Review of the genus Rhyparus Westwood, 1845 (Coleoptera: Scarabaeidae: Aphodiinae) in the Solomon Islands with description of two new species Author Minkina, Łukasz os. Polana Szaflarska 4 / 39, 34 - 400 Nowy Targ, Poland. Author Skelley, Paul Florida State Collection of Arthropods, 1911 SW 34 th Street, Gainesville, FL, USA. Author Jákl, Stanislav Geologická 1218 / 2 C, CZ- 152 00 Praha 5, Czechia. Author Král, David Department of Zoology, Faculty of Science, Charles University, Viničná 7, CZ- 128 00, Praha 2, Czechia. Author Li, Xiao-Feng 0009-0009-3982-2734 yansi3241@gmail.com text Zootaxa 2025 2025-01-20 5570 3 563 573 https://doi.org/10.11646/zootaxa.5570.3.7 journal article 10.11646/zootaxa.5570.3.7 1175-5326 14745461 41BC11D8-E0D7-40D6-837E-DF48B4A42CA5 Rhyparus helophoroides Fairmaire, 1893 ( Figs. 1B , 4C ) Rhyparus helophoroides Fairmaire, 1893: 145 . Type locality: “ Bornéo occ.: Sambas ; Java : Simpar et Kemanglen , rés. Tegal ”. Material examined. 220 exx.: Solomon Islands , South Pacific, Guadalcanal Island, Karukiki env., 20–25km SSE of Honiara , 750– 900 m ., 1.–18.xii.2016 , leg. St. Jakl ( ISEA ) ; 58 exx.: Solomon Islands : Guadalcanal Is , Koso vill. Env. , alt. 500–650m , 2016. VII. 1.–18 , St. Jakl leg. ( EUMJ ) ; 3 exx.: Solomon Islands , South Pacific , Guadalcanal Island , Lunga river env., 5–15km S of Barana vill., Honiara reg., 80– 250 m ., 20.xi.–15.xii.2013 , leg. St. Jakl ( ISEA ) [photographed material]; 10 exx.: Solomon Islands , Guadalcanal , Matanikau River , October 1943 , B.D. Valentine ( FSCA ) ; 1 ex. : Solomon Islands , Guadalcanal Tenaru River , I-1945 , G.E. Bohart ( CASC ) ; 1 ex. : Solomon Islands , Guadalcanal & Florida Is. [now Nggela Islands ], I– III–1945 , J.R. Stunz ( CASC ) ; 1 ex. : Solomon Islands , Fauro Island , Toumoa Village , 30 m , 3.iv.1964 , P. Shanahan , light trap ( BPBM ) ; 1ex. : Solomon Islands , New Georgia Group , Gizo Island , 30 m , 13.vii.1964 , J.M. Sedlacek , M.V. light trap ( BPBM ) ; 13 exx.: Solomon Islands , Guadalcanal Island , 9.6 km SE Honiara , Lunga R. (bridge), 2.vi.1960 , C.W.O’Brien , light trap ( BPBM ) ; 7 exx.: Solomon Islands , Guadalcanal Island , 9.6 km SE Honiara , Lunga R. (bridge), 3.vi.1960 , C.W.O’Brien , light trap ( BPBM ) ; 41 exx.: Solomon Islands , Guadalcanal Island , 9.6 km SE Honiara , Lunga R. (bridge), 4.vi.1960 , C.W.O’Brien , light trap ( BPBM ) ; 1 ex. : Solomon Islands , Guadalcanal Island , Kiwi Creek , 18.ix.1944 , H. E. Milliron ( BPBM ) ; 1 ex. : Solomon Islands , Guadalcanal Island , Kukum , 10 m , 19.vi.1958 , J.L.Gressitt , light trap ( BPBM ) ; 1 ex. : Solomon Islands , Guadalcanal Island , Kukum , 10 m , 20.vi.1958 , J.L.Gressitt , light trap ( BPBM ) ; 5 exx.: Solomon Islands , Guadalcanal Island , Lunga River ( Mouth ), 15.v.1944 , H. E. Milliron ( BPBM ) ; 1 ex. : Solomon Islands , Guadalcanal Island , Lunga River ( Mouth ), 16.V.1944 , H. E. Milliron ( BPBM ) ; 1ex. : Solomon Islands , Guadalcanal Island , Lunga River ( Mouth ), 7.vi.1944 , H. E. Milliron ( BPBM ) ; 1ex. : Solomon Islands , Guadalcanal Island , Metanikau River ( Mth. ), 26.v.1944 , H. E. Milliron ( BPBM ) ; 1 ex. : Solomon Islands , Guadalcanal Island , Tambalia , 30 km . W. Honiara , 27.v.1964 , J. Sedlacek ( BPBM ) ; 1ex. : Solomon Islands , Guadalcanal Island , Tambalia , 30 km . W. Honiara , 28.v.1964 , R. Straatman ( BPBM ) ; 2 exx.: Solomon Islands , Guadalcanal Island , Tambalia , 35 km . W. Honiara , 30 m , 20-25.v.1964 , J. & M. Sedlacek ( BPBM ) ; 17 exx.: Solomon Isands , Guadalcanal Is. , Bokopoli , Barana vill. env., 190 m , 13.–16.xii.2018 , leg. J. HorÁk (5 exx. NMPC , 12 exx. JHCP ) ; 3 exx.: Solomon Islands , Kolombangara Island , Pepele , 30m , 6.ii.1964 , P. Shanahan ( BPBM ) ; 1 ex. : Solomon Islands , Kolombangara Island , Pepele , 30m , 10.ii.1964 , P. Shanahan ( BPBM ) ; 1 ex. : Solomon Islands , Kolombangara Island , Pepele , 30m , 15.ii.1964 , P. Shanahan ( BPBM ) ; 6 exx.: Solomon Islands , Malaita Island , Dala , 50m , 6-11.vi.1964 , J. & M. Sedlacek ( BPBM ) ; 1 ex. : Solomon Islands , Malaita Island , Dala , 7.vi.1964 , R. Straatman ( BPBM ) ; 7 exx.: Solomon Islands , Malaita Island , Dala , 50m , 8-14.vi.1964 , P.L. ( BPBM ) ; 1 ex. : Solomon Islands , Malaita Island , Dala , 50m , 9-14.VI.1964 , J. & M. Sedlacek ( BPBM ) ; 1 ex. : Solomon Islands , Malaita Island , Dala , 50m , 15-18.vi.1964 , M. Sedlacek , M.V. light trap ( BPBM ) ; 2 exx.: Solomon Islands , Malaita Island , Dala , 50m , 19.vi.1964 , J. & M. Sedlacek ( BPBM ) ; 1 ex. : Solomon Islands , Malaita Island , Dala , 25.vi.1964 , R. Straatman ( BPBM ) ; 5 exx.: Solomon Islands , Malaita is., ca 6 km NW Waisisi vill. env., 340 m , 5.–1.xii.2018 , J. Horák leg (3 exx. JHCP , 2 exx. NMPC ) ; 1ex. : Solomon Islands , San Cristobal Island , Kira Kira , 1.viii.1960 , C.W.O’Brien , light trap ( BPBM ) ; 1 ex. : Solomon Islands , San Cristobal Island , Napagiwae , 19.viii.1960 , C.W.O’Brien , light trap ( BPBM ) ; 1 ex. : Solomon Islands , San Cristobal Island , Wairaha River , 100m , 9-15.v.1964 , J. Sedlacek , pressure lamp ( BPBM ) ; 8 exx.: Solomon Islands , Vella Lavella Island , Ulo Crater , 10m , xii.1963 , at kerosene light (6 exx. BPBM , 2 exx. FSCA ) ; 4 exx.: Solomon Islands , Vella Lavella Island , Ulo Crater , 60m , 21.xii.1963 , P.Shanahan , light trap ( BPBM ) ; 4 exx.: Solomon Islands , Guadalcanal / Is. Marau area , Puatanarau vill. env., / 9˚45’44’’S 160˚46’44’’E, 09.v.2023 / 20–40 m , mangroves & Pandanus / forest, leg. D. Telnov / BMNH{E}2023-95 ( NHMUK ) . Comments. Rhyparus helophoroides is a relatively variable species with four presently recognized synonyms. It is widely distributed, being known from Malaysia , Indonesia , Japan , Korea , Taiwan , Philippines , and New Guinea to Australia , New Caledonia and Vanuatu ( Stebnicka 1998 ; Ochi 2001 ; Théry & Bordat 2012 ; Mencl et al. 2013 ; Choi & Lim 2022 ; Minkina & JÁkl 2024 ). These are the first published records for the Solomon Islands which include seven different islands: Fauro, Gizo, Guadalcanal , Kolombangara, Malaita , San Cristobal, and Vella Lavella.