The genus Aphaniosoma Becker, 1903 (Diptera: Chyromyidae) in the Eastern Mediterranean and Middle East, with descriptions of new species Author Ebejer, Martin J. text European Journal of Taxonomy 2023 2023-06-08 872 1 161 http://zoobank.org/05098e38-ab11-486e-8f28-8567de6bc19c journal article 53713 10.5852/ejt.2023.872.2131 31ad2cf7-cce8-4202-9a46-d81b0073d561 2118-9773 8018303 05098E38-AB11-486E-8F28-8567DE6BC19C Aphaniosoma sodalis Collin, 1949 Figs 79–81 Fig. 77. Aphaniosoma setigerum Collin, 1949 . A–B . ♂, holotype (NHMUK, B.M. 1935–354, bar code 013435847). A . Habitus, lateral view. B . Posterior segments of abdomen showing large tergite 5 (note: artifact dorsally caused by Lepidoptera scale stuck to tergite 3). C . ♂ (SMNHTAU) from Israel, habitus, lateral view. Material examined Lectotype (here designated) EGYPT • ♂ ; Siwa Oasis ; 29 Apr. 1935 ; J. Omer-Cooper leg., Armstrong College Expedition; NHMUK , B.M. 1935–354 , bar code 013435848 . Paralectotypes 1 ♂ ; Siwa Oasis ; 12 May 1935 ; J. Omer-Cooper leg., Armstrong College Expedition ; NHMUK , B.M. 1935–354 , bar code 013435849 • 5 ♀♀ ; same collection data as for preceeding; bar codes 013435869– 73 . Remarks Although Collin (1949: 140–141) stated that he described the species from 2 males and 8 females , Pont (1995: 151) could not locate one of the females, nor has it been located by the present author for this study. Only one of the males examined for this study can be the species to which Collin gave the name, based on his description and illustration. This is here designated lectotype ( Figs. 79–80 ). The second male ( Figs 79–80 ) ( paralectotype ), upon critical examination of the hypopygium under high magnification, appears to be a different species and to be closest to A. angulitergum sp. nov. , although it is not that species. Further topotypic material is desirable (to establish identity by dissection and for description) so as to avoid probable serious damage to this specimen if an attempt is made to dissect it. Of the 7 females found among the syntype series, 2 are in too poor a state to be recognized as any species and are not considered syntypes here. The rest are labelled as paralectotypes although they could belong equally to A. sodalis or to the second unidentified species. The record of A. sodalis from Yemen ( Ebejer 1996 ) is incorrect. Higher magnification was used to re-check the specimen for this article and to compare it directly with the type – it is not the same species. Chromatic pattern and chaetotaxy are now recognized to be far less reliable than earlier authors supposed. Fig. 78. Aphaniosoma setigerum Collin, 1949 , ♂ (SMNHTAU) from Israel, hypopygium. A . Lateral view. B . Ventral view. Abbreviations: See Material and methods. Fig. 79. Aphaniosoma sodalis Collin, 1949 , ♂, lectotype (NHMUK, B.M. 1935–354, bar code 013435848). A . Habitus, lateral view. B . Head and thorax, dorsal view. Distribution Egypt ( Collin 1949 ).