Hydroptilidae (Trichoptera) of Angola, a new genus, seven new species, and five new records Author Wells, Alice 0000-0001-5581-6056 Australian National Insect Collection, CSIRO, PO Box 1700, Canberra, ACT 2601 Australia. & alice. wells @ csiro. au; https: // orcid. org / 0000 - 0001 - 5581 - 6056 & http: // zoobank. org / urn: lsid: zoobank. org: author: 0 D 7 A 8359 - 1249 - 4 DED- 9 D 5 F-DBF 5 FCD 17876 alice.wells@csiro.au Author De Moor, Ferdinand C. 0000-0003-4624-7191 Department of Freshwater Invertebrates, Albany Museum, Somerset St., Grahamstown, South Africa & Department of Zoology and Entomology, Rhodes University, Grahamstown, South Africa & South African Institute of Aquatic Biodiversity, Grahamstown, 6139, South Africa & National Geographic Okavango Wilderness Project, Wild Bird Trust, 20 Loch Avenue, Parktown 2193 South Africa & f. demoor @ ru. ac. za; https: // orcid. org / 0000 - 0003 - 4624 - 7191 & http: // zoobank. org / urn: lsid: zoobank. org: author: 03 D 33129 - 9858 - 468 E-B 38 F-E 84 F 0 EBE 654 A f.demoor@ru.ac.za text Zootaxa 2020 2020-10-29 4868 4 495 514 journal article 8845 10.11646/zootaxa.4868.4.2 61d6e883-124a-4e2a-9787-1cf1ff9c7ccb 1175-5326 4418036 1476A900-6B49-48B0-84DE-7EC7DEF292A7 Orthotrichia larvae ( Figs 16–18 ) Material examined. ANGOLA : 1 final instar larva, [CAW 758M], Moxico Province , Cuembo River , Site 6— Cuembo campsite bridge, vegetation, -13.5265 , 19.27971 , 02/xi/2016 , I.S. Ferreira ; 1 cased larva, [CAW 798S], Moxico Province , Cuando River , Site 20— Cuando River longbridge at village, vegetation, sand, -13.0923 , 19.35946 , 16/xi/2016 , I.S. Ferreira ; 1 early final instar cased larva, [CAW 803N], Moxico Province , Lungue Bungo River , Site 22— Lungue Bungo River tributary at Samanunga, vegetation, -12.9334 , 18.81691 , 18/xi/2016 , I.S. Ferreira . Remarks. The cases of Orthotrichia spp. larvae are usually described as ‘wheat or caraway seed’ shaped so that the cases of final instar Orthotrichia larvae are readily recognised. Only two cased larvae were collected in this study, which is not surprising, as usually the larvae in this genus are found in swiftly flowing waters, usually well attached to rocks, and possibly also to vegetation, as is likely in the many sandbed rivers in Angola . There are some records of larvae attached to Mollusc cases in lakes Kivu and Edward ( Jacquemart 1957 ).