Taxonomic revision of the Neotropical genus Caenopangonia Kröber, 1930 (Diptera: Tabanidae) Author Krolow, Tiago Kütter Author Henriques, Augusto Loureiro Author González, Christian R. text Zootaxa 2016 4154 5 541 558 journal article 10.11646/zootaxa.4154.5.3 7e7eb664-d639-422d-aa0c-ca9e5cf5d775 1175-5326 263601 6F84BE3C-DA8A-4A0C-B481-9F87A097DCF2 Caenopangonia coscaroni n. sp. Krolow, Henriques & González ( Figures 8 A–G, 9A–F) Type locality. Chile , Región de la Araucanía , Malleco, Curacautín, Termas de Tolhuaca. Diagnosis. Body grayish brown covered with golden pilosity and a very long wing. Abdomen slender, dark brown with golden pilosity. Description, holotype Ƌ. Body sized ( 11.9 mm ) ( Fig. 8 A–B), wings (12,1 mm) ( Fig. 8 E–F). Head . frons, subcallus, parafacial, face, gena and occiput predominantly dark grayish with golden pilosity ( Fig. 8 C–D); frons with parallel sides ( Fig. 8 C); face short, not exceeding the insertion of antenna ( Fig. 8 D); beard golden ( Fig. 8 D); Antenna black with golden hairs; flagellum with eight flagellomeres, first flagellomere subequal (longer than high); palpus black with golden hairs, first segment shorter than second (almost subequal), apex of second enlarged (clavate); proboscis dark brown and slender, 2.5x longer than height of head, theca covered with short setae black and golden, labella brown, very slender without any enlargement. Thorax . scutum and pleuron dark grayish with golden pilosity ( Fig. 8 A–D); legs bicolored, coxae, trochanters and proximal 2/3 of fore and hind femora dark grayish blending with color of pleuron, with golden pilosity (right fore leg broken; midlegs lost); distal third of hind femora, tibiae and tarsi yellowish with golden pilosity, except tarsi covered dorsally with dark pilosity; wing infuscated with indistinct clouds on cross-veins; cell r5 closed with short petiole, long appendix on R4 vein ( Fig. 8 E–F); calypters with golden hairs; right wing with incomplete M3. Abdomen . slender, dark brown with golden pilosity, most prominent a mid-row of golden triangles and lateral incisures ( Fig. 8 A); sternites yellowish to brown with golden pilosity. Terminalia . hypandrium + gonocoxite slightly enlarged (almost subequal, wider than long) ( Fig. 9 A–B); hypandrium + gonocoxite with internal margins semicircular ( Fig. 9 B); gonocoxite without lateral projections; gonostylus apex truncate with two small pointed lobes; ejaculatory apodeme enlarged anteriorly keellike ( Fig. 9 C–D); parameral sheath subconical, enlarged anteriorly ( Fig. 9 A–B); epandrium with anterior lateral margins slender, pointed and slightly curved ( Fig. 9 E–F); cercus slender approximately 1/3 length of epandrium. Female. Unknown. Distribution. Chile ( Región de la Araucanía , Malleco province). Type material : Holotype Ƌ. “ CHILE , Araucanía Region , Malleco, Curacautín, Termas Tolhuaca , 15– 20.i.1959 , L.E. Peña ( CAS )”. Etymology. Patronym for Dr. Sixto Coscarón, Universidad Nacional de La Plata ( Argentina ), friend and Neotropical specialist in the family Tabanidae . Comments. C. coscaroni n. sp. is easily distinguished from other species of Caenopangonia by their conspicuous golden pilosity. Except to C . hirtipalpis which is very close, but the following characters allow differentiation: the color of body; antenna black with golden hairs; palpus black with golden hairs, with apex of second segment clavate; apex of gonostylus truncate with two small pointed lobes; anterior margins of epandrium pointed and slightly curved.