New species of the genus Chimarra Stephens from Africa (Trichoptera, Philopotamidae) and characterization of the African groups and subgroups of the genus Author Blahnik, Roger Department of Entomology, University of Minnesota, 1980 Folwell Ave., 219 Hodson Hall, St. Paul, Minnesota, 55108, USA Author Andersen, Trond https://orcid.org/0000-0003-2201-1870 Department of Natural History, University Museum of Bergen, University of Bergen, PO Box 7800, NO- 5020 Bergen, Norway trond.andersen@uib.no text ZooKeys 2022 2022-07-11 1111 43 198 http://dx.doi.org/10.3897/zookeys.1111.77586 journal article http://dx.doi.org/10.3897/zookeys.1111.77586 1313-2970-1111-43 3FAAEA839E8141A99B868576F8A1F33A 6E23DAFA45395554A61E23AD4B06AD68 Chimarra intexta Mosely, 1931 Fig. 29A-F Chimarrha intexta Mosely, 1931: 546-547, figs 6-9. Chimarra intexta Mosely: Kimmins 1958 : 359, 361, fig. 2 (distribution: Sierra Leone); Fischer 1961 : 60; Gibon 1985 : 25 (distribution: Ivory Coast); Gibon 2015 : 335, 346 (distribution [table, map]: Sierra Leone, Ivory Coast, Guinea). Material examined. Ghana - Central Reg. ● 1♂ ; Kakum Forest Reserve ; 5°21'N , 1°22'W ; 8 Nov. 1994 ; T Andersen leg.; light trap ; ZMBN ● 1♀ ; same collection data as for preceding; UMSP. - Greater Accra Reg. ● 1♂ ; Legon, Botanical Garden; 5°51'55"N , 0°11'15"W ; 19 Nov. 1994 ; T Andersen leg.; light trap ; ZMBN. - Western Reg. ● 1♂ ; Ankasa Game Production Reserve ; 5°15'N , 2°37'W ; 31 Mar. 1993 ; J Kjaerandsen leg.; light trap ; UMSP ● 1♂ 2♀♀ ; same collection data as for preceding except 5 Dec. 1993 ; T Andersen & J Kjaerandsen leg.; ZMBN . Figure 29. Chimarra intexta Mosely, ♂ genitalia A lateral B dorsal, segments IX and X C inferior appendage, ventral D inferior appendage, dorsal E inferior appendage, caudal F phallus, lateral. Diagnosis. Chimarra intexta is most readily diagnosed from other species of the subgroup by the shape and form of the lateral lobes of tergum X, which are short, weakly sclerotized, and have the out-turned lateral apices only weakly angulate, and also by the general form of the inferior appendages, which have the dorsal process strongly mesally curved, elongate, and acute apically, and also have a small tooth or cusp on the ventromesal surface, visible in lateral view. Distribution. Ghana, Guinea, Ivory Coast, Sierra-Leone.