Henryognathus thomasi, Schuh, Randall T. & Salas, Ruth, 2018

Schuh, Randall T. & Salas, Ruth, 2018, Henryognathusthomasi, a new genus and new species of Arctostaphylos-feeding plant bug from western North America (Miridae, Phylinae, Phylini), ZooKeys 796, pp. 281-289 : 283-288

Henryognathus thomasi sp. n. Figures 1, 2, Table 1

Diagnosis.

Recognized by the moderate size, pale, yellow to yellow-orange coloration in preserved specimens (Fig. 1A, B.), the antennae black in male except segment 1 pale on basal half and with pale apical annulus (Fig. 1A, B), sometimes with central 2/3 of segment 2 pale; and by the structure of the male genitalia (Fig. 2). Among North American taxa most easily confused with species of Americodema and Occidentodema based on pale coloration and head shape, but lacking the black stripe on the dorsal surface of metafemur as found in those taxa, and pale Plagiognathus species (e.g., P. luteus Knight), but easily distinguished by its longer, slender, curving apical spines on endosoma, as opposed to the bladelike apical spines in Plagiognathus ( Schuh 2001: figs 20-33).

Description.

Male: Very elongate ovoid, of moderate size; mean total length 3.73, mean length apex clypeus-cuneal fracture 2.56, mean width across pronotum 1.04 (Table 1).

Coloration (Fig. 1A, B): General coloration pale, yellowish or yellow orange, translucent; membrane pale, veins of cells white; antennal segment 1 pale on basal two-thirds, nearly black on distal third with a pale apical annulus with subapical black spine on interior surface, remaining antennal segments entirely black, or segment 2 sometimes pale medially; labium infuscate at apex; legs generally pale, hind femur with weak dark spots distally; tibiae with dark spines on dorsal surface at bases of black spines, hind femur black at femoral articulation.

Surface and vestiture (Fig. 1A, B): Dorsum weakly granular, smooth, weakly shining. Vestiture of dorsum with reclining pale, golden-shining, simple setae.

Structure: Hemelytra sloping laterally, corial margins very weakly convex; frons tumid, clypeus visible from above; head projecting below eye by diameter of antennal segment 1; labium reaching to at least posterior margin of abdominal sternum 4. Tarsal claws as in generic description.

Genitalia (Fig. 2): In addition to attributes in generic description, ventral spine smoothly curving over an arc of nearly 180 degrees, dorsal spine bent but not uniformly curving. Phallotheca L-shaped, with a broad posterolateral opening on distal portion. Left paramere short, anterior process with a strong subapical seta. Right paramere elongate, parallel sided over most of length, with a fingerlike apex.

Female: Very similar in shape and proportions to male. Mean total length 3.93, mean length apex clypeus-cuneal fracture 2.77, mean width across pronotum 1.11 (Table 1). Coloration as in male (Fig. 1A, B). Female genitalia: Not examined.

Etymology.

Named for Thomas J. Henry.

Hosts.

Arctostaphylos pungens Kunth, A. viscida Parry (fig. 1C, D), and A. sp. ( Ericaceae ). We regard the very few specimens labeled as occurring on Mimosa biuncifera Benth. ( Fabaceae ), Quercus turbinella Greene ( Fagaceae ), and Rhamnus californica Eschsch. ( Rhamnaceae ) to represent either sitting records or the result of commingling of specimens in the field. A total of 54 specimens was collected at light or host information was not recorded by the collector.

The habit of feeding on Arctostaphylos is shared with other Phylinae such as Arctostaphylocoris arizonensis Schuh and Schwartz, A. manzanitae (Knight), Atractotomus schwartzi Stonedahl, four species of Ceratopsallus Schuh ( Schuh 2006), the two known species of the orthotyline genus Melymacra Schwartz, four species of the mirine genus Phytocoris Hahn, and the dicyphine Tupiocoris killamae Schwartz and Scudder. In all of these cases the distribution of the bugs on their hosts can be extremely patchy.

Distribution

(Fig. 3): Known from Gila, Graham, Mohave, and Pima counties in Arizona and from Los Angeles, Kern, Mariposa, Riverside, Sonoma, and Tulare counties in California.

HOLOTYPE: USA: California: Tulare Co.: NE of Springville on Bear Creek Rd near Scicon, 36.21394°N, 118.7716°W, 700 m, 23 May 2004, R.T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero, Arctostaphylos viscida Parry ( Ericaceae ), det. A. Sanders UCR140624, 1♂ (AMNH_PBI 00321005) (AMNH).

PARATYPES: USA: Arizona: Gila Co.: 8 mi SW jct Rts 87 and 188 (off Rt 87), Tonto National Forest, 33.55989°N, 111.21341°W, 1219 m, 27 May 1983 - 28 May 1983, R. T. Schuh and G. M. Stonedahl, 1♂ (AMNH_PBI 00414940) Arctostaphylos pungens Kunth ( Ericaceae ), 3♂ (00414935-00414937), 2♀ (00414938, 00414939) (AMNH). Old CCC Campground S of Globe on Pioneer Pass Rd, 33.39417°N, 110.78583°W, 1433 m, 30 May 1983 - 31 May 1983, R.T. Schuh, G.M. Stonedahl and B.M. Massie, 21♂ (00414898-00414918), 10♀ (00414925-00414934) (AMNH), 1♂ (00414892), 1♀ (00414919) (CAS), 1♂ (00414893), 1♀ (00414920) (CNC), 1♂ (00414894), 1♀ (00414921) (UCB), 1♂ (00414895), 1♀ (00414922) (UCR), 1♂ (00414896), 1♀ (00414923) (USNM), 1♂ (00414897), 1♀ (00414924) (ZISP). Graham Co.: Pinaleno Mountains, Stockton Pass, 32.64083°N, 109.84306°W, 1631 m, 01 Jun 1983 - 02 Jun 1983, R. T. Schuh and G. M. Stonedahl, 1♀ (00414944) (AMNH). Mohave Co.: Hualapai Mountains, SE of Kingman, T20N R15W, 35.18944°N, 114.05222°W, 1585 m, 09 Jun 1983 - 10 Jun 1983, R. T. Schuh, M. D. Schwartz, G. M. Stonedahl, Quercus turbinella Greene ( Fagaceae ), 1♀ (00414943) (AMNH). Pima Co.: 4 mi N of Coronado Natl. Forest boundary on Mount Lemmon Rd, 32.36°N, 110.7°W, 1219 m, 11 Jun 1983, R.T. Schuh, Schwartz, and Stonedahl, Mimosa biuncifera Benth. ( Fabaceae ), 1♂ (00414942) (AMNH). 7.5 mi S of Coronado Natl. Forest boundary on Mount Lemmon Rd, 32.31°N, 110.72°W, 1433 m, 11 Jun 1983, R.T. Schuh, Schwartz, and Stonedahl, 1♂ (00414941) (AMNH). California: Kern Co.: 7 km W of Wofford Heights on Rt 155, 35.725°N, 118.52555°W, 1520 m, 26 Jul 1999, M.D. Schwartz, Arctostaphylos sp. ( Ericaceae ), 5♂ (00414945-00414949), 10♀ (00414956-00414965) (AMNH), 1♂ (00414950), 1♀ (00414953) (CNC), 1♂ (00414951), 1♀ (00414954) (UCR), 1♂ (00414952), 1♀ (00414955) (USNM). Cedar Creek Campground on Rt 115, 35.73726°N, 118.61183°W, 1500 m, 26 Jul 1999, M.D. Schwartz, Arctostaphylos sp. ( Ericaceae ), 5♂ (00414966-00414970), 4♀ (00414971-00414974) (AMNH). Los Angeles Co.: Tanbark Flats, 33.69111°N, 116.67056°W, 25 Jun 1952, A. A. Grigarick, 1♂ (00125674) (UCD). Mariposa Co.: NW of Mariposa off Rt 140 on Bear Valley Rd, 37.57111°N, 120.13243°W, 663 m, 25 May 2004, R.T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero, Arctostaphylos viscida Parry ( Ericaceae ), det. A. Sanders UCR140623, 3♂ (00321062-00321064), 1♀ (00321065), 2♂ (00321066, 00321067), 2♀ (00321068, 00321069) (AMNH). W of Mariposa near Mt. Bullion, 37.49936°N, 120.0435°W, 675 m, 25 May 2004, R.T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero, Arctostaphylos viscida Parry ( Ericaceae ), det. Field ID, 88♂ (00320031- 00320093, 00414993-00415017), 41♀ (00320094-00320103, 00415036-00415065, 00415067) (AMNH), 3♂ (00414975-00414977), 3♀ (00415018-00415020) (CAS), 3♂ (00414978-00414980), 3♀ (00415021-00415023) (CNC), 3♂ (00414981-00414983), 3♀ (00415024-00415026) (UCB), 3♂ (00414984-00414986), 3♀ (00415027-00415029) (UCR), 3♂ (00414987-00414989), 3♀ (00415030-00415032) (USNM), 3♂ (00414990- 00414992), 3♀ (00415033-00415035) (ZISP). Riverside Co.: San Jacinto Mountains, 33.81446°N, 116.67918°W, 21 Jul 1929, R. H. Beamer, 2♂ (00292384, 00292385) (KU). San Jacinto Mountains, Pinon Flat, 34.74417°N, 118.89722°W, 28 May 1940, C. D. Michener, Arctostaphylos sp. ( Ericaceae ), 2♂ (00081128, 00081132) (AMNH), 3♂ (00081129-00081131) (UCB). Sonoma Co.: Occidental, 38.4075°N, 122.94722°W, 16 Aug 1938, R. I. Sailer, 1♂ (00292386) (KU). Tulare Co.: Mineral King Rd E of Three Rivers, 36.47356°N, 118.8465°W, 492 m, 24 May 2004, R.T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero, Arctostaphylos viscida Parry ( Ericaceae ), det. Field ID, 1♂ (00321049), 12♀ (00321050-00321061) (AMNH). NE of Springville on Bear Creek Rd near Scicon, 36.21394°N, 118.7716°W, 700 m, 23 May 2004, R.T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero, Arctostaphylos viscida Parry ( Ericaceae ), det. A. Sanders UCR140624, 11♂ (00320996-00321004, 00321006, 00321007), 29♀ (00321014-00321042) Rhamnus californica Eschsch. ( Rhamnaceae ), det. A. Sanders UCR140642, 2♂ (00321043, 00321044), 4♀ (00321045-00321048) (AMNH), Arctostaphylos viscida Parry ( Ericaceae ), det. A. Sanders UCR140624, 1♂ (00320990), 1♀ (00321008) (CAS), 1♂ (00320991), 1♀ (00321009) (CNC), 1♂ (00320992), 1♀ (00321010) (UCB), 1♂ (00320993), 1♀ (00321011) (UCR), 1♂ (00320994), 1♀ (00321012) (USNM), 1♂ (00320995), 1♀ (00321013) (ZISP).

Other specimens examined.

USA: California: Mariposa Co.: W of Mariposa near Mt. Bullion, 37.49936°N, 120.0435°W, 675 m, 25 May 2004, R.T. Schuh, Cassis, Schwartz, Weirauch, Wyniger, Forero, Arctostaphylos viscida Parry ( Ericaceae ), det. Field ID, 1 nymph (00415068) (AMNH).