Arenivaga estelleae, 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 : 49-51

Arenivaga estelleae sp. n. Figures 51-53

Type locality.

USA, California, San Diego Co., north of Fallbrook.

Material examined.

Holotype: ♂ in LACM labeled "July 27, 1957, 2.3 mi N. Fallbrook, San Diego Co., Calif., Lionel A Stange "HOLOTYPE Arenivaga estelleae Hopkins, 2012" [red label with black border].

Paratypes (41): USA: CA, San Diego Co., NAS Miramar 4, 11/13/1996, N Bloomfield, blacklite (1, SDMC); CA, San Diego Co., MCAS Miramar, 9/18/1998, N Bloomfield, blacklite (1, SDMC); CA, San Diego Co., Mission Gorge Dam, 7/26/1976, illegible (1, SDMC); CA, San Diego Co., San Diego, 6/10/1953, J Powell, at light (1, EMEC); CA, San Diego Co., Lake Hodges, 8/24/1976, DK Faulkner (1, SDMC); CA, San Diego Co., N San Vicente Res, 8/19/1976, DK Faulkner (1, SDMC); CA, San Diego Co., 2.3 mi N of Fallbrook, 7/27/1957, LA Stange (1, LACM); CA, San Diego Co., Boulevard Manzanita, 10/10/1980, R Messner (1, SDMC); CA, San Diego Co., Boulevard Manzanita, 10/5/1979, R Messner (1, SDMC); CA, San Diego Co., Boulevard Manzanita, 8/7/1979, R Messner (1, SDMC); CA, San Diego Co., Boulevard Manzanita, 7/12/1979, R Messner (4, SDMC); CA, San Diego Co., Boulevard Manzanita, 6/3/1980, R Messner (1, SDMC); CA, San Diego Co., Boulevard Manzanita, 5/28/1980, R Messner (1, SDMC); CA, San Diego Co., Rancho Santa Fe, 8/25/1958, JR Northern (1, LACM); CA, San Diego Co., San Diego, 6/19/1974, Munzenmaier & Patten, Japanese beetle trap, 74524-38, Arenivaga sp. Det. AR Hardy 1974 (1, CSCA); CA, San Diego Co., Boulevard Manzanita, 7/29/1979, R Messner (1, SDMC); CA, San Diego Co., Alpine, 7/18/1990, J Mitchell (1, SDMC); CA, San Diego Co.,, NAS Miramar 2, 5/19/1997, N Bloomfield, blacklite (1, USNM); CA, San Diego Co., San Diego, 7/17/1912, FE Maisdell (1, CAS); MEXICO: BC, 4 mi SW of La Zapopita, Valle de Trinidad, 4/16/1961, FS Truxal (4, LACM); BC, 11 mi E of Ojos Negros on road to Laguna Hanson, 8/9/1988, 1160 m, Weissman & Lightfoot, Stop #88-85 (1, CAS); BC, 8 mi E of Tecate, 7/6/1984, Brown & Tocco, green dot (1, CAS); BC, Ensenada, 8/30/1952 (2, USNM); BC, turnoff Hwy 1 to Motel Durado, 3 km S of Ensenada, 7/18/1977, D Weissman, coastal sand dunes (1, CAS); BC, 17 mi S of Ensenada, 6/14/1938, Michelbacher & Ross (1, CAS); BC, Hwy 2, 5.7 km W of El Condor at KM 88.7, 8/19/1995, 1210 m, Weissman & Lightfoot, Stop #95-65 (1, CAS); BC, 13 mi SW of La Zapopita, 6/14/1963, EL Sleeper, blacklite (2, CAS); BC, 17 mi S of Ensenada, 6/14/1938, Michelbacher & Ross, photo.spec. (1, LACM); BC, Km 56 on road to Sierra San Pedro Martir Park off Hwy 1, 8/4/1981, 900 m, Lightfoot & Weissman, #81-64 (1, CAS). All paratypes labeled "Paratype Arenivaga estelleae Hopkins 2012" [blue label with black border].

Etymology.

The name is a noun in the genitive case. This species is named for my grandmother, Estelle Beaumont, who taught me so much including how to be firm yet kind; also for the Latin stella, meaning star, because it is a lovely little roach.

Distribution.

This species is found in far southwestern California and northwestern Baja California Norte, Mexico. See Fig. 53.

Diagnosis.

Arenivaga estelleae is smaller and browner than average for Arenivaga and could be confused with the parapatric species Arenivaga gaiophanes (in its external appearance) and Arenivaga paradoxa (in its genitalia). These three species are most likely closely related. Arenivaga estelleae may be distinguished by the broad central field on the right dorsal phallomere and very wide gap on the right ventral phallomere. See Figs 52 and 124.

Description.

Male.Measurements. Holotype TL = 16.5 mm, GW = 8.9 mm, PW = 4.93 mm, PL = 3.31 mm, TL/GW = 1.85, PL/PW = 0.67. EW = 0.45 mm; OW = 0.45 mm. Among paratypes range of TL 15.1-20.6 mm; range of GW 7.2-9.8 mm; range of PW 4.57-5.91 mm; range of PL 3.31-4.25 mm.

Head. Two ocelli large, ovoid and protruding (0.3 × 0.2 mm); vertex flat and medium brown with small ridges in rays around upper apex of eyes and extending onto ocellar tubercles; interocellar space concave with fine horizontal corrugations; medium brown laterally shading to light brown in concavity; deep vertical indentations medial to ocelli. Frons light brown, concave; anterior portion of frons bulbous, light brown medially shading darker laterally; pale beige anteclypeus with one horizontal corrugation. See Fig. 51d.

Pronotum. Pronotum translucent, waxy beige; dorsal surface of pronotum with short fine brown setae centrally and posteriorly grading to longer, thicker setae laterally and anteriorly; pronotal pattern brown "panther face"; brown maculations scattered across posterior 80% of dorsal surface of pronotum; no aura. See Fig. 51c.

Body. Wing brace present. Two tarsal claws present. Legs beige, body light brown with dark brown markings on lateral anterior portion of each sternite; subgenital plate light brown; strongly asymmetrical with rounded apices. See Fig. 51b.

Forewings. Wings extended well beyond abdominal apex (~40% of wing length); color light brown to dark medium brown depending on specimen, faintly blotchy; surface matte and opaque. See Fig. 51a.

Genitalia. Right dorsal phallomere composed of bulbous lightly sclerotized hook-shaped lobe, articulated with right ventral phallomere on lateral side; central field sclerotized; medial margin with slight concavity, shagreened with toothed margin; anterior and posterior margins deeply emarginate, posterior margin curving back out to several teeth; interior of lateral articulation setose; broad rolled sclerotized lip projecting posteriorly from lateral articulation to several teeth. Small central sclerite broad, flat and finely punctate with posteriorly projecting, sclerotized lip at anterior end; right ventral phallomere extends from articulation to form rounded shagreened structure with acute edge; attached anteriorly is mildly dorsally projecting flanged arm, shagreened with roughly toothed edge. Folded anterior portion of left phallomere dramatically modified into heavily setose, medially projecting, scoop shape. Genital hook with short extension to pointed head with average hook; arm robust. See Fig. 52.

Habitat and natural history.

All life history elements remain unobserved.