Phaeoxantha ( Euphaeoxantha ) wimmeri ( Mandl, 1958 )

Phaeoxantha ( Euphaeoxantha) wimmeri ( Mandl, 1958) View in CoL .

( Figs 310–324 View FIGURES 310–312 View FIGURES 313–318 View FIGURES 319–324 )

Megacephala ( Phaeoxantha) wimmeri Mandl, 1958: 30 View in CoL t, 30 d, pl. 3, figs. 6–7, 10.

Phaeoxantha wimmeri View in CoL : Guerra, Brzoska & Pearson 1997: 26.

Megacephala ( Phaeoxantha) wimmeri View in CoL : Wiesner 1992: 45.

Phaeoxantha wimmeri View in CoL : Cassola & Pearson 2001: 11.

Phaeoxantha wimmeri View in CoL : Wiesner 2020: 30.

Type locality. Bolivia: department of Santa Cruz, alt. 500 m.

Type material. Holotype ( Fig. 313 View FIGURES 313–318 ) and allotype in NHMB, holotype labelled: “ Bolivia oriental – / Santa Cruz 500m – / 10.10.54 Zischka” [bluish print/handwritten] // “ Megacephala / bucephala / W. Horn” [sic! handwritten] // “Meg. (Phaeox.) / testudinea [sic!] / det Dr. Ing. K. Mandl 1958 ” [handwritten/printed, additionally crossed] // “ Holotypus / Meg. (Phaecox.) / Wimmeri m. ♂ / det Dr. Ing. K. Mandl 1958 ” [red, handwritten/printed]. Other paratypes ( examined from photos Figs 310–311 View FIGURES 310–312 ). 1 ♂, 1 ♀ in SDEI with same first two labels as holotype [the second label crossed] // “ Paratypus Megac. (Phaeox.) / Wimmeri m / det Dr. Ing. K. Mandl 1958 ” [red, handwritten/printed]. 57 paratypes in ZSM (not examined).

Other material examined. 2 ♀♀ in CCJM: “ Bolivia oriental. / Santa Cruz – 500 m / 20.XI.1955, Zischka lgt.” . 4 ♂♂, 2 ♀♀ in COSJ , 4 ♂♂, 2 ♀♀ in CCJM , 1 ♂ in CJVB: “ Bolivia: Santa Cruz depart. / 80 km NW of city Sta. Cruz / Yapacani env. 25.XI.2007 / O. Šafránek lgt.” . 2 ♂♂, 4 ♀♀ in CJVB: ibid. except for: “ 21.I.2017 Kamil Klečka leg.” . 1 ♀ in CJVB: “ Bolivia: Santa Cruz / 80 km NW of city Sta. Cruz / El Torno env. / 21.I.2017 leg. Jakub Netušil ” . 1 ♂, 2 ♀♀ in COSJ: “ Bolivia: Cochabamba depart. / cca 5 km N from Villa Tunari / S16°54´46´´; W65°24´24´´ 270 m / 22.XI.2012, light trap / O. Šafránek et M. Amaya lgt.” GoogleMaps .

Differential diagnosis. Phaeoxantha ( Euphaeoxantha) wimmeri is very similar to P. ( E.) klugii . As the elytral shape may be sometimes very similar in both these species due to the usual variability (but always shorter in P. ( E.) wimmeri ), and as also their aedeagi are very similar, one other distinguishing character is the shape of the right mandible in males of P. ( E.) wimmeri , which has the second tooth mostly tightly appressed to the terminal tooth and constantly markedly distant from the third tooth ( Figs 317 View FIGURES 313–318 , 319 View FIGURES 319–324 ). For other distinguishing characters see “Differential diagnosis” under P. ( E.) klugii above.

Examined adult specimens are 22.5–26.1 mm long, 8.50–11.6 mm wide; the illustrated type specimens measure: length of the holotype (NHMB) 25.8 mm, width 11.3 mm; paratypes (SDEI) length of male 24.4 mm, width 10.2; length of female 24.3 mm, width 9.70 mm.

Distribution. Known only from Bolivia, hitherto only from the department of Santa Cruz ( Wiesner 2020), but three above-listed specimens from Villa Tunari come from the department of Cochabamba. Adults were taken on rather large sandy beaches of the rivers Yapacani ( Fig. 328 View FIGURES 327–328 ) and Surutú flowing from the mountain range to more open areas; Tetracha ( Neotetracha) fulgida ( Klug, 1834) and T. ( N.) thomsoniana (W. Horn, 1915) shared the same places (O. Šafránek, pers. com.). Pearson et al. (1999a) listed a great number of other records from the department of Santa Cruz, mostly from banks of Rio Surutú and Rio Piray (also spelled “Pirai”), from Yapacani as well as a number of specimens from Rio Ichilo on the border of the departments of Santa Cuz and Cochabamba.