Nigrotomocoris keltoni Henry and Menard, 2020

Henry, Thomas J. & Menard, Katrina L., 2020, Revision and Phylogeny of the Eccritotarsine Plant Bug Genus Caulotops Bergroth, with Descriptions of Four New Genera and 14 New Species (Hemiptera Heteroptera: Miridae: Bryocorinae) Associated with Agave (Agavoideae Asparagaceae) and Related Plant Genera, Zootaxa 4772 (2), pp. 201-252 : 233-234

publication ID	https://doi.org/ 10.11646/zootaxa.4772.2.1
publication LSID	lsid:zoobank.org:pub:442349A6-2D72-4FBE-9E03-1F94F45096CD
DOI	https://doi.org/10.5281/zenodo.3818952
persistent identifier	https://treatment.plazi.org/id/03F687CA-FFC5-7F2E-FF5C-D95BFC11F7D8
treatment provided by	Plazi
scientific name	Nigrotomocoris keltoni Henry and Menard
status	sp. nov.

Treatment

Nigrotomocoris keltoni Henry and Menard , new species

( Figs. 49–51 View FIGURES 43–54 , 104–106 View FIGURES 104–112 , 131 View FIGURES 129–137 )

urn:lsid:zoobank.org:act:F7626D5D-1F31-4A34-B143-91E7E1F6B156

DIAGNOSIS. This species ( Figs. 49–51 View FIGURES 43–54 ) is distinguished by the uniformly black dorsal coloration, the short antennal segment II that is much less than the interocular width, the distinct pale pleural patches on the thorax, and the spinelike tubercle ( Fig. 131 View FIGURES 129–137 ) on the genital capsule.

It is most similar to N. longirostris and N. nigrus in having uniformly dark antennae and legs. Nigrotomocoris longirostris differs in having the length of antennal segment II is subequal to the interocular width, the pleural areas are uniformly black, and the genital tubercle is conical; N. nigrus in having a distinct broad, yellowish-brown fascia across the base of the head, the labium extends only the middle coxae, and the genital tubercle is broad and blunt apically.

DESCRIPTION. Male (n = 3; holotype measurements in parentheses): Length from apex of head to cuneal fracture 3.20–3.36 mm (3.32 mm); length from apex of head to apex of membrane 1.98–2.27 mm (2.27 mm); widest point across hemelytra 1.44–1.62 mm (1.47 mm). Head: Width across eyes 0.86–0.96 mm (0.94 mm); interocular width 0.59–0.66 mm (0.64 mm). Labium: Length 0.98–1.09 mm (1.09 mm). Antenna: Segment I length 0.27–0.30 mm (0.30 mm); II, 0.40–0.43 mm (0.40 mm); III, 0.24–0.29 mm (0.29 mm); IV, 0.22 mm (0.24 mm). Pronotum: Median length 0.51–0.61 mm (0.59 mm); posterior width 1.18–1.33 mm (1.23 mm).

Macropterous, weakly ovoid. COLORATION. Head: Uniformly black, sometimes with an indistinct yellowishbrown fascia or band across the base; eyes dark reddish brown to fuscous. Labium: Dark brown, extending to bases of hind coxae or slightly beyond. Antenna: Uniformly brown to black. Pronotum, mesoscutum, scutellum uniformly black. Hemelytron: Dark brown to nearly black, lacking a bluish sheen; membrane smoky brown, veins dark brown to black. Ventral surface: Thorax dark shiny brown; pro-, meso- and metapleura each with a round to elongate-oval dirty white patch; abdomen brown to black, genital tubercle dark brown to black. Legs: Dark brown to nearly black.

SURFACE AND VESTITURE. Head: Surface shiny, impunctate, weakly rugose, with short white sericeous setae. Antenna: Setae short, dense, simple. Thorax: Pronotum, mesoscutum, and scutellum with short white simple and sericeous setae; calli and anterior margin somewhat shiny, calli and anterior margin impunctate, disc posterior to calli uniformly punctate. Hemelytron: Setae short, simple, white; surface shiny, without a bluish sheen; veins of membrane with short, distinct setae. Abdomen with sparse simple setae. STRUCTURE. As in generic description.

Male genitalia: Endosoma ( Fig. 104 View FIGURES 104–112 ) and phallotheca as in generic description. Left paramere ( Fig. 105 View FIGURES 104–112 ) C-shaped. Right paramere ( Fig. 106 View FIGURES 104–112 ) elongate, shallow C-shaped, apex broadly spatulate with a small upturned hook.

Female: (n = 5): Length from apex of head to cuneal fracture 2.04–2.20 mm; length from apex of head to apex of membrane 3.00– 3.12 mm; widest point across hemelytra 1.39–1.50 mm. Head: Width across eyes 0.85–0.90 mm; interocular width 0.53–0.56 mm. Labium: Length 1.17–1.22 mm. Antenna: Segment I length 0.43–0.45 mm; II, 0.54–0.56 mm; III, 0.22–0.24 mm; IV, 0.22–0.27 mm. Pronotum: Median length 0.52–0.56 mm; posterior width 1.38–1.50 mm.

Similar to male in size and shape. Genitalia as in generic description.

ETYMOLOGY. This species is named in honor of the late Dr. Leonard A. Kelton ( Henry and Gill 2016), wellknown Canadian mirid specialist and collector of most of the specimens of this new species.

HOST. Taken on Nolina sp. [ Nolinoideae : Asparagaceae ].

DISTRIBUTION. Known only from Durango, Mexico.

TYPE MATERIAL. Holotype ♂, MEXICO: Durango: 25 mi. W of Durango, 7500’, 20 April 1961, Howden & Martin ( CNC, PBI 00124931 ) . Paratypes: MEXICO: Durango: 6♂♂, same data as for holotype (4 ♂♂, CNC [ PBI 00124934-939 ]; 2♂♂, USNM [932, 933]; 6♀♀, Mexico, Durango, 30 mi. W of Durango, 6 June 1964, Howden & Martin ( CNC PBI 00124938-943 ); 33♀♀, Mexico, Durango, 23 mi. W of Durango, 7500’, 29 June 1964, L. A. Kelton (29 ♀♀, CNC [ PBI 00124948-972 ]; 4♀♀, USNM [973-976]).