Arenivaga paradoxa, Hopkins, Heidi, 2014

Hopkins, Heidi, 2014, A revision of the genus Arenivaga (Rehn) (Blattodea, Corydiidae), with descriptions of new species and key to the males of the genus, ZooKeys 384, pp. 1-256 : 91-92

Arenivaga paradoxa sp. n. Figures 123-125

Type locality.

MEXICO, BC, 15 mi S San Quintin.

Material examined.

Holotype: ♂ in SDMC labeled "MEXICO: Baja Ca. Norte, 15 mi S San Quintin (dunes), 12 July 1986, Bloomfield, green dot" "HOLOTYPE Arenivaga paradoxa Hopkins, 2012" [red label with black border].

Paratypes: None at this time.

Etymology.

The name is an adjective in the nominative singular. This species is from the Latin meaning strange or marvelous because of its strange modifications of all genital phallomeres.

Distribution.

This species is known only from the type locality in on the west coast of Baja California, Mexico. See Fig. 125.

Diagnosis.

Arenivaga paradoxa is very like Arenivaga estelleae but can be distinguished by the serrated and deeply sinuous medial margin on the right dorsal phallomere, as well as the large horseshoe-shaped gap on the right ventral phallomere. It shares with Arenivaga estelleae and Arenivaga pumila the odd scoop-shaped modification on the left phallomere. See Figs 124, 52 and 130.

Description.

Male.Measurements. Holotype TL = 18.1 mm, GW = 9.6 mm, PW = 5.00 mm, PL = 3.62 mm, TL/GW = 1.88, PL/PW = 0.72. EW = 0.45 mm; OW = 0.50 mm.

Head. Two ocelli large, ovoid and protruding (0.30 × 0.25 mm); vertex dark brown with small ridges in rays around upper apices of eyes and extending onto ocellar tubercles; interocellar space very slightly concave, nearly flat, dark brown, lighter center line with two short horizontal linear indentations. Posterior frons medium brown; slightly concave; anterior frons bulbous, medium brown fading to light brown anteriorly, pointed posteriorly; waxy white smooth anteclypeus. See Fig. 123d.

Pronotum. Pronotum translucent waxy beige, with fine medium brown border; dorsal surface of pronotum with short orange-brown setae that are thicker and longer laterally; pronotal pattern light and medium brown "panther face", with moderate detail discernible; scattered small brown maculations on posterior half of pronotum; no aura. See Fig. 123c.

Body. Wing brace present. Two tarsal claws present. Legs and body light brown; subgenital plate light brown; asymmetrical with rounded apices. See Fig. 123b.

Forewings. Wings extended well beyond abdominal apex; very light brown with light brown blotches; surface translucent with very slight sheen. See Fig. 123a.

Genitalia. Right dorsal phallomere composed of lightly sclerotized, bulbous hook-shaped lobe, articulated with right ventral phallomere on lateral side; medial side of lobe becoming more sclerotized and shagreened as it recedes anteriorly; central field lightly sclerotized; medial margin comprised of two toothed waves. Small central sclerite delicate, concave, finely punctate, with thin sweeping margin that swings forward and attaches to dorsal side of bulbous hook-shaped lobe; anterior edge slightly or punctate and folded back posteriorly; right ventral phallomere extends from and unusually wide articulation to form punctate rounded structure, becoming shagreened on anterior side, with prominent medially projecting flat rough-edged spine located anteriorly; attached anteriorly after wide gap is broad flanged punctate concave arm that extends to depth of adjacent spine, edge toothed. Folded anterior portion of left phallomere dramatically modified into heavily setose, medially projecting, scoop shape. Genital hook with moderate extension to pointed head with broad hook, arm with shallow curve. See Fig. 124.

Habitat and natural history.

All life history elements remain unobserved.