Metrotyphlus Coiffait, 1959

Hlaváč, Peter, Janák, Jiří & Baňař, Petr, 2025, Endogean and cavernicolous Coleoptera of the Balkans. XXVIII. Synopsis of the subfamily Leptotyphlinae Fauvel, 1874 (Coleoptera, Staphylinidae) of the Balkan Peninsula, with the description of three new species from Serbia and Montenegro, Zootaxa 5594 (1), pp. 61-97 : 88-89

Metrotyphlus Coiffait, 1959

Metrotyphlus as a subgenus of Megatyphlus Coiffait, 1959: 328 .

Type species: Megatyphlus hervei Coiffait, 1957 . Original designation.

Metrotyphlus Coiffait : Coiffait, 1972: 609 (redescription, key to subgenera and species); Pace, 1996: 286 (redescription, key to subgenera and species of Italy).

sbg. Agnotyphlus Coiffait, 1972: 613 . Type species: Metrotyphlus istriensis Coiffait, 1972 . Original designation.

sbg. Agnatotyphlus : Struyve, 2022: 13 (lapsus calami).

Diagnosis. Gular sutures confluent in anterior third of length of head capsule, from confluent point prolonged ahead by two short, divergent sutures; labrum dentate; antennae with 11 antennomeres, 5 slightly larger than 4 and 6, antennal club composed from 3 antennomeres; terminal antennomeres lacking sensorial appendages (phaneres); all tarsi with 2 tarsomeres. Genital armature of female distinct or indistinct.

Remarks. Metrotyphlus , together with Apotyphlus and Venezillotyphlus have tarsal formula 2-2-2. The genus has 2 subgenera differentiated by the structure of aedeagus and female genital armature. All balkanic species belong to the subgenus Agnotyphlus Coiffait, 1972 . The nominal subgenus includes four species in France, Italy and Switzerland.