Metrotyphlus Coiffait, 1959

Metrotyphlus Coiffait, 1959 View in CoL

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

Type species: Megatyphlus hervei Coiffait, 1957 View in CoL . Original designation.

Metrotyphlus Coiffait View in CoL : 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 View in CoL . Type species: Metrotyphlus istriensis Coiffait, 1972 View in CoL . 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.