Caenopangonia coscaroni, Krolow, Tiago Kütter, Henriques, Augusto Loureiro & González, Christian R., 2016

Krolow, Tiago Kütter, Henriques, Augusto Loureiro & González, Christian R., 2016, Taxonomic revision of the Neotropical genus Caenopangonia Kröber, 1930 (Diptera: Tabanidae), Zootaxa 4154 (5), pp. 541-558 : 550-551

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.

Figures

FIGURE 8. Caenopangonia coscaroni n. sp. Krolow, Henriques & González Ƌ (A – G). A: habitus dorsal view; B: habitus lateral view; C: head frontal view; D: head lateral view. E – F: wing dorsal view; G: labels.

FIGURE 9. Caenopangonia coscaroni n. sp. Krolow, Henriques & González Ƌ (A – F). A – D: hypandrium, gonostylus, gonocoxite and aedeagus, respectively in dorsal, ventral, lateral and anterior views; E – F: epandrium, cerci and hypoproct, respectively in dorsal and ventral views.