Dicyphus eckerleini, WAGNER, 1963

DICYPHUS ECKERLEINI WAGNER, 1963 View in CoL

( FIGS 12 G, 23 D, 30, 35)

Dicyphus eckerleini Wagner, 1963: 59 View in CoL (original description); Schuh, 1995: 489 (world catalogue); Linnavuori & Hosseini, 1999: 158 ( Iran); Kerzhner & Josifov, 1999: 22 (Palaearctic catalogue).

Material examined

Bulgaria: Rhodopene , 41.5°N 24.5°E, 1960, M. Josivof, 1♂ ( AMNH _ PBI 00206764 About AMNH ) GoogleMaps AMNH, 1♀ ( UNSW _ ENT 00045428 View Materials ), 1♂ ( UNSW _ ENT 00045427 View Materials ) ( HNHM) .

Diagnosis

Dicyphus eckerleini is recognized by the following combination of characters: only macropterous males and females; body length 4.14–4.19 mm in males, 4.19 mm in females; interocular distance longer than eye width; AI mostly red in males, more stramineous medially in females; AI elongate, c. 1.5× longer than interocular distance; AII length subequal to posterior width of pronotum; shiny dark-brown band on propleuron short, not extending beyond posterior margin of callosite region; callosite region>1.8× longer than collar along midline; pronotal disk region c. 1.5× longer than callosite region; apophysis of left paramere robust and short ( Fig. 23D); endosoma with two membraneous lobes, each with weakly arcuate spicule, lobal sclerites similar size ( Fig. 12G).

Redescription

Males. Macropters only known.

Coloration ( Fig. 30): Dorsum mostly light yellowish brown, with contrasting dark-brown markings. Head: frons+vertex with a short X-shaped reddish brown marking; clypeus dark brown; mandibular plates stramineous; posteromedial region of vertex yellowish brown to orange; postocular margins of head shiny dark brown; gula and bucculae mostly brown. Antennae: AI mostly red, with subbasal brown annulation, tip stramineous; AII with base narrowly whitish, dark-brown annulation on proximal and distal 1/3rd, with medial stramineous band, sometimes with red highlighting. Pronotum: collar white to stramineous, sometimes darker laterally; calli pale orange to light brown with dusty darker markings medially; disk stramineous to whitish. Thoracic pleura and sterna: propleura stramineous with transverse medium to dark-brown band, with ventral margin whitish; mesobasisternum uniformly medium brown, shiny; mesepimeron stramineous; metepisternum dull light brown. Mesoscutum: mostly dark orange-brown, sometimes little paler laterally. Scutellum : lateral angles broadly stramineous with a broad dark reddish brown stripe along midline. Hemelytra : translucent, mostly very light brown, usually with three pairs of obscure red spots, at corial fracture, middle of apical margin of endocorium and tip of cuneus; membrane veins mostly red. Abdomen: venter mostly medium brown with stramineous highlighting.

Structure: Head: interocular distance 1.19–1.26× greater than eye width in macropters. Antennae: AI 1.45–1.58× longer than interocular distance in macropters; AII 1.02–1.17× longer than posterior width of pronotum in macropters. Pronotum: callosite region c. 1.8× longer than collar; calli short; pronotal disk c. 1.5× longer than callosite region. Male genitalia: left paramere with robust and short apophysis ( Fig. 23D); aedeagus with two well-developed endosomal lobes, each lobe with a weakly arcuate endosomal lobal sclerites subequal in size ( Fig. 12G).

Females. Macropters only known. Coloration, vestiture, texture and structure mostly as in males. Head: interocular distance 1.43× greater than eye width. Antennae: AI 1.27× longer than interocular distance; AII 0.90× longer than posterior pronotal width. Pronotum: disk region 1.27× longer than the calli region.