A revision of the genus Arenivaga (Rehn) (Blattodea, Corydiidae), with descriptions of new species and key to the males of the genus Author Hopkins, Heidi text ZooKeys 2014 384 1 256 http://dx.doi.org/10.3897/zookeys.384.6197 journal article http://dx.doi.org/10.3897/zookeys.384.6197 1313-2970-384-1 832EF8274642416895252C2AD202EB9B Arenivaga pagana sp. n. Figures 120-122 Type locality. USA, Arizona, Mohave Co., Colorado River, Grand Canyon. Material examined. Holotype: ♂ in NAUF labeled "Mohave Co. AZ, Colorado R. GC, blue label with '3' , rm202.5L, 9/4/03, Coll. R.J.Delph, Ex: Light, New High Water" "HOLOTYPE Arenivaga pagana Hopkins, 2012" [red label with black border]. Paratypes (9): USA: AZ, Mohave Co., Colorado River GC, 9/4/2003, RJ Delph, blue label with '3' , rm 202.5L, ex.light, new high water (2, NAUF); AZ, Mohave Co., Colorado River GC, 9/9/2001, J Rundall, blue label with '3' , rm 198.0R, ex.light, old high water (1, NAUF); AZ, Mohave Co., Colorado River GC, 9/9/2002, RJ Delph, blue label with '3' , rm 186.5L, ex.light, old high water, NAU 107 (1, NAUF); AZ, Coconino Co., 10 mi. N & 4 mi. W of Page, 3/?-9/?/1985, 6000 ft., D Giuliani, antifreeze pit trap (2, CSCA); AZ, Coconino Co., Colorado River GC, 9/1/2002, RJ Delph, blue label with '3' , rm37.3L, ex.light, old high water (1, NAUF); AZ, Coconino Co., Colorado River GC, 10/18/1982, 855 m, LE Stevens, blue label with '3' , M:53R, Nankowap, sand dunes at night, Polyphagidae , Arenivaga det. D.Lightfoot (1, NAUF); AZ, Mojave Co., Virgin River Gorge, 8/3/1976, A.Strong (1, UCRC). All paratypes labeled "Paratype Arenivaga pagana Hopkins 2012" [blue label with black border]. Etymology. The name is an adjective in the nominative singular. This species is named from the Latin meaning "of the country", or rustic. Distribution. This species is found north of the Grand Canyon from southwestern Utah through northwestern Arizona to southeastern Nevada. See Fig. 122. Diagnosis. Arenivaga pagana can be distinguished by the unusual 90 degree bend in the medial margin of the right dorsal phallomere. See Fig. 121. Description. Male. Measurements . Holotype TL = 16.5 mm, GW = 9.1 mm, PW = 5.00 mm, PL = 3.46 mm, TL/GW = 1.81, PL/PW = 0.69. EW = 0.20 mm; OW = 0.30 mm. Among paratypes range of TL 16.2-16.6 mm; range of GW 6.9-9.1 mm; range of PW 4.50-5.00 mm; range of PL 3.43-3.89 mm. Head. Two ocelli very large, ovoid and protruding (0.4 x 0.30 mm); vertex dark brown with small ridges in rays around upper apices of eyes and extending onto ocellar tubercles; interocellar space concave, smooth, medium brown, lighter brown medially, with two white horizontal indentations at base of interocular space. Posterior frons light transparent brown posteriorly fading to waxy beige anteriorly, slightly concave, with horizontal corrugations; anterior frons bulbous and waxy beige; light transparent brown smooth anteclypeus. See Fig. 120d. Pronotum. Pronotum translucent, waxy beige; dorsal surface of pronotum with short orange-brown setae that are slightly thicker laterally; pronotal pattern varying from yellow to orange-brown to dark orange-brown "panther face", with little discernible detail; no aura. See Fig. 120c. Body. Wing brace present. Two tarsal claws present. Legs and body light brown with darker brown maculations laterally on each sternite; subgenital plate light brown with darker margin; asymmetrical with rounded apices. See Fig. 120b. Forewings. Wings extended well beyond abdominal apex (~40% of wing length); translucent light beige with light brown blotches; surface varies from hyaline to very slight sheen depending on specimen. See Fig. 120a. Genitalia. Right dorsal phallomere composed of bulbous lightly sclerotized hook-shaped lobe, articulated with right ventral phallomere on lateral side; central field lightly sclerotized; medial margin more heavily sclerotized, shagreened with rough edge, edge extends into slight point one third back from posterior end; anterior end of rim forms posteriorly curving point; anterior end of margin thickened for s short distance interiorly. Small central sclerite nearly flat, nondescript in shape, finely punctate with posteriorly projecting shagreened flanges at anterior end; right ventral phallomere extends from articulation to form smooth rounded structure becoming punctate and rugose anteriorly; attached anteriorly is mildly dorsally projecting flanged concave punctate arm that extends beyond depth of rest of phallomere. Folded anterior portion of left phallomere finely setose, otherwise unmodified. Genital hook with moderate extension to pointed head with short hook; arm with distinct bend. See Fig. 121. Figure 120. Arenivaga pagana a dorsal habitus b ventral habitus c pronotum d head. Figure 121. Arenivaga pagana , genitalia: a) right dorsal phallomere b right ventral phallomere c small central sclerite d genital hook. Arrow(s) indicate diagnostic characters (see text). Figure 122. Arenivaga pagana , distribution. Habitat and natural history. All life history elements remain unobserved.