Revision of the Nearctic Parathalassius Mik (Diptera: Dolichopodidae: Parathalassiinae), with a review of the world fauna Author Cumming, Jeffrey M. text Zootaxa 2017 2017-08-31 4314 1 1 64 journal article 32247 10.11646/zootaxa.4314.1.1 e0c51a8a-3803-4bab-bf2b-5f607902f0d1 1175-5326 858378 6758Dc40-4356-4Adc-9Bd6-456652Ea5162 Parathalassius blasigii Mik ( Figs 5–6 ) Parathalassius blasigii Mik, 1891 : 217 . Schistostoma alterum Becker, 1907 : 119 . Material examined. PORTUGAL : Minho , Braga , Esposende , Apúlia , Parque Natural do Litoral Norte , 41°28′24.0″N 08°46′26.6″W , 11.vii.2011 , ex: sandy beach, Rui Andrade, CNC487196 ( 1♂ , barcoded, CNC ), CNC487197 ( 1♀ , barcode-associated, CNC ) . TUNISIA : La Marsa , 8.v.1913 ( 1♂ , 1♀ , USNM ) . Diagnosis. This medium sized Palaearctic species ( Figs 5–6 ) is characterized by a subtriangular antennal postpedicel, longer lower male ommatrichia, white setae on the lower part of the head, 2 notopleural bristles, pale legs, and entirely hyaline wing in both sexes. Distribution. This western Palaearctic species is known from the Azores , the western Mediterranean region including Spain , the Italian mainland, Sicily and North Africa ( Tunisia ) ( Chvála 1988 , 1989 , 2013 ), and is here newly recorded from the northwestern coast of Portugal . Remarks. The shape and setation of the cerci examined in the male specimen of P . blasigii from Portugal , appears noticeably different from the illustration of the male cerci of this species (specimen from the type locality in Venice, Italy ) depicted in Shamshev (1998) . This may indicate the presence of at least one additional undescribed cryptic species within the current concept of P . blasigii .