Nigrotomocoris keltoni Henry and Menard 2020, new species
Creators: name: Henry, Thomas J.
name: Menard, Katrina L.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Miridae
Nigrotomocoris
Nigrotomocoris keltoni

description: Nigrotomocoris keltoni Henry and Menard, new species
(Figs. 49–51, 104–106, 131)
urn:lsid:zoobank.org:act: F7626D5D-1F31-4A34-B143-91E7E1F6B156
DIAGNOSIS. This species (Figs. 49–51) 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) 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) and phallotheca as in generic description. Left paramere (Fig. 105) C-shaped. Right paramere (Fig. 106) 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]).
description: Published as part of 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, pp. 201-252 in Zootaxa 4772 (2) on pages 233-234, DOI: 10.11646/zootaxa.4772.2.1, http://zenodo.org/record/3816462