Taxonomic revision of Afrotropical Laccophilus Leach, 1815 (Coleoptera, Dytiscidae) Author Bistroem, Olof Author Nilsson, Anders N. Author Bergsten, Johannes text ZooKeys 2015 542 1 379 http://dx.doi.org/10.3897/zookeys.542.5975 journal article http://dx.doi.org/10.3897/zookeys.542.5975 1313-2970-542-1 026407877355425BAB10BF1674510F12 026407877355425BAB10BF1674510F12 Taxon classification Animalia Coleoptera Dytiscidae Laccophilus occidentalis sp. n. Figs 205-206, 375-376, 525, 579 Type locality. Sierra Leone: Makeni. Type material (96 exs.). Holotype: male: "Sierra Leone: Makeni 12°03'W , 8°53'N , 27.XI. 1993 loc. 9 light trap 18-21 / Lund University Sierra Leone Expedition 1993 leg. L. Cederholm-R. Danielsson-R. Hall / Laccophilus laeticulus Regimbart Det. AN Nilsson -94" (MZLU). - Paratypes: Same data as holotype (7 exs. MZLU, 6 exs. MZH; habitus in Fig. 525). - Gambia: "Gambia Bathurst jan. 68. Palm / Laccophilus laeticulus Reg . det. Sven Persson" (1 ex. MZLU). - Senegal: "Niokolo Koba NP, 13°01.13'N , 13°18.48'W 15.7. 2004 leg. Marek Halada" (2 exs. NMPC). - Mali: "Soudan francais Bamako" (1 ex. MNHN). - Guinea: "Republique de Guinea PNHN8 10°28'40"N , 10°26'42"W , Faranah F. Niger, Somorya17-21.1. 1996 leg. M. Mei / Laccophilus laeticulus Reg . det. S. Rocchi 96" (2 exs. CSR); "Seredou 4.4. 1975 lux, Zott" (5 exs. ZMHB, 1 ex. MZH); same data but "5.4. 1975" (1 ex. ZMHB); same data but "4.5. 1975" (4 exs. ZMHB, 1 ex. MZH); same data but "7-8.4. 1975" (9 exs. ZMHB, 3 exs. MZH); "Kindia Villiers 1954" (1 ex. MNHN). - Ivory Coast: "Cote d'Ivoire Comoe NP, N8,5° W3,5° leg. N. Reintjes, det. F. Pederzani / 11.1. 1999 KB8A Kongo River / KR in Koleopt. Rdsch. 74: 45-74 / Laccophilus laeticulus Regimbart , 1895" (2 exs. NMW). - Ghana: "Ghana: Northern Reg. Damongo Game res. 9.04N- 1.48W / 11.11. 1970: no. 440 leg. Endroedy-Younga" (5 exs. TMSA, 2 exs. MZH); "Ghana Kumasi 12.6. 67 S. Endroedy-Younga" (2 exs. MHNG, 1 ex. MZH); "Volta Region, R. Volta at Kpong 28.11. 1993 Andersen, light trap" (1 ex. MZH). - Benin: "Benin, Penesseoulou , pond: forest area Oct. 2003 Leg. G. Georgen / 37 / Laccophilus laeticulus Reg . det. Wewalka 2005" (1 ex. NMW); "Parakou at light 29.9.1988 leg. C. v. Houdt / Laccophilus laeticulus Reg . det. S. Rocchi 2000 " (1 ex. CSR). - Nigeria: "Nigeria NW St. Badeggi rice fields 8-9.8. 1973 R. Linnavuori leg." (2 exs. MZH); "Ibadan, Nigeria ca, Jan.-Juni 1954 H. Stenholt-Clausen / Laccophilus laeticulus Reg . J. Balfour-Browne det. VII. 1961" (2 exs. ZMUC, 1 ex. MZH); "Ibadan at light 27.XI. 1955" (2 exs. BMNH, 1 ex. MZH); "Coll. Mus. Tervuren Nigeria Zaria, a la lumiere 1969 Dr. H. Roberts" (7 exs. MRAC, 2 exs. MZH); "Stream, Enugo-Makurdi rd. 26.4. 1963 J.O-C." (1 ex. AMGS); "R. Kaduna 4.5 mi from Jos 13.4. 1963 JOC" (16 exs. AMGS). - Central African Republic: "Bozo 7. 1981 Degallier" (1 ex. NHMB); same data but "21.5. 1981"(1 ex. NHMB). - Zaire: "Congo Belge PNG Miss. H. De Saeger/II/fd/12, 10.3. 1952, 3180" (1 ex. MNHN). Diagnosis. Very close to Laccophilus laeticulus and Laccophilus transversovittatus . Correct determination requires study of male genitalia. Diagnostic features for separation of the three species is given under diagnosis of Laccophilus laeticulus (p. 258) and Laccophilus transversovittatus (p. 260). Description. Body length 2.8-3.3 mm, width 1.6-1.9 mm. Dorsal, colour pattern distinct, quite uniform (Fig. 525). Head and pronotum: As in Laccophilus laeticulus . Elytra: As in Laccophilus laeticulus but pale basal marking generally somewhat narrower in Laccophilus occidentalis . Pale markings posterior to middle often reduced to small, separate spots (Fig. 525). Ventral aspect: Apical ventrite (Fig. 205) Legs: As in Laccophilus laeticulus . Male genitalia: Penis in apical half broad, narrows only moderately towards apex (Figs 375-376). Female: Pro- and mesotarsus slender. Apical ventrite lacks sharp knob (Fig. 206). Female has similar appearance of stridulatory apparatus as in male. Etymology. The name occidentalis is a Latin adjective meaning "western" . It here refers to the wide range of the new species in western part of Africa, south of Sahara. Distribution. Gambia, Senegal, Mali, Guinea, Sierra Leone, Ivory Coast, Ghana, Benin, Nigeria, Central African Republic, Zaire (Fig. 579). Collecting circumstances. Almost unknown. Sometimes collected at light.