Oecidiophilus Silvestri, 1946

Zilberman, Bruno & Fontes, Luiz Roberto, 2020, New species and morphological notes on the termitophilous genera Fonsechellus Silvestri and Oecidiophilus Silvestri from Brazil (Staphylinidae, Aleocharinae, Corotocini, Termitoceina), Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 60 (21), pp. 1-13 : 11

Oecidiophilus Silvestri, 1946

Oecidiophilus Silvestri, 1946: 331 .

Type species: Oecidiophilus mimellus Silvestri, 1946 , by monotypy (not O. oglobinii , nomen nudum, as originally designated by Silvestri, 1946).

Redescription: Head elongate, about 1.4 times as long as wide, not widest behind the eyes; gula narrow, lateral margins almost parallel; foramen magnum broad, about one third the head width; mandibles symmetrical; maxillary palpi with 4 palpomeres, fourth palpomere almost the length of the third; prementum with palpi with 3 palpomeres, and ligula slightly incised in the middle; antennae with 11 antennomeres, scape as long as antennomeres II and III combined, III‑X slightly longer than wide, progressively and slightly decreasing in length towards apex.

Thorax: Wings present and broken; first metatarsomere as long as second and third combined.

Abdomen highly physogastric and scarcely setose, covered mostly by short and medium bristles; tergite IX without macrosetae; tergite X suboval, with midsized bristles at apex. Aedeagus with phallobase large and bulbous, apex of median lobe with membranous structure with sinuous pattern.

Remarks: The genus Oecidiophilus until now was represented by a single enigmatic species from Argentina, Loreto (Misiones), known only from the holotype and the original description ( Silvestri, 1946). Herein, the second species of the genus is described, representing the first record of Oecidiophilus for Brazil. The wings of the analyzed specimen were broken in a similar way to that found in Fonsechellus species.It is presumed that individuals lose their wings in the same way as Fonsechellus and it would not be impressive if this phenomenon was even more embracing across other related genera in the subtribe Termoiceina .