Arenivaga tenax, 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 : 108-110

Arenivaga tenax sp. n. Figures 144-146

Type locality.

USA, New Mexico, Otero Co., White Sands NM.

Material examined.

Holotype: ♂ in MSB labeled "USA: NM, Otero Co., White Sands NM, Interdune Veg., WSNMF, 4008' UV trap, 32.46.64N 106.10.84W, 14 Jul 2010, EH Metzler" "HOLOTYPE Arenivaga tenax Hopkins, 2012" [red label with black border].

Paratypes (50): USA: AZ, Cochise Co., Willcox, 7/20/1970, S Kozloski, black light (16, ASUT); AZ, Portal, 6/28/1956, OL Cartwright, from No. 3 rat nest Neotoma (1, USNM); TX, Monahan Sandhills SP, 7/10/1994, WF Chamberlain, at light, Arenivaga erratica Rehn det. Stiehan 94 (1, TAMU); TX, El Paso, 6/28/1947, Cazier, D Rockefeller Exp. (1, AMNH); TX, El Paso Co., 12 mi NNE of Fabens, 4/23/1998, 31.40.31N 106.02.30W, EG Riley, UV light (2, TAMU); TX, El Paso Co., I10 rest stop 1 mi SE of Fabens, 7/1/1994, W & B Warner (1, WB Bill Warner); TX, El Paso Co., Clint, 6/9/1977, CR Burgess, light trap, Arenivaga erratica Rehn det. J.Stidham 98 (1, TAMU); TX, El Paso Co., Hueco Tanks, 5/15/1971, Murray & Gaumer, at light (1, TAMU); TX, El Paso Co., El Paso, 8/?/????, GW Dunn (1, ANSP); TX, El Paso Co., 7/17/1927, PA Readio (1, ANSP); TX, Culberson Co., Guadalupe Mts., 6/15/2002, W Reeves, Arenivaga erratica Rehn det. Roth 2002 (1, MCZ); NM, Bernalillo Co., Albuquerque, 6/8/1953, JR Stuntz, Truth or Consequences establishment thru Ralph E.Heal,e49,537288 (1, USNM); NM, Hidalgo Co., Rodeo, 8/4/1967, 4100 ft., LD Anderson (1, UCRC); NM, Las Cruces, 6/? or 7/?/1961, JH Russell, at lights (1, USNM); NM, Otero Co., White Sands NM, 7/14/2010, 32.46.64N 106.10.84W, EH Metzler, interdune vegetation (1, MSB); NM, Otero Co., White Sands NM, 6/20/2009, 32.46.69N 106.11.38W, 4000 ft., EH Metzler, interdune vegetation (1, MSB); NM, Dona Ana Co., Las Cruces, 7/26/1982, CA Sutherland (1, NMSU); NM, Dona Ana Co., Las Cruces, 10/5/1985, CA Sutherland, lite (1, NMSU); NM, Portales, 6/29/1965, LL Garcia (1, NMSU); NM, Sandoval Co., Coronado SP, 8/21/1985, Baumann,Huish,Nelson, Wells,Whiting,Bernalillo, Arenivaga erratica (Rehn) Det. AH Barnum 2010 (1, MLBM); NM, Dona Ana Co., Dona Ana, on side of house, 4/29/2002, J Grimes, Blattaria MISC (1, NMSU); NM, Dona Ana Co., Ft. Selden SP, 6/16/1979, CD Ferris (1, FSAC); AZ, Cochise Co., Hwy. 186 at Blue Sky Rd., 8/28-10/9/2011, 32.12.52N 109.46.54W, WB Warner, black cup barrier pitfalls (2, Bill Warner); AZ, Cochise Co., Hwy. 186 at Blue Sky Rd., 7/29-8/28/2011, 32.12.52N 109.46.54W, WB Warner, black cup barrier pitfalls (6, Bill Warner); AZ, Cochise Co., Birch Rd., 4.1 mi. E of Hwy. 191, 7/28-10/9/2011, 31.58.43N 109.46.41W, WB Warner, black cup barrier pitfalls (1, Bill Warner); NM, Mesilla Park, 7/12/1917 (1, ANSP); NM, Sheridan Canyon, Big Hachet Mountains, HA Pilsbry (1, ANSP); AZ, Cochise Co., SWRS, Cave Creek Canyon, Chiricahua Mts., 8/8/1961, 5400 ft., (Eades)taken with light at night (1, ANSP). MEXICO: Ahumada, 7/22/1952, RB & JM Salander, at light (1, ANSP). All paratypes labeled "Paratype Arenivaga tenax 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 tenacious.

Distribution.

This species is found in New Mexico, far northwestern Texas, far southeastern Arizona, and neighboring parts of Mexico. See Fig. 146.

Diagnosis.

Arenivaga tenax can be distinguished by the small medial spine on the medial margin of the right dorsal phallomere and the toothed distal end of that margin. See Fig. 145.

Description.

Male.Measurements. Holotype TL = 19.2 mm, GW = 8.1 mm, PW = 5.22 mm, PL = 3.89 mm, TL/GW = 2.37, PL/PW = 0.75. EW = 0.20 mm; OW = 0.30 mm. Among paratypes range of TL 19.2-21.7 mm; range of GW 7.8-10.0 mm; range of PW 5.22-6.61 mm; range of PL 3.89-4.33 mm.

Head. Two ocelli large, ovoid and protruding (0.40 × 0.30 mm); vertex dark brown with small ridges in rays around upper apices of eyes and extending onto ocellar tubercles; interocellar space concave, dark brown, with three small round indentations at points of an equilateral triangle. Posterior frons dark brown grading into waxy white; concave, smooth with anterior portion of frons bulbous and waxy white; waxy white smooth anteclypeus. See Fig. 144d.

Pronotum. Pronotum translucent waxy beige; dorsal surface of pronotum with short orange-brown setae that are thicker and longer laterally; pronotal pattern brown "panther face" with some discernible detail; no aura. See Fig. 144c.

Body. Wing brace present. Two tarsal claws present. Legs and body light brown, many specimens with brown maculations laterally on each sternite; subgenital plate light brown; asymmetrical with angular apices. See Fig. 144b.

Forewings. Wings extended well beyond abdominal apex (~40% of wing length); blotchy medium brown; surface opaque and matte or with very slight sheen. See Fig. 144a.

Genitalia. Right dorsal phallomere composed of lightly sclerotized bulbous hook-shaped lobe, articulated with right ventral phallomere on lateral side; central field lightly sclerotized; medial margin more heavily sclerotized, with short toothed region at posterior end, and short flat spine medially, otherwise smooth. Small central sclerite nearly flat and finely punctate, with raised sinuous line of teeth at lateral edge; right ventral phallomere extends from articulation to form smooth rounded structure, shagreened, corrugated and narrowed anteriorly; attached anteriorly is mildly dorsally projecting flanged concave punctate arm, with shagreened edge, that extends to depth of posterior portion of phallomere. Folded anterior portion of left phallomere setose, otherwise unmodified. Genital hook with moderate extension to pointed head with moderate hook; arm with smooth shallow curve. See Fig. 145.

Habitat and natural history.

All life history elements remain unobserved.