Dicyphus argensis, Sanchez & Cassis, 2018

DICYPHUS ARGENSIS SP. NOV.

( FIGS 3, 9 B, 12 B, 32)

L S I D: u r n: l s i d:z o o b a n k. o r g: a c t: 6 7 3D 1 F D 9 - 1D63-43C0-A3AF-284996836ADD

D i c y p h u s c e r a s t i i: S a n c h e z e t a l., 2 0 0 6: 2 8 8 (misidentification).

Specimens examined

Holotype, Spain: Andalucía, Huelva, Ayamonte, 37.21992ºN 7.38278ºW, 2 Jun 2006, ex. Solanum lycopersicum L. ( Solanaceae ), Sanchez, Martínez & La Spina, ♂ (IMIDA_ENT 00000660) (IMIDA). Paratypes: 12♀♀ (IMIDA_ENT00000662-IMIDA_ENT 00000673), 12 ♂♂ (IMIDA_ENT 00000649-IMIDA_ENT 00000649, IMIDA_ENT 00000661) (IMIDA). Málaga: Nerja, 36.75808ºN 3.84808ºW, 20 m, 31 May 2006, Sanchez, Martínez & La Spina, 15 adults (♂♂ and ♀♀) (D26), ex. Cucurbita maxima Duchesne ( Cucurbitaceae ) (IMIDA). Murcia: Calasparra, 38.22597ºN 1.69862ºW, 340 m, 21 August 2002, Sanchez, Martínez & La Spina, 26♀♀, 23♂♂ (IMIDA_ENT 00000486-IMIDA_ENT 00000534), ex. Cucurbita maxima (IMIDA) . Moratalla: Benizar, 38.27489ºN 1.98497ºW, 25 Sep 2002, Sanchez, 13♀♀, 7♂♂ (IMIDA_ENT 00000603-IMIDA_ENT 00000622), ex. Cucurbita maxima (IMIDA) . Cehegín: Sta. Barbara-Argos, 38.10878ºN 1.78350ºW, 10 Jul 2002, Sanchez, 11♀♀, 14♂♂ (IMIDA_ENT 00000623- IMIDA_ENT 00000648), ex. Cucurbita maxima (IMIDA) . Lorca: 37.64362ºN 1.69439ºW, 19 Sep 2002, Sanchez, 16♀♀, 12♂♂ (IMIDA_ENT 00000575-IMIDA_ ENT 00000602), ex. Cucurbita maxima (IMIDA) .

Etymology

This species is named after the Argos River in the northwest of Murcia Region, Spain.

Diagnosis

Dicyphus argensis is recognized by the following combination of characters: macropterous males ( Fig. 3) and females only; body length, males 3.23–3.91 mm, females 3.82–3.90 mm; pale species; clypeus mostly stramineous; AI mostly pale with subbasal and subapical annulations; AII mostly stramineous with light to dark-brown annulation on distal 1/4 and faint light brown annulation at the base; propleuron with transverse dark-brown band; pygophore with large dark brown spot posteroventrally; left paramere with robust and short smoothly arcuate apophysis ( Fig. 9B); aedeagus with three endosomal lobes and a pair of large arcuate lobal sclerites, slightly asymmetrical ( Fig. 12B).

Description

Males. Macropters only.

Coloration ( Fig. 3): Dorsum mostly pale stramineous to light brown, with wings translucent, with contrasting brown markings, sometimes with minor red/orange highlighting. Head: mostly stramineous to pale brown; frons+vertex with a broad, X-shaped dark-brown marking; clypeus mostly stramineous, with dark-brown markings laterally; maxillary plate stramineous to light brown; postocular margins of head broadly dark brown and shiny, extending dorsally towards gula; gula and bucculae stramineous to light brown. Antennae: AI medially stramineous to pale brown, with subbasal darker brown band and subapical reddish band, sometimes subapically without red highlighting; AII distinctly stramineous medially, with faint brown subbasal band and light to dark-brown annulation on distal 1/4. Pronotum: collar white to stramineous, translucent; calli mostly stramineous, often with minor brown markings adjacent to midline and laterally; disk stramineous to white, translucent, humeral angles narrowly darker brown. Thoracic pleura and sterna: propleuron with distinct transverse medium to dark-brown band, ventral margin white to stramineous; mesobasisternum uniformly dark brown, sometimes with red highlighting; mesepimeron uniformly white to stramineous, dull; metepisternum most often bicoloured, anteriorly and posteriorly stramineous, with dull-brown band medially; metepimeron stramineous. Mesoscutum: orange with light to dark-brown markings. Scutellum : lateral angles broadly stramineous pale with a broad brown stripe along midline. Hemelytra : translucent, mostly very light brown, usually with three small brown spots, at corial fracture, middle of apical margin of endocorium and tip of cuneus; sometimes with red highlighting, mostly on clavus and medial margin of endocorium, rarely with red on tip of cuneus and membrane veins. Abdomen: venter mostly stramineous, with SII and SIII consistently brown; pygophore mostly stramineous with large brown spot ventrally.

Structure: Head: eyes moderately large, removed from pronotum by distance greater than width of AII; interocular distance 1.15–1.33× greater than eye width. Antennae: AI short, 1.34–1.57× longer than interocular distance; AII 1.17–1.25× longer than posterior width of pronotum Disk region 1.20–1.48× longer than the callosite region. Male genitalia: left paramere with robust and short apophysis, with outer margin of apex spatulate and inner margin smoothly arcuate ( Fig. 9B); aedeagus with three well-developed endosomal lobes, pair of arcuate moderately sized lobal sclerites, slightly asymmetrical ( Fig. 12B).

Females. Macropters only. Coloration, vestiture, texture and structure mostly as in males. Head: interocular distance 1.12–1.38× greater than eye width. Antennae: AI 1.23–1.42× longer than interocular distance; AII 1.01–1.08× longer that the posterior pronotal width. Pronotum: disk 1.26–1.47× longer than the callosite region.