Plagiognathus hallucinatus, SCHUH, 2001

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 : 146

Plagiognathus hallucinatus , new species Figures 8 , 17 , 26

HOLOTYPE: Male : ‘‘OR[egon] Linn Co., S. F. Santiam R., 1/ 2 mi. upstream Labanon, VI­ 19–1979, coll. G. Stonedahl, ex Salix sp’’. Deposited in the American Museum of Natural History.

DIAGNOSIS: Recognized by the relatively large size, elongate body form, generally pale, somewhat yellow­white coloration of the dorsum with a longitudinal pattern of light brownish markings, uniformly fumose membrane with yellowish veins (fig. 8), and form of the male genitalia (fig. 26). Similar in size and overall appearance to lattini (fig. 9) and rosicoloides (fig. 12), but coloration more whitish, tibial spines with small dark spots at bases rather than pale, and male genitalia distinctive.

DESCRIPTION: Male: Relatively large, elongate; total length 4.20–5.01, length apex clypeus–cuneal fracture 3.08–3.39, width across pronotum 1.24–1.41. COLORATION (fig. 8): General coloration yellow white with some slightly darker brownish markings; thoracic venter and much of genital capsule dark brown; face with some weak, transverse, brown markings, face at and below level of base of clypeus infuscate to castaneous, polished, shining; scutellum with a dark stripe on midline; endocorium mostly brownish, remainder of corium and clavus mostly pale; membrane fumose, veins yellowish; antennal segments 1 and 2 black (fig. 17); labium infuscate; legs, including all coxae, pale, femora with some dark spots; dorsal tibial spines with dark bases; tibiae dark at articulation with femora. SURFACE AND VESTITURE: Dorsum weakly granular, smooth, pronotum weakly shining, hemelytra dull. Vestiture of dorsum composed of recumbent, golden, shining, simple setae. STRUCTURE: Lateral corial margins weakly convex; frons very weakly swollen, clypeus barely visible from above; anteocular distance 1.3 times diameter of antennal segment 1; head projecting below eye by diameter of antennal segment 1; labium reaching to about apex of hind coxae. GENITA­ LIA (fig. 26): Body of vesica elongate, broadly and smoothly curving, weakly sigmoid, base of vesica falling somewhat below level of secondary gonopore; apical spines moderately long, more or less erect, superposed, anterior spine rather strongly bent subapically; flange narrow.

Female: Body much more strongly ovoid than in male; coloration usually lighter than in male, linear patterning of hemelytra less evident. Total length 4.24–4.54, length apex clypeus–cuneal fracture 3.02–3.20, width across pronotum 1.26–1.36.

ETYMOLOGY: From the Latin, to dream or wander in mind, in reference to my original misidentification of this species.

HOSTS: Salix spp. (Salicaceae) .

DISTRIBUTION: Recorded only from the Willamette Valley of northwestern Oregon.

PARATYPES: USA.— Oregon: Benton Co.: Corvallis, behind Crystal Lake Cemetery, July 27, 1979, G. Stonedahl, Salix sp. (Salicaceae) , 13, 1♀ (AMNH). Linn Co.: 0.5 mi E of Labanon (upstream), Santiam River, June 19, 1979, G. Stonedahl, Salix sp. (Salicaceae) , 83, 11♀ (AMNH, OSU, USNM). Yamhill Co.: 6 mi E of McMinnville, Willamette River, June 8, 1958, K. M. Fender, 13, (OSU). Wheatland Ferry, July 11, 1957, K. McKay­Fender, 13, 3♀ (AMNH).

Figures

Fig. 8. Habitus figures of Nearctic Plagiognathus spp. (see p. 263 for localities).

Fig. 17. Antennal segments 1 and 2 of Nearctic Plagiognathus spp.

Fig. 26. Male genitalia of Nearctic Plagiognathus spp. fl = flange.