51. Cactopinus rhettbutleri Atkinson, 2016 (Fig. 4C)

Holotype: 1 ♂. México, Oaxaca, Totolapan, 7 km S. camino a Zoquititlán; 24/VIII/2014, 982 msnm, 16.62309 - 96.32612, Polaskia sp. THA-1064; TH. Atkinson, A. Burgos.

Preservation status: Complete, well-preserved. COL. TIP- 04058.

Allotype: 1 ♀. Ídem . COL. TIP-04059.

Preservation status: Complete, well-preserved.

Paratypes: 1 ♂, 1 ♀. México, Puebla, Coxcatlán, 18.32333 -97.25251, 19/I/2012; 1070 m, ex Escontria chiotilla, THA 979, T.H. Atkinson. COL. TIP-04060−61 .

Preservation status: Complete, well-preserved.