Arenivaga trypheros Hopkins 2014

Male. Measurements. Holotype TL = 20.9 mm, GW = 7.4 mm, PW = 4.87 mm, PL = 3.57 mm, TL/GW = 2.82, PL/PW = 0.73. One of the longest and narrowest species of Arenivaga. EW = 0.35 mm; OW = 0.3 mm. The only notable difference in measurements among paratypes was in total length; the holotype total length is equal to the longest observed, the shortest TL = 16.7 mm. Head. Two ocelli large, ovoid and strongly protruding (0.45 × 0.30 mm); vertex brown with small ridges in rays around upper apices of eyes and extending onto ocellar tubercles; interocellar space deeply concave, brown anteriorly fading to lighter brown towards frons. Posterior frons deeply concave, light brown; anterior frons bulbous and light brown; anteclypeus broad, flat, light brown. See Fig. 150d. Pronotum. Pronotum pale, waxy beige-gold; anterior half of dorsal surface of pronotum covered in fine pale setae with scattering of thicker golden setae throughout; pronotal pattern ranges in color from same waxy beige-gold of background, to orange-brown, brown and very dark brown depending on specimen, “panther face” pattern, not well-defined or detailed in its presentation; no aura. See Fig. 150c. Body. Wing brace present. Two tarsal claws present. Legs and body light waxy beige-gold, subgenital plate dramatically asymmetrical with strongly emarginated posterior edge and pointed apices. See Fig. 140b. Forewings. Wings extended well beyond abdominal apex (> 50% of wing length); color varies from pale iridescent gold to iridescent grey-brown. See Fig. 150a. Genitalia. Right dorsal phallomere composed of large bulbous lightly sclerotized hook-shaped lobe, articulated with right ventral phallomere on lateral side; unmodified. Small central sclerite consists solely of thin half circle of sclerotized material beginning near front of right ventral phallomere and sweeping around to rear of same phallomere; right ventral phallomere extends from articulation to form structure rounded at posterior apex and expanding to shagreened and more sclerotized area dorsally; attached anteriorly is U-shaped shagreened lobe bordered by rolled shagreened lip. Left phallomere unmodified. Genital hook with long extension to pointed head and short hook; arm with shallow curve. See Fig. 37.

This species is found in far southwestern Arizona, far southeastern California, northeastern Baja California, Mexico and a short distance down the western coast of the Sea of Cortez. See Fig. 151.