Arenivaga diaphana, 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 : 41-43

Arenivaga diaphana sp. n. Figures 42-44

Type locality.

MEXICO, BCN, 10.1 mi W Catavina.

Material examined.

Holotype: ♂ in SDMC labeled "MEX: Baja California Norte, 10.1 mi W. Catavina, 24-28 Feb 1988, N. Bloomfield, [green dot]" "HOLOTYPE Arenivaga diaphana Hopkins, 2012" [red label with black border].

Paratypes (123): MEXICO: BCN, 6 mi N of Guerrero Negro 3/16/1981, Andrews & Faulkner, Collected on sand dunes at night (1, CSCA); BCN, 6 mi NW of Rancho Ynez, 1/?/1976, 29.43N, 114.43W, 1800 ft, D Ward (1, IMNH); BCN, 36 mi N of San Felipe, 4/18-21/1961, FS Truxal (1, LACM); BCN, Catavina Canyon, 6/1/1981, Werner,Olson,Hetz,Thomas,Burne,Frank, MacLachlan (1, UAIC); BCN, 10.1 mi W of Catavina, 2/24-28/1988, N Bloomfield, green dot (7, SDMC); BCS, 13 mi E of San Ignacio, 3/3/1947, ER Tinkham, mileage 63,817, In pumacy soil by wolf spider hole (1, NMNH); BCN, Arroyo Catavina, 35 mi S of El Progreso, 4/2/1976, Doyen & Rudeblack, light trap (7, EMEC); BCN, El Crucero, 4/3/1976, J Doyen, sifting on sand dunes (1, EMEC); BCN, Punta San Fermin, 4/7-10/71, EL Sleeper, Collected at black light (1, CAS); BCN, Bahia San Luis Gonzaga, 4/3/1973, Doyen,Powell & Szerlip (1, EMEC); BCN, 6 mi. NW Rancho Santa Ynez, 1/?/1976, 29.43.N, 114.43W, 1800', Dave Ward (1, IMNH); BCN, 22 mi. S of Catavina, 4/4/1982, Faulkner & Brown (10, SDMC); BC, Catavina, 4/13/1957, 29.43N, 114.40W, Farmer, (7, SDMC); BC, 2 mi. N of Catavina, 4/4/1935, 29.45, 114.40, CF Harbison (6, SDMC); BCN, 8 mi. NW of El Progreso, 4/17/1965, Cavagnaro, Ross & Vesterby (2, CAS); BCN, Diablito Canyon, east face Sierra San Pedro Martir, 4/5/1973, SL Szerlipat light (2, EMEC); BCN, 6 mi. NW Rancho Santa Ynez, 4/6/1977, 29.43N, 114.43W, 1800', WH Clark, night, ex. Opuntia acanthocarpa (1, IMNH); BCN, Diablito Canyon, east face Sierra San Pedro Martir, 4/5-6/1973, J Powell, at light (1, CAS); BCN, San Pedro Martir Diablito Cyn., 3/26-27/1970, 2000', Gruwell & Perkins, Collected at black light (4, CSLB); BC, Bahia de Los Angeles, 4/15/1947, 28.56 N, CF Harbison, (1 spec), Valle de Amarga (41 spcms.) (41, SDMC); BC, 51 mi. S of Catavina, Hwy. 1, 4/7/1982, Faulkner & Brown, (1, SDMC); BCN, 7 mi. N of Las Arrastras, 6/8/1967, Sleeper & Fisher, Collected at black light (1, CSLB); Lower Cal., Chapala Dry Lake, 6/21/1938, Michelbacher & Ross (1, CAS); Lower Cal., San Quintin, 6/7/1925, HH Keifer (1, CAS); BC, 4 mi. NW Rancho San Juan, 4/3-4/1961, AG Smith, under dung (1, CAS); BCN, 24 mi. N of Ba. San Luis Gonzaga, 4/14/1962, EL Sleeper, Collected at black light (1, CSLB); BCN, Ba. San Luis Gonzaga, 6/17/1970, A Tilzer, BL (1, CSLB); L. Calif., N end of Laguna Salada, 5/8/1939, ES Ross (15, CAS); Baja, N end of Laguna Salada, 5/8/1939, Ross & Michelbacher (4, CAS). All paratypes labeled "Paratype Arenivaga diaphana Hopkins 2012" [blue label with black border].

Etymology.

The name is an adjective in the nominative singular. This species is named from the Greek meaning diaphanous, light, or fairy-like because of its diaphanous appearance.

Distribution.

This species is located in central to southern Baja California Norte, Mexico. See Fig. 44.

Diagnosis.

Arenivaga diaphana may be distinguished by the long serrated edge on the medial margin of the right dorsal phallomere and the deeply incised central field of the same. See Fig. 44.

Description.

Male.Measurements. Holotype TL = 17.1 mm, GW = 8.5 mm, PW = 4.69 mm, PL = 3.73 mm, TL/GW = 2.01, PL/PW = 0.80 EW = 0.70 mm; OW = 0.30 mm. Among paratypes range of TL 15.5-17.9 mm; range of GW 6.2-7.6 mm; range of PW 3.78-4.69 mm; range of PL 2.88-3.71 mm.

Head. Two ocelli very large, ovoid and protruding (0.45 × 0.35 mm); vertex medium brown, with small ridges between apices of eyes and extending onto the ocellar tubercles; scattered small setae; interocellar space concave, medium brown. Frons light brown, concave with wide horizontal indentation posteriorly; anterior portion of frons light brown, bulbous; clypeal suture demarcates light brown anteclypeus; very wide labrum. See Fig. 42d.

Pronotum. Pronotum very small, translucent waxy beige; dorsal surface of pronotum covered with short pale gold setae that are longer and thicker laterally; pronotal pattern light yellow to dark brown “panther-face” depending on specimen, impressed, often with aura of a lighter shade. See Fig. 42c.

Body. Wing brace present. Two tarsal claws present. Legs and body from light brown to dark brown depending on specimen; subgenital plate color matching body color; angular apices. Uniquely amongst Arenivaga , specimens of diaphana often have no genicular spines. See Fig. 42b.

Forewings. Wings extended beyond abdominal apex (up to ~50% of total wing length); particularly diaphanous with band of darker venation laterally; translucent dark brown and hyaline. See Fig. 42a.

Genitalia. Right dorsal phallomere composed of a bulbous lightly scleritized hook-shaped lobe, articulated with right ventral phallomere on lateral side; central field deeply emarginated anteriorly, remainder lightly scleritized; medial rim more heavily scleritized and toothed. Small right anterior dorsal sclerite attached to hook-shaped lobe of right dorsal phallomere posteriorly, punctate, with sinuous curve over toothed margin of right dorsal phallomere ending in a broad curve; small pointed extension projecting anteromedially from curve. Right ventral phallomere extends from articulation to form smooth rounded lobe, increasingly punctate and scleritized anteriorly; after a wide gap a rounded anteriorly projecting curved concave shagreenous arm, with toothed outer surface. Folded anterior portion of left phallomere narrow, setose, otherwise unmodified. Genital hook has long extension to pointed head and short hook; arm narrow with distinct bend. See Fig. 43.

Habitat and natural history.

All life history elements remain unobserved.