Arenivaga impensa, 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 : 72-73

Arenivaga impensa sp. n. Figures 93-95

Type locality.

USA, Arizona, Kingman.

Material examined.

Holotype: ♂ in ANSP labeled "Kingman, Ariz. IX-10-1920 (O.C. Poling)" "HOLOTYPE Arenivaga impensa Hopkins, 2012" [red label with black border].

Paratypes (14): USA: AZ, Oak Creek Canyon, 4 mi. N of Sedona, 8/24/1966, RS Beal (1, NAUF); AZ, Indian Garden, Grand Canyon, 7/24/1934, 3800 ft., EL Bell & FE Lutz (2, AMNH); AZ, Coconino Co., Grand Canyon, 6/18/1954, M Cazier (1, AMNH); AZ, Coconino Co., Midgley Bridge, Oak Creek Canyon, 8/25/1952, Leech & Green (1, CAS); AZ, Mohave Co., Hualapai Mts., 7/15/1920, OC Poling (1, ANSP); AZ, Coconino Co., West Fork, Oak Creek Canyon, 9/19/1979, MW Sanderson, A79-31 (1, NAUF); AZ, Yavapai Co., WCCER, 8/18/2007, 34.92N, 112.834W, S Dorr 1 (1, NAUF); AZ, Yavapai Co., Grasshopper Flat, 8/6/1964, TL Bedwell (1, NAUF); AZ, Sawmill Canyon, Hualapai Mts., 8/30/1919, OC Poling (1, ANSP). All paratypes labeled "Paratype Arenivaga impensa 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 ample, large, or strong because of its large size for Arenivaga .

Distribution.

This species is found in the northwestern corner of Arizona. See Fig. 95.

Diagnosis.

The external phenotype of Arenivaga impensa may be confused with Arenivaga tonkawa but the genitalia distinguished them. Arenivaga impensa has a narrower hook-shaped lobe than tonkawa and the structures of the medial margin of the right dorsal phallomere are very different. See Figs 94 and 148.

Description.

Male.Measurements. Holotype TL = 24.0 mm, GW = 11.1 mm, PW = 7.56 mm, PL = 5.23 mm, TL/GW = 2.16, PL/PW = 0.69. EW = 0.45 mm; OW = 0.60 mm. Among paratypes range of TL 18.7-24.6 mm; range of GW 9.0-11.8 mm; range of PW 6.73-8.14 mm; range of PL 4.40-5.23 mm.

Head. Two ocelli large, ovoid and protruding (0.45 × 0.40 mm); vertex brown with small ridges in rays around upper apex of eyes and extending onto ocellar tubercles; interocellar space only slightly concave, brown, with three small round indentations at points of an equilateral triangle. Posterior frons concave, brown grading into waxy beige, with horizontal corrugations; anterior portion of frons bulbous and waxy beige; waxy beige smooth anteclypeus. See Fig. 93d.

Pronotum. Pronotum large, translucent waxy beige; dorsal surface of pronotum with short orange-brown setae that are thicker and longer laterally; pronotal pattern orange-brown "panther face", with little discernible detail; no aura. See Fig. 93c.

Body. Wing brace present. Two tarsal claws present. Legs and body light brown; some specimens with brown maculations laterally on each sternite; subgenital plate orange-brown; asymmetrical with rounded apices. See Fig. 93b.

Forewings. Wings extended well beyond abdominal apex (~35% of wing length); blotchy orange-brown to medium brown; surface opaque and matte. See Fig. 93a.

Genitalia. Right dorsal phallomere composed of lightly sclerotized bulbous hook-shaped lobe, articulated with right ventral phallomere on lateral side; central field lightly sclerotized with deep open rectangular area posterior-medially; medial margin more heavily sclerotized, with short toothed region at posterior end, and prominent flat spine adjacent, remainder of margin uneven. Small central sclerite with uneven margins nearly flat and finely punctate; anterior end bent posteriorly, shagreened with uneven toothed edge; right ventral phallomere extends from articulation to form smooth rounded structure, punctate, corrugated and narrowed anteriorly; attached anteriorly is mildly dorsally projecting flanged concave punctate arm that extends beyond depth of posterior portion of phallomere. Genital hook with moderate extension to rounded head with moderate hook; arm delicate with distinct bend. See Fig. 94.

Habitat and natural history.

All life history elements remain unobserved.