- Paratrechus (Hygroduvalius) sylvaticus Bolívar y Pieltain, 1941

Holotype: ♂. MEXICO: Morelos, Zempoala, P. N Zempoala, 2800 m, 14/IV/1940. Col. C. Bolívar; maderos húmedos.

Conservation status: Complete, well-preserved.

Allotype: ♀. Ídem.

Conservation status: Complete, well-preserved.

Paratypes: 2 ♀, 3 [unknown sex]. Ídem.

Conservation status: Complete, well-preserved.

Paratype: 1 [unknown sex]. MEXICO: Distrito Federal, Desierto de los Leones. VIII/1 939. Col. C. Bolívar .

Conservation status: Complete, well-preserved.

Additional notes: Current synonym of Paratrechus sylvaticus (Bolívar y Pieltain, 1941).