Dicyphus flavoviridis, TAMANINI, 1949

DICYPHUS FLAVOVIRIDIS TAMANINI, 1949 View in CoL

( FIGS 4, 7, 10 A, 13 D, 36)

Dicyphus flavoviridis Tamanini, 1949: 2 View in CoL , figs. 3–5 (original description); Carvalho, 1958: 197 (world catalogue); Schuh, 1995: 491 (world catalogue); Kerzhner & Josifov, 1999: 23 (Palaearctic catalogue)

Materials examined

Italy: Trentino: Yal Lagarina , 45.89972°N 11.06083°E, 417 m, 7 Oct 1934, Daiano, 1 adult sex unknown ( MZLU) GoogleMaps . Piemonte: Torino: Giaveno: Maddalena Frazione , 45.02917ºN 7.30361ºE, 762 m, ex. Rubus sp. , 25 Aug 2009, Sanchez , 8♂♂, 5♀♀ ( IMIDA _ ENT 00000130 - IMIDA _ ENT 00000140 , IMIDA_ENT 00000195, IMIDA _ ENT 00000196 ), ex. Stachys silvatica , 25 Aug 2009, Sanchez, 5♂♂, 5♀♀ ( IMIDA _ ENT 00000171 - IMIDA _ ENT 00000180 ) ( IMIDA) GoogleMaps .

Diagnosis

Dicyphus flavoviridis is recognized by the following combination of characters: macropters and brachypters in both sexes ( Tamanini, 1956): moderately sized species, macropterous males 5.05 mm, brachypterous males 3.65–4.06 mm, brachypterous females 3.56– 4.02 mm (no macropterous females examined); body mostly pale yellowish green, with few darker markings ( Fig. 4); clypeus mostly pale yellowish green, with anterior embrownment; propleuron with weak brown transverse band; mesobasisternum at least partly pale yellowish green; cuneus apically dark reddish brown; AI mostly pale yellowish green with subbasal dark-brown annulation and subapical red annulation; AI long, c. 2× longer than interocular distance in both macropterous and brachypterous males; AII 1.41× longer than posterior width of pronotum in macropterous males, 1.48–1.88× longer in brachypterous males; pronotal disk shorter than callosite region in macropterous (0.79×) and brachypterous (0.48–0.63×) males; callosite region c. 3× longer than collar width at middle line in both macropterous and brachypterous males; corium without spots; left side of posterior margin of male abdominal sternite SVIII with sclerotized flange-like process on left side with denticulate substructure ( Fig. 7D); pygophore without posteroventral brown spot left paramere elongate and robust, with caplike apex denticulate margin ( Fig. 10A); endosoma with two lobes, with pair of large asymmetrical moderately arcuate lobal sclerites ( Fig. 13D).

Redescription

Males. Macropterous and brachypterous morphs examined.

Coloration ( Fig. 4): Dorsum mostly stramineous to pale yellowish green with limited brown markings. Head: mostly stramineous to pale yellowish green; frons+vertex with X-shaped dark-brown marking, not extending beyond posterior margin of eyes; anterior region of clypeus and maxillary plate embrowned; postocular margins of head with narrow transverse brown band, sometimes reduced to brown spot adjacent to eye. Antennae: AI mostly stramineous, with base narrowly whitish, subbasal dark-brown annulation and subapical red annulation; AII mostly stramineous with subbasal narrow dark-brown annulation, apical 1/4 dark brown. Pronotum: collar and callosite region stramineous to pale green-yellowish, with medial regions of each callus sometimes embrowned; disk transparent, mostly pale yellowish green to whitish green. Thoracic pleura and sterna: propleuron pale yellowish green, with medium-brown transverse band; mesobasisternum pale yellowish green, sometimes dark brown medially and with dark-brown spot dorsolaterally; mesepimeron and metepisternum including evaporative areas pale yellowish green. Mesoscutum: broadly stramineous to pale yellowish green. Scutellum : lateral angles broadly pale stramineous to yellowish green with brown stripe along midline. Hemelytra : translucent, mostly pale yellowish green without brown spotting associated with setae or large brown spots distally on corium, sometimes exocorium paler; cuneus pale yellowish green, sometimes whitish, with apex dark reddish brown in macropters; membrane fumose in macropters; apex of wings in brachypters paler approaching white, with faint red spot apically. Abdomen: venter uniformly pale yellowish green; posterior margin of left side of SVIII black; pygophore with posteroventral brown spot.

Structure: Head: interocular distance 1.19× greater thaneyewidthinmacropters,1.15–1.31×inbrachypters. Antennae: AI 1.92× longer than interocular distance in macropters, in 1.76–2.09× brachypters; AII 1.41× longer than posterior width of pronotum in macropters, 1.48- 1.88× longer in brachypters. Pronotum: pronotal disk 0.79× longer than the callosite region in macropters, 0.48–0.63× in brachypters; callosite region 3.05–4.06× longer than collar width at middle line in macropters and 2.96× longer in brachypters. Abdomen: posterior margin of left side of SVIII with heavily sclerotized flange-like expansion process with denticulate substructure ( Fig. 7D). Male genitalia: left paramere apophysis robust and elongate, with caplike apex, with minutely denticulate margin, proximal shaft weakly sinuate ( Fig. 10A); aedeagus with two well-developed endosomal lobes, each lobe with large moderately arcuate endosomal lobal sclerites, lobal sclerites asymmetrical ( Fig. 13D).

Females. Only brachypters examined. Coloration, vestiture, texture and structure mostly as in males. Head: interocular distance 1.14–1.41× longer than eye width in brachypters. Antennae: AI 1.65–2.01× longer than interocular distance in brachypters; AII 1.51–1.71× longer than posterior pronotal width in brachypters. Pronotum: disk 0.45–0.69× in brachypters; callosite region 2.63–3.37× longer than collar width at middle line in brachypters. Abdomen: venter pale yellowish green.