Biospeleology of the Piemonte
(North-western Italy)

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Arthropoda, Insecta, Orthoptera

 

Insecta, Orthoptera, Gryllidae, Petaloptila andreinii Capra, 1937 - Eutroglophile cricket less frequent than Dolichopoda ligustica, that share the same habitat and probably the same food regime of these cave grasshoppers. In Petaloptila, like in Dolichopoda, the antennas are lengthened in order to live in the dark and the eyes are consequently reduced. It has ditch habits, like the epigean crickets and digs little lairs in the clayey walls of certain caves, generally more than a metre over the floor, opened on little natural terraces. In 1992 the author found a new station of cave crickets (probably belonging to the genus Gryllomorpha, similar to Petaloptila) in the Acqui Terme zone and in 1999 in the Braidese. Moreover the author found Petaloptila andreinii picking up two specimens in the Bear Cave of Ponte di Nava(one of these in november 2000, also photographically documented). In January 2001 the author found a specimen of this cricket in the Bossea Cave, for the first time in this cavity, after a century of biospeleological search. (Real size of the body: 12-15 mm).

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