Zelus russulumus Zhang & Hart

Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150

Zelus russulumus Zhang & Hart sp. n.

Materials

Type status: Holotype. Occurrence: catalogNumber: UCR_ENT 00069895 ; recordedBy: S.M. Klages; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Amazonas; locality: Manacapuru ; decimalLatitude: 3.3; decimalLongitude: -60.61667; georeferenceSources: Gazetteer; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1905-04-11; Record Level: institutionCode: KU Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009464 ; recordedBy: J. E. Eger; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 300 m; decimalLatitude: -10.3; decimalLongitude: -62.86666; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1992-03-30 to 1992-04-10; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009465 ; recordedBy: J. E. Eger; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 300 m; decimalLatitude: -10.3; decimalLongitude: -62.86666; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1992-03-30 to 1992-04-10; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009466 ; occurrenceRemarks: Drake collection; recordedBy: J. E. Eger; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 300 m; decimalLatitude: -10.3; decimalLongitude: -62.86666; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1996-12-03 to 1996-12-15; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009467 ; occurrenceRemarks: Drake collection; recordedBy: J. E. Eger; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 300 m; decimalLatitude: -10.3; decimalLongitude: -62.86666; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1992-03-30 to 1992-04-10; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009468 ; occurrenceRemarks: Drake collection; recordedBy: J. E. Eger; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 300 m; decimalLatitude: -10.3; decimalLongitude: -62.86666; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1996-12-03 to 1996-12-15; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009469 ; occurrenceRemarks: Drake collection; recordedBy: J. E. Eger; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 300 m; decimalLatitude: -10.3; decimalLongitude: -62.86666; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1997-11-04 to 1997-11-16; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009470 ; occurrenceRemarks: Drake collection; recordedBy: J. E. Eger; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 300 m; decimalLatitude: -10.3; decimalLongitude: -62.86666; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1997-11-04 to 1997-11-16; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009471 ; occurrenceRemarks: Drake collection; recordedBy: J. E. Eger; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 300 m; decimalLatitude: -10.3; decimalLongitude: -62.86666; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1997-11-04 to 1997-11-16; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00009501 ; occurrenceRemarks: Drake Collection; recordedBy: J. E. Eger; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: ECUADOR; stateProvince: Napo; locality: Rio Blanco Ecological Reserve, 6 km E Puerto Misahuali, along Rio Napo ; verbatimElevation: 518 m; decimalLatitude: -1.05037; decimalLongitude: -77.62705; georeferenceSources: Google Earth; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1998-09-07; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00029293 ; recordedBy: W. M. Mann; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BOLIVIA; stateProvince: Pando; locality: Cachuela Esperanza ; decimalLatitude: -10.5375; decimalLongitude: -65.5815; georeferenceSources: Google Earth; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: no date provided; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00029294 ; occurrenceRemarks: Previously designated as 'allotype' of his manuscript name Zelusrussulumus by Hart (1972), a type status not used in the formal publication of this new species name (Zhang et al., 2016); recordedBy: E.A. Chapin; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: COLOMBIA; stateProvince: Meta; locality: Villavicencio ; decimalLatitude: 4.15333; decimalLongitude: -73.635; georeferenceSources: Google Earth; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1946-05-11; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00029301 ; occurrenceRemarks: Drake Collection; recordedBy: J. E. Eger; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km SW of Ariquemes, near Fzda. Rancho Grande ; decimalLatitude: -10.32921; decimalLongitude: -63.46881; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1992-03-30 to 1992-04-10; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00029303 ; occurrenceRemarks: Drake Collection; recordedBy: J. E. Eger; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km SW of Ariquemes, near Fzda. Rancho Grande ; decimalLatitude: -10.32921; decimalLongitude: -63.46881; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1992-03-30 to 1992-04-10; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00029306 ; occurrenceRemarks: Drake Collection; recordedBy: L. E. Peña; sex: Adult Female; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: COLOMBIA; stateProvince: Vaupes; locality: Mitu ; verbatimElevation: 184 m; decimalLatitude: 1.1983; decimalLongitude: -70.1733; georeferenceSources: Gazetteer; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1990-07-06 to 1990-07-17; Record Level: institutionCode: USNM Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00037215 ; recordedBy: S.L. Heydon; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S Ariquemes, RO Fazenda Rancho Grande ; decimalLatitude: -10.46581; decimalLongitude: -63.0996; georeferenceSources: Google Earth; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1991-11-25; Record Level: institutionCode: UCD Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00071241 ; recordedBy: D. A. Rider and J. E. Eger; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Rondonia; locality: 62 km S. Ariquemes, Fazenda Rancho Grande ; verbatimElevation: 187 m; decimalLatitude: -10.29801; decimalLongitude: -62.86806; georeferenceSources: Map - local/regional; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 1990-12-06 to 1990-12-15; Record Level: institutionCode: TAMU Type status: Paratype. Occurrence: catalogNumber: UCR_ENT 00071254 ; recordedBy: Borgmeier and S. Lopes; sex: Adult Male; Taxon: scientificName: Zelusrussulumus; family: Reduviidae; genus: Zelus; scientificNameAuthorship: Zhang and Hart, 2016; Location: country: BRAZIL; stateProvince: Goias; locality: Campinas ; decimalLatitude: -16.66785; decimalLongitude: -49.29149; georeferenceSources: Google Earth; Identification: identifiedBy: G. Zhang; dateIdentified: 2013; Event: eventDate: 2.1.936; Record Level: institutionCode: TAMU

Description

Figs 176, 177, 178

Male: (Fig. 176a, b) Medium-sized, total length 12.21-13.94 mm (mean 13.14 mm, Suppl. material 2); slender. COLORATION: Head reddish-brown, anterior to antennal insertion and posterior third of postocular lobe lighter. Rest of surface of body nearly uniformly blackish-brown, area around humeral angle lighter, somewhat reddish. Membrane with blue, purple iridescence. VESTITURE: Sparsely setose. Dark, moderately dense, short, erect, spine-like setae on dorsum of head, some curved on postocular lobe; ventral surface with sparse, short, erect and recumbent setae, few long setae. Pronotal dorsum nearly glabrous, very sparse, short, erect and recumbent spine-like setae; lateral surface with sparse, erect to recumbent, spine-like setae; setal tracts on anterior lobe very reduced. Pleura with sparse, erect setae and moderately dense, recumbent setae. Abdomen with sparse, short, semi-erect or recumbent setae, intermixed with few longer setae. Pygophore with sparse, short to long, semi-erect or erect setae; Paramere apical half with dense, long setae, nearly as long as medial process. STRUCTURE: Head: Cylindrical, L/W = 2.21. Postocular lobe long; in dorsal view distinctly narrowing through anterior 2/3, posterior 1/3 constant, tube-like. Eye prominent; lateral margin much wider than postocular lobe; dorsal margin removed from postocular transverse groove, ventral margin attaining ventral surface of head in lateral view. Labium: I: II: III = 1: 2.0: 0.5. Basiflagellomere diameter larger than that of pedicel. Thorax: Anterolateral angle bearing small projection; medial longitudinal sulcus shallow near collar, deepening posteriorly. Posterior pronotal lobe with rugulose surface; disc distinctly elevated above humeral angle; humeral angle armed, with dentate or spinous process. Scutellum moderately long; apex angulate, very slightly projected upward. Legs: Very slender. Hemelytron: Surpassing apex of abdomen by about length of abdominal segment seven; quadrate cell small, relatively broad; Cu and M of cubital cell subparallel. GENITALIA: (Fig. 177) Pygophore: Ovoid; mid-lateral fold adjacent to paramere insertion inconspicuous; not expanded laterally in dorsal view. Medial process expanded laterally; broad; long; anteroposteriorly compressed; erect; straight; apex in posterior view rounded, subapical transverse hooklike bridge. Paramere: Cylindrical; long, surpassing medial process; curved ventrad at mid-point, apex recurved. Phallus: Dorsal phallothecal sclerite shield-shaped, sclerite absent laterad to basal arms; lateral longitudinal blade-like heavy sclerotization, pressed against phallothecal sclerite, reaching apical margin; area between these raised; apical portion of phallothecal sclerite not distinctly tapered, slightly convex, lateral margin narrowly angulate, angulation ending anteriorly in sharp, dorsad projection; apex with small medial emargination; posterior margin of foramen broadly concave. Struts attached to dorsal phallothecal sclerite; apically separate, connected by bridge; basally separate throughout. Basal plate arm robust; basally fused; in lateral view strongly curved at midpoint; bridge extremely short; extension of basal plate expanded onto arm.

Female: (Fig. 176c, d) Similar to male, except for the following. Larger than male, total length 17.52-19.39 mm (mean 18.23 mm, Suppl. material 2). Spinous process on humeral angle long.

Diagnosis

The dorsal coloration nearly uniformly dark brown, the head reddish-brown, and the membrane with blue or green iridescence. Most similar to Z. erythrocephalus and Z. paracephalus ; can be distinguished by the medial process wider than that in Z. erythrocephalus and narrower than Z. paracephalus . Females of Z. erythrocephalus , Z. paracephalus and Z. russulumus are difficult to separate.

Etymology

The species epithet refers to the reddish-brown area on the membrane.

Distribution

South America (Fig. 178). Countries with records: Bolivia, Brazil, Colombia and Ecuador.