Phytocoris (Compsocerocoris) amardus, Zamani & Hosseini, 2019

Zamani, Mozhgan & Hosseini, Reza, 2019, Two new species of the genus Phytocoris (Hemiptera: Miridae), with a revised identification key to species of the subgenus Compsocerocoris found in Iran, Zootaxa 4648 (1), pp. 130-140 : 131-134

Phytocoris (Compsocerocoris) amardus sp. nov.

( Figs 1 , 2 , 4 ; Table 1 )

Type material. HOLOTYPE: Male, IRAN: GUILAN PROVINCE: Masal (37°42´N 49°12´E, 53m), M. Zamani, lgt. 25.III.2017 . PARATYPES: 2♂, same information as holotype. The holotype and paratypes are deposited in the insect collection of the Natural History Museum of the University of Guilan ( UGNHM), Rasht, Iran .

Diagnosis: The new species is recognized by the following combination of characters: body brownish, mottled with dark brown markings, length 6.1 – 7.02 mm; ocular index 0.82–0.93; 1 st antennomere 1.17–1.2x and 2 nd anten- nomere 2.66–2.76x longer than head width, 2 nd antennomere 1.83–1.87x longer than posterior width of pronotum; labium surpassing beyond metacoxa and extending to the middle of abdomen; scutellum stramineous, medially with a pair of dark brown stripes; pygophore without tubercle; left paramere somewhat C-shaped, sensory lobe weakly developed, apophysis apically pointed; right paramere laterally with a dentate ridge, apophysis pointed; spiculum boat shaped.

Description. Male. Colouration: body stramineous to light brown mottled with abundant dark brown markings. Head: whitish with reddish to dark brown markings; frons laterally with several transverse dark brown arcs; distal half of clypeus almost dark brown to blackish; mandibular and maxillary plates dark brown. Eyes: greyish or black. Antenna: first antennomere stramineous, mottled with abundant dark brown markings; second and third antennomeres dark brown, proximally whitish; fourth antennomere dark brown ( Figs 1A, C ). Labium: first and second segments stramineous, others dark brown. Thorax: collar stramineous with a pair of large dark brown markings; callosite region stramineous to light brown, mottled with reddish to dark brown markings; pronotum brownish with 3 dark brown markings (4 in paratypes), posteriorly with an undulating transverse interrupted dark brown stripe, posterior margin stramineous; mesoscutum stramineous medially with a pair of large and laterally with a small dark brown markings. Scutellum: stramineous to light brown, anteromedially with a pair of dark brown stripes. Thoracic pleura: mostly dark brown; lateral margins, metathoracic scent gland evaporative area and peritreme stramineous ( Fig. 1C ). Hemelytra: stramineous, mottled with abundant dark brown markings; distal end of embolium and cuneus dark brown; membrane veins stramineous. Legs: coxa, femora and tibia stramineous, with reddish and dark brown line-shape markings; tarsi dark brown. Abdomen: dark brown.

Vestiture: covered with mixture of adpressed whitish and blackish setae. Head, Labium, Thoracic pleura: with adpressed whitish setae. Antenna: first antennomere with adpressed blackish setae along with a few whitish bristlelike setae; second to fourth antennomeres with adpressed whitish setae. Legs: coxa and tarsi with adpressed whitish setae; femora with mixture of adpressed whitish and blackish setae along with a few trichobotria; tibia with mixture of adpressed whitish and blackish setae along with dark brown spines.

Texture: impunctate. Head: frons with several shallow transverse furrows interrupted in the middle, in some specimens indistinct; depression between frons and clypeus distinct.

Structure: body length 6.1–7.02 mm, narrow and subparallel side. Head: higher than long in lateral view ( Fig. 4A ); width across the eyes 1.07–1.14 mm; interocular distance 0.32–0.34 mm; gula short; baccula narrow. Eyes: large, elongated oval, occupying more than two-thirds of head capsule in lateral view, usually contiguous to anterior margin of pronotum, oriented vertically, width of eyes 0.36–0.38 mm; ocular index 0.82–0.93. Antenna: margin of fossula spong touching margin of eyes; antenna longer than body length; first antennomere long, length 1.26–1.37 mm, 1.17–1.2x head width, 3.6–4.2x interocular distance; second antennomere length 2.98–3.09 mm, 2.6–2.7x head width, 1.8x posterior width of pronotum; third antennomere length 1.55 mm; fourth antennomere length 0.71 mm. Labium: surpassing beyond metacoxa and extending to the middle of abdomen; labrum reaching middle of first labial segment. Thorax: trapezoidal; collar broad, length 0.11 mm; delimited by straight suture; calli indistinct; length of pronotum (dorsal view) 0.68–0.75 mm, posterior width 1.62–1.67 mm; posterior margin of pronotum straight; humeral angles rounded; mesoscutum broadly exposed. Scutellum: slightly convex, length 0.8–0.89 mm, anterior width 0.84–0.91 mm. Hemelytra: largely surpassing apex of abdomen; claval commissure 1.8x longer than scutellum; R+M distinct, almost reaching cuneal fracture; medial fracture distinct, not reaching middle of corial length; embolium narrow; costal margin straight; cuneus triangular, 1.5– 2x longer than basal width, inner margin straight, 1.2x longer than scutellum. Legs: coxa contiguous; fore and mesofemora straight, metafemora longer and medially expanded; foretibia 1.8–1.9x longer than combined head and pronotum; tarsal segments linear; first tarsomere shorter than others; parampodia lamellate; claw rounded; pulvilli narrow.

Male Genitalia: pygophore without tubercle; genital opening directed dorsally; left paramere somewhat Cshaped, dorsally with long setae, sensory lobe weakly developed, lateral margin with tubercles or fine teeth, apophysis forming almost right angle with paramere stem, apically pointed ( Figs 2A, B ); right paramere with a few long setae, laterally with a dentate ridge, apophysis pointed ( Figs 2C, D ); endosoma with small membranous lobes (two of them dentate) and an elongated boat shaped spiculum; secondary gonopore moderately large, thickened and triangular, placed medially, ductus seminis broad, tubular and sclerotized, without distinct coils ( Figs 2E, F ).

Female: unknown.

Etymology: The species is named after “Amardus”, an ancient river in Media region (today Sefid-Rud river located in Guilan province); noun in apposition.

Collection circumstances. The species was collected by light trap.

Distribution. Iran (Guilan province).

Differential diagnosis: Based on boat-shaped spiculum, the new species belongs to the dashtanus speciesgroup of the subgenus Compsocerocoris . Phytocoris amardus sp. nov. is close to Ph. dashtanus Linnavuori & Hosseini, 1998 , recognized by the 1 st antennal segment/ head width across the eyes ratio: 1.17–1.2 (in Ph. dashtanus 1.5–1.6 ♂; see Linnavuori 1999), ocular index 0.82–0.93 (in Ph. dashtanus 1.28 ♂; see Linnavuori 1999), sensory lobe of left paramere weakly developed (well developed in Ph. dashtanus ), right paramere subapically constricted, laterally with a dentate ridge, sensory lobe obscure, apex of apophysis sclerotized (right paramere not as above, sensory lobe developed and dentate in Ph. dashtanus ; see Linnavuori 1999)( Fig. 2 ).

Figures

FIGURE 1. Habitus photographs of dry-preserved specimens (male).A, C: Phytocoris (Compsocerocoris) amardus sp. nov.; B, D, Phytocoris (Compsocoris) hyrcaniaensis sp. nov.; A, B, dorsal view; C, D, lateral view. Scale= 1 mm.

FIGURE 2. Male genitalia of Phytocoris (Compsocerocoris) amardus sp. nov. A, B, left paramere, different views; C, D, right paramere, different views; E, F, endosoma, different views. Scale= 0.1 mm.

FIGURE 4. Head in lateral view, and tibia. A, C, D, Phytocoris (Compsocerocoris) amardus sp. nov. B, E, F, Phytocoris (Compsocerocoris) hyrcaniaensis sp. nov. C and E middle tibia, D and F fore tibia. Scale= 1 mm.

Tables

TABLE 1. Diagnostic taxonomical characters in Iranian species of Phytocoris subgenus Compsocerocoris (based on males) (Numbers are ratio or size (in mm)) (data derived from Linnavuori 1999, 2006, 2008, 2009; Hosseini & Mohammadi 2019).

acters	Bodylength	Ocularindex		1 AS st1 / headwidth acrosstheeyes ratio	2 AS nd/ headwidth acrosstheeyes ratio	Width / lengthof pronotum	2 AS / posterior ndmarginofprono- tum Pygophoretu- bercle Spiculum			Leftparamere		Head / pronotum
Ph. amygdali		5–5.5	1.4–1.5	0.9–1.18	2.41–2.45	2		1.7–1.9	with	dentate 13 teeth	Not T-shape	0.6–0.66
Ph. arakhne		4.5–5	1.6–1.64	0.9	1.7–1.8	1.9		1.15–1.2	without	dentate 12 teeth	Not T-shape	0.7
Ph. dentistylus		6.25	1.5	1.03	2.12	1.7		1.44	with	dentate 19 teeth	Not T-shape	0.7
Ph. strigilifer		6.5	0.94–1.3	1.16–1.18	?	2		1.4–1.52	without	dentate 12+6 teeth	Not T-shape	0.6
Ph. minabanus		5.75	1.12–1.22	0.97	2.1	2		1.27	without	dentate 5 teeth	T-shape	0.6
Ph. sahragardi		5.5–6.75	1.2–1.45	1.16	2.14–2.34	2		1.4–1.6	without	dentate 16 teeth	Not T-shape	0.8
Ph. mirzanus		5.2–6.75	1.93–2.14	1	2.2	2		1.2–1.3	with	dentate 9 teeth	Not T-shape	0.6
Ph. stysi		6–6.5	1.25–1.35	1.15–1.33	2.5–2.65	1.8–2		1.62–1.81	with	dentate 15 teeth	Not T-shape	0.65
Ph. darakiensis		5.3–5.5	1.45–1.54	1.13–1.34	2.31–2.87	2.23–2.34 1.31–1.68			with	dentate 25 teeth	Not T-shape	0.51
Ph. dashtanus		7.5	1.28	1.5–1.6	3.1	1.8–2		1.8–1.9	without	boat shape	Not T-shape	0.62
Ph. falcatus		6.5–7	1.35–1.44	1.4–1.45	2.6	1.7–1.75		1.7–1.8	without	boat shape	Not T-shape	0.65
Ph. hoberlandti		7.75–8	1.02–1.2	1.5–1.6	3	2		1.8–2.02	with	trough shape	Not T-shape	0.6–0.67
Ph. moestus		6.7–7.2	0.98–1.06	1.48–1.66	?	?		1.94–2.1	without	boat shape	T-shape	?
Ph. monocerus		8	1.12–1.16	1.5	2.9	2		1.9	with	boat shape	Not T-shape	0.65
Ph. paghmanus		5.2–5.75	1.44–1.51	?	?	2		?	with	scoop shape	Not T-shape	0.6
Ph. thisbe		6.5	1.12	1.4	?	2		?	without	serrate With 11	T-shape	0.6
Ph. bavanus		6–6.5	1.44	1.4	3	1.9–2.2		1.95	without	teeth serrate With 21	Not T-shape	0.6
Ph. hyrcaniaensis		5–5.5	1.2–1.3	1.12–1.26	2.3–2.6	1.9–2.2		1.7–1.8	without	teeth boat shape	T-shape	0.67–0.7
sp. nov. Ph. amardus		6.1–7.02	0.82–0.93	1.17–1.2	2.6–2.7	1.9–2.02		1.8	without	boat shape	Not T-shape	0.66–0.7
sp. nov.

1 AS: Antennal segment