Neotrachyostus Browne, 1962

Chester, Ricardo, 2017, Mixed mode crack propagation: Numerical and Experimental Study, The Coleopterists Bulletin 71 (1), pp. 99-115 : 112

Genus Neotrachyostus Browne, 1962

* Neotrachyostus distinctus ( Chapuis, 1865) Notes. Previously recorded only from Brazil and Bolivia.

* Neotrachyostus digitalis ( Chapuis, 1865)

Notes. Known only from four syntypes ( IRSNB) and one additional specimen ( NHMW), all males, all from Brazil. In addition to the male found in a FIT ( Table 2), I have seen identifiable photographs of two males collected in Peru: Madre de Dios, [Tambopata] Los Amigos Biological Station , −12.4025 °,

−70.1111°, 270 m, Smith, Hulcr coll., sample Peru 33a, 15 cm dia branch ( MSUC); Junín, 15 km NW from Satipo, Río Venado village environs , 1,300 m, window trap, −11.2811°, −74.7686°, 3.X.2015, A. Petrov ( AVPC) .

** Neotrachyostus quadrilobus (Blandford, 1896) Notes. A distinctive species, previously known from only Costa Rica. The specimens from Peru are the first South American records. One male, Madre de Dios, Los Amigos Biological Station , S12°24′9″ W70°6′40″, 270 m, Smith, Hulcr coll., sample Peru 33a, 15 cm diameter cm dia branch, 3–9 May 2008 ( MSUC) . One male, Cuzco, Paucartambo, Santa Isabel , Cosnipata Valley Rain Forest , 1,684 m, 11. XI.1951, F. Woytkowski ( TAMU) . One male, Huanuco, Cordillera Azul , 39 km NE Tingo Maria, 1,600 m, site 673, 11–14.I.1983, montane rainforest, A. Newton and M. Thayer ( FMNH) .