Thinophilus calopus Loew, 1852: 659 Thinophilus annulitarsis Parent, 1936: 323 A review of the Afrotropical Thinophilus Wahlberg, 1844 (Diptera: Dolichopodidae), with the descriptions of ten new species Grichanov, Igor Ya. European Journal of Taxonomy 2023 2023-07-03 878 1 52 56H7Y Loew, 1852 Loew 1852 [595,993,581,608] Insecta Dolichopodidae Thinophilus Animalia Diptera 9 10 Arthropoda species calopus   Fig. 2      Thinophilus calopus Loew, 1852: 659; 1862: 18.   Typelocality: Mozambique, Inhambane.      Thinophilus annulitarsis Parent, 1936: 323.   Typelocality: Tanzania, Dar Es Salam,  syn. nov.    Material examined    Holotype TANZANIA• ♀; “ Musée du Congo; Dar Es Salam;  Apr. 1931; sur plage saltonneuse, à fond de lame; Dr M. Bequartleg.; R. Det. O 3092;  Thinophilus annulitarsis n. sp.Type ♀ O. Parent”; RMCA.  Other material  TANZANIA• 1 ♂; Unguja[= Zanzibar] Is., Michamvibeach;  30 Dec.–2 Jan. 2021; M. Grichanovand O. Grichanovaleg.; ZIN•  1 ♂, 1 ♀; Mtwaraenv.; 7.40° S, 36.99° E;  21–22 Dec. 2015; mangrove; N. Vikhrevleg.; ZMUM.    Notes Types of  Thinophilus calopuswere collected from a sea coast; later the species was once reported from the National Park Albert (= Virunga), DR Congo, at a height about 1000 mabove sea level, by Vanschuytbroeck (1951), far from the sea coast. RMCA collection contains three femalesidentified by Vanschuytbroeck as  T. calopus: two of them belong to the genus  Tachytrechusand one specimento an indeterminable species of  Thinophilus. I think the species must be excluded from the fauna of the Democratic Republic of the Congo.   Thinophilus annulitarsiswas described from a female collected on a beach at Dar Es Salam. It has never been recorded again.A male examined from Zanzibar’s beach, close to the type locality of  T. annulitarsis, is identical to the female holotype(examined) and original species description ( Parent 1936) and to the detailed description of  T. calopusby Loew (1862). One more male of this species was found at the site Mtwara, close to the Tanzania-Mozambique border. Therefore, I consider the two names as synonyms.    Distribution  Mozambique, * Tanzania. 4145165362 1931-04 RMCA Dr M. Bequart Tanzania Musee du Congo 9 10 1 1 Dar es Salaam holotype 4145165370 2021-01-02 2021-12-30 2021-01-02 ZIN M. Grichanov & O. Grichanova Tanzania Michamvi Unguja 9 10 1 1 Kaskazini Unguja 4145165333 2015-12-21 2015-12-22 2015-12-21 ZMUM N. Vikhrev Tanzania -7.4 Mtwara 781 36.99 9 10 2 1 1 Mtwara