 (USNM). Massachusetts: Suffolk Co.: Boston, Arnold Arboretum, May 24, 1974, T. J. Henry, Nyssa sylvatica (Nyssaceae) , 1♀ (AMNH). Boston, Arnold Arboretum, May 24, 1974, T. J. Henry, Nyssa sylvatica (Nyssaceae) , 23, 1♀ (PDA). Michigan: Berrien Co.: New Buffalo, June 5, 1920, R. F. Hussey, holotype female ( similis ) (USNM). Minnesota: Ramsey Co.: St. Anthony Park, June 6, 1923, H. H. Knight, 1♀ (USNM). Mississippi: Adams Co.: Natchez, May 15, 1931, H. G. Johnston, 23 (TAMU). Holmes Co.: Tchula, May 18, 1931, H. G. Johnston, 13 (TAMU). Marion Co.: Columbia , May 12, 1931, H. G. Johnston, Betula nigra (Betulaceae) , 113 (TAMU). Pontotoc Co.: Pontotoc, May 27, 1931, H. G. Johnston, Acer pseudoplatanus (Aceraceae) , 23, 2♀ (TAMU). Stone Co.: Wiggins, May 5, 1931, H. G. Johnston, Carya illinoensis (Juglandaceae) , 83, 11♀ (TAMU). Unknown Co.: A. and M. C., May 29, 1931, 13 (TAMU). Missouri: Buchanan Co.: Saint Joseph, June 28, 1943, R. C. Froeschner, 1♀ (USNM). Jackson Co.: Kansas City, June 6, 1900, F. Rogers, 13 (KU). Lafayette Co.: Concordia, July 8, 1964, L. and C. O’Brien, 13 (UCB). Monroe Co.: Union Covered Bridge, June 14, 1984, R. L. Blinn, Platanus occicentalis (Platanaceae) , 2♀ (DAR). Vernon Co.: 4 mi W of Montevallo, June 14, 1966 – June 24, 1966, J. C. Schaffner, Juglans nigra (Juglandaceae) , 33, 12♀ (TAMU). 4 mi W of Montevallo, June 30, 1964, J. C. Schaffner, Platanus occidentalis (Platanaceae) , 13 (TAMU). New York: Cattaraugus Co.: Gowanda, August 2, 1907, E. P. Van Duzee, 23, 4♀ (CAS). Salamanca, July 24, 1911, E. P. Van Duzee, 13, 1♀ (CAS). Erie Co.: Hamburg, July 1, 1911, E. P. Van Duzee, paratypes: 53, 4♀ (CAS). Genesee Co.: Batavia, July 14, 1916, H. H. Knight, 13 (TAMU). Batavia, June 18, 1915, H. H. Knight, 13 (USNM). Livingston Co.: Conesus Lake, July 16, 1916, H. H. Knight, holotype female (apicatus) (USNM). Nassau Co.: Flower Hill near Rt 25A on Ridge Drive East, July 10, 1986, M. D. Schwartz, Platanus occidentalis (Platanaceae) , 23, 6♀ (AMNH). Queens Co.: Corona Heights, jct Van Doren St. and 108th St., June 3, 1986, M. D. Schwartz, Platanus occidentalis (Platanaceae) , 193, 33♀ (AMNH). Corona Hts., Van Doren St and 108th St., June 3, 1986, M. D. Schwartz, Platanus occidentalis (Platanaceae) , 33 (CNC). Flushing Meadow, Corona Park near zoo, July 13, 1985, M. D. Schwartz, Platanus occidentalis (Platanaceae) , 143, 7♀ (AMNH). Flushing Meadow, Corona Park, July 13, 1985, M. D. Schwartz, Platanus occidentalis (Platanaceae) , 33 (CNC). Rockland Co.: Stony Point Battlefield State Park, July 2, 1988, M. D. Schwartz, Platanus occidentalis (Platanaceae) , 13, 1♀ (AMNH). Stony Point Battlefield State Park, July 2, 1988, M. D. Schwartz, Platanus occidentalis (Platanaceae) , 1♀ (CNC). Suffolk Co.: Cold Spring Beach, July 4, 1919, H. M. Parshley, 1♀ (CAS). Gardiner’s Island, July 4, 1924, F. M. Schott, 1♀ (AMNH). Tompkins Co.: Ithaca, Cornell Plantations, June 25, 1982, A. G. Wheeler, Jr., Juglans ailanthifolia (Juglandaceae) , 33, 3♀ (PDA). Ithaca, Cornell University, July 7, 1979, A. G. Wheeler, Jr., Juglans cinerea (Juglandaceae) , 103, 7♀ (PDA). Ithaca, July 1, 1920, H. H. Knight, 1♀ (USNM). Ithaca, July 2, 1920, H. H. Knight, paratypes ( caryae ): 23 (CAS, USNM). Ithaca, June 20, 1920, H. H. Knight, holotype male ( vittiscutis ) (USNM). Ithaca, June 22, 1920, H. H. Knight, Carya cordiformis , holotype male ( caryae ) (USNM). Ithaca, June 23, 1920, H. H. Knight, 23 (CAS, USNM). Ulster Co.: 4 mi NNW of Kerhonkson, Cherrytown, July 1, 1971, P. and B. Wygodzinsky, 13 (AMNH). Westchester Co.: White Plains, June 28, 1919, J. R. de la Torre Bueno, 23, 2♀ (CAS). North Carolina: Buncombe Co.: Swannanoa, 3000 ft, July 15, 1919, R. W. Leiby, 13 (USNM). Madison Co.: Mars Hills, Mars Hills College, July 11, 1988, T. J. Henry and A. G. Wheeler, Jr., Ulmus americana (Ulmaceae) , 13 (USNM). Martin Co.: Williamstown, June 15, 1985, A. G. Wheeler, Jr., Carya sp. (Juglandaceae) , 1♀ (PDA). Mecklenburg Co.: near Matthews, Rt 51 1 mi W of Rt 16, May 24, 1975, A. G. Wheeler, Jr., Platanus occidentalis (Platanaceae) , 1♀ (PDA). near Matthews, Rt 51 1 mi W of Rt 16, May 3, 1974, A. G. Wheeler, Jr., Carya ovata (Juglandaceae) , 1♀ (PDA). Pineville, May 26, 1980, A. G. Wheeler, Jr., Carya illinoensis (Juglandaceae) , 7♀ (PDA). Union Co.: Monroe, May 10, 1987, A. G. Wheeler, Jr., Nyssa sylvatica (Nyssaceae) , 83, 8♀ (PDA). Rt 74 near Indian Trail, May 25, 1980, A. G. Wheeler, Jr., Nyssa sylvatica (Nyssaceae) , 23, 5♀ (PDA). Ohio: Hamilton Co.: Cincinnati, July 16, 1947, P. R. Lowry, 1♀ (TAMU). Oklahoma: Pushmataha Co.: Tuskahoma, May 23, 1928, R. H. Beamer, 13 (KU). Pennsylvania: Bradford Co.: near Centerville, Kinsman Nursery, June 25, 1972, A. G. Wheeler, Jr., Juglans sp. (Juglandaceae) , 1♀ (PDA). Bucks Co.: Montgomeryville, June 30, 1977, T. J. Henry, Rhus sp. (Anacardiaceae) , 13 (PDA). Centre Co.: Bear Meadows, June 25, 1988, A. G. Wheel­ er, Jr., Alnus sp. (Betulaceae) , 73, 7♀ (PDA). State College, June 10, 1977, Schuh, Henry, Wheeler, Platanus sp. (Platanaceae) , 13, 4♀ (AMNH). State College, June 10, 1977, Schuh, Henry, Wheeler, Viburnum sp. (Caprifoliaceae) , 2♀ (AMNH). State College, June 6, 1977, Schuh, Henry, Wheeler, Crataegus sp. (Rosaceae) , 2♀ (AMNH). University Park, Penn State Campus, June 1, 1977, A. G. Wheeler, Jr., Platanus acerifolia (Platanaceae) , 2♀ (PDA). Univesity Park, Penn State Campus, June 7, 1979, A. G. Wheeler, Jr., Rhododendron sp. (Ericaceae) , 13 (PDA). Dauphin Co.: Harrisburg, Cameron Street, July 4, 1974, Henry and Stinner, Platanus acerifolia (Platanaceae) , 13 (AMNH). Harrisburg, Cameron Street, June 4, 1974, B. Stinner, Platanus acerifolia (Platanaceae) , 93 (PDA). Harrisburg, Cameron Street, June 4, 1974, B. Stinner, Platanus occidentalis (Platanaceae) , 83 (PDA). Harrisburg, East Harrisburg Cemetery, June 11, 1977, Schuh, Henry, Wheeler, Platanus sp. (Platanaceae) , 73, 12♀ (AMNH). Harrisburg, East Harrisburg Cemetery, June 20, 1977, A. G. Wheel­ er, Jr., Platanus acerifolia (Platanaceae) , 163 (PDA). Harrisburg, June 27, 1920, Champlain, holotype male ( inopinus ) (USNM). Harrisburg, near Rockville, July 19, 1979, T. J. Henry, Betula nigra (Betulaceae) , 13, 3♀ (PDA). Harrisburg, William Penn High School, June 4, 1974, B. R. Stinner, Platanus occidentalis (Platanaceae) , 83 (PDA). Harrisburg, William Penn High School, June 7, 1974, B. R. Stinner, Betula nigra (Betulaceae) , 23 (PDA). Erie Co.: Erie, Rt 19 and I­90, July 25, 1978, A. G. Wheeler, Jr., Pinus sylvestris (Pinaceae) , 8♀ (TAMU). Fairview, Fairview Nurseries, June 28, 1977, T. J. Henry, Platanus occidentalis (Platanaceae) , 53, 11♀ (PDA). Near Erie, I­90 and Rt 97, July 7, 1976, A. G. Wheeler, Jr., Rhus typhina (Anacardiaceae) , 83, 5♀ (PDA). Monroe Co.: Delaware Water Gap, A. T. Slosson, 53, 2♀ (AMNH). Northampton Co.: Bethlehem, Holy Savior Cemetery, July 31, 1973, Platanus sp. (Platanaceae) , 1♀ (PDA). Philadelphia Co.: Bartram’s Garden, May 20, 1980, A. G. Wheeler, Jr., Carya cordiformis (Juglandaceae) , 13, 4♀ (PDA). Wayne Co.: Abrahamsville, Sunnybrook Nursery, August 10, 1973, A. G. Wheeler, Jr., Juglans cinerea (Juglandaceae) , 1♀ (PDA). Near Calicoon, New York, Curtis Nursery, June 18, 1974, A. G. Wheeler, Jr., Juglans cinerea (Juglandaceae) , 23 (PDA). South Carolina: Greenville Co.: Greenville, May 29, 1976, R. S. Peigler, 1♀ (TAMU). Oconee Co.: Seneca, May 6, 1976, R. S. Peigler, 13 (TAMU). Richland Co.: Columbia , May 13, 1988, A. G. Wheeler, Jr., Quercus phellos (Fagaceae) , 1♀ (USNM). Tennessee: Henderson Co.: S of Lexington, Beech Road, May 20, 1985, A. G. Wheeler, Jr., Betula nigra (Betulaceae) , 33, 2♀ (PDA). Texas: Bandera Co. : 5 mi SE of Medina, May 2, 1983, J. C. Schaffner, 1♀ (TAMU). Bastrop Co.: 5 mi W of Bas­ trop, May 10, 1964, J. C. Schaffner, 1♀ (TAMU). Bosque Co.: Laguna Park, May 2, 1975, J. C. Schaffner, 13 (TAMU). Walnut Springs, May 2, 1975, J. C. Schaffner, 4♀ (TAMU). Brazos Co.: Bryan, May 1, 1965 – May 13, 1970, J. C. Schaffner, 383 (TAMU). College Station, April 26, 1937, H. J. Reinhard, 13 (TAMU). College Station, April 28, 1966, J. C. Schaffner, Carya illinoensis (Juglandaceae) , 33, 11♀ (TAMU). College Station, April 29, 1983, T. J. Henry and A. G. Wheeler, Jr., 1♀ (PDA). College Station, May 2, 1964, J.C. Schaffner, 13 (TAMU). College Station, May 23, 1931, J. C. Gaines, 1♀ (TAMU). College Station, May 5, 1928 – May 18, 1933, H. G. Johnston, 123, 11♀ (TAMU). College Station, May 5, 1928, H. G. Johnston, 13 (USNM). College Station, October 25, 1963, J. C. Schaffner, 13 (TAMU). Edwards Co.: 22 mi S of Rocksprings, April 30, 1982, J. C. Schaffner, 23, 1♀ (TAMU). Erath Co.: Stephenville, April 21, 1972, J. C. Schaffner, Carya illinoensis (Juglandaceae) , 53, 4♀ (TAMU). Gillespie Co.: Enchanter Rock State Natural Area, May 1, 1988, C. B. Barr and M. L. Israel, 113 (LSU). L. B. J. National Historic Park, May 15, 1989, R. Anderson, 1♀ (TAMU). Gonzales Co.: Palmetto State Park, May 30, 1983, D. A. Rider, 13 (DAR). Hamilton Co.: Hamilton, May 18, 1978, B. Cutler, 23, 2♀ (TAMU). Kerr Co.: Kerrville, June 20, 1996, W. F. Chamberlain, 13 (TAMU). Kerrville, May 15, 1990 – June 1, 1993, W. F. Chamberlain, 93, 9♀ (TAMU). Kimble Co.: 6.5 mi S of London, Llano Riv­ er crossing, May 13, 1997, Gillogly, Schaffner, 93, 15♀ (TAMU). Junction, April 29, 1983, J. C. Schaffner, 1♀ (TAMU). Leon Co.: 5.5 mi N of Flynn, May 14, 1997, A. R. Gillogly, 13 (TAMU). Sutton Co.: 16 mi W of Sonora, May 11, 1997, Gillogly, Schaffner, 13 (TAMU). Tom Green Co.: San Angelo, May 17, 1975, M. C. Gruetzmacher, 113, 4♀ (TAMU). San Angelo, May 20, 1975, M. C. Gruetzmacher, 1♀ (TAMU). Travis Co.: vicinity of Long Hollow Creek, April 23, 1994, M. Quinn, E. Riley, R. Wharton, Ulmus crassifolia (Ulmaceae) , 13 (TAMU). Unknown Co.: Navasota, April 19, 1949, M. Polhemus, 23, 12♀ (AMNH). Seguin, May 9, 1964, J. C. Schaffner, 23, 2♀ (TAMU). Uvalde Co.: 11 mi N of Sabinal, May 1, 1983, J. C. Schaffner, Carya illinoensis (Juglandaceae) , 13 (TAMU). Uval­ de, April 24, 1978, T. J. Henry and R. T. Schuh, 233, 2♀ (AMNH). Val Verde Co.: 2.7 mi W of Comstock, April 16, 1985, J. C. Schaffner, 13 (TAMU). 22.5 mi N of Comstock, Devil’s River crossing, May 11, 1997, Gillogly, Schaffner, 223, 19♀ (TAMU). 28 mi N of Comstock, May 10, 1997, Gillogly, Schaffner, 73, 8♀ (TAMU). Wood Co.: nr. Hawkins, jct Hwy 14 and 2869, May 9, 1999, A. Gillogly, W. Godwin, E., Riley, 23 (TAMU). Virginia: Albemarle Co.: Charlottesville, University of Virginia, May 23, 1986, A. G. Wheeler, Jr., Celtis occidentalis (Ulmaceae) , 13 (PDA). Fall Church Co.: Falls Church, June 7, 1900, N. Banks, 1♀ (AMNH). Newport News Co.: Newport News, May 25, 1986, A G. Wheeler, Jr., Carya cordiformis (Juglandaceae) , 4♀ (PDA). Washington, D.C.: July 10, 1889, 1♀ (USNM). July 16, 1899, O. Heidemann, 13, 1♀ (CAS). N. Banks, ex Platanaceae , 2♀ (AMNH). National Arboretum, June 14, 1981, T. J. Henry, Betula nigra (Betulaceae) , 13, 1♀ (USNM). National Arboretum, June 14, 1981, T. J. Henry, Betula nigra (Betulaceae) , 2♀ (USNM). West Virginia: Nicholas Co.: Rt 39, 10 mi N of county line, June 24, 1978, Platanus occidentalia (Platanaceae) , 13 (PDA).

Figures

Fig. 5. Habitus figures of Nearctic Plagiognathus spp. (see p. 263 for localities).

Fig. 15. Antennal segments 1 and 2 of Nearctic Plagiognathus spp.

Fig. 20. Male genitalia of Nearctic Plagiognathus spp. fl = flange.