Chrysopilus kafkai Cegolin & Santos, 2020

Cegolin, Bianca Melo, Bueno, Gabriel Marangão, Pereira, Gabriel Lopes, Santos, Daubian & Santos, Charles Morphy Dias dos, 2020, Description and molecular characterization of Chrysopilus kafkai sp. nov. (Diptera: Rhagionidae) from Serra da Bodoquena (Mato Grosso do Sul, Brazil), Papéis Avulsos de Zoologia (Pap. Avulsos Zool., S. Paulo) 60, pp. 1-10 : 5-8

publication ID	https://doi.org/ 10.11606/1807-0205/2020.60.42
publication LSID	lsid:zoobank.org:pub:99FB82B2-4D27-4387-B0A0-E3252A77F819
persistent identifier	https://treatment.plazi.org/id/1975B758-FFA9-8C10-FF30-FF67FAAE6371
treatment provided by	Carolina
scientific name	Chrysopilus kafkai Cegolin & Santos
status	sp. nov.

Treatment

Chrysopilus kafkai Cegolin & Santos sp. nov. Figs. 1‑7 View Figure 1 View Figure 2 View Figure3 View Figure 4 View Figure 5 View Figure 6 View Figure 7

Material: Holotype: ♂, BRAZIL, Mato Grosso do Sul, Serra da Bodoquena , 20°41′53.5″S, 56°52′55.7″W, 06-22. GoogleMaps

xii.2011, Lamas, Nihei & eq. col (MZUSP). Paratypes: 1 ♂, Mato Grosso do Sul, Serra da Bodoquena , 20°42′15″S, 56°51′00″W, 09/XII/2011, Lamas, Nihei & eq. col GoogleMaps .; 1 ♀, Mato Grosso do Sul, Serra da Bodoquena , 20°41′49.9″S, 56°52′54.0″W, 22/XII/2011 - 06/I/2012, Lamas, Nihei & eq. col GoogleMaps .; 1 ♀, Mato Grosso do Sul, Serra da Bodoquena, 20°41′49.9″S, 56°52′54.0″W, 06-21/XI/2012, Lamas, Nihei & eq. col. Additional material: 1 ♂, Mato Grosso do Sul, Serra da Bodoquena , 20°41′53.5″S, 56°52′55.7″W, 06-22/ XII/2011, Lamas, Nihei & eq. col GoogleMaps .; 1 ♀, Mato Grosso do Sul, Serra da Bodoquena , 20°42′28″S, 55°51′07″W, 09/ XII/2011, Lamas, Nihei & eq. col GoogleMaps .; 1 ♂, Mato Grosso do Sul, Serra da Bodoquena , 20°41′49.9″S, 56°52′54.0″W, 22/XII/2011, Lamas, Nihei & eq. col GoogleMaps .; 1 ♀, Mato Grosso do Sul, Serra da Bodoquena , 20°41′49.9″S, 56°52′54.0″W, 21/ I/2012 - 05/II/2012, Lamas, Nihei & eq.col GoogleMaps .; 1 ♂, Mato Grosso do Sul, Serra da Bodoquena , 20°41′49.9″S, 56°52′54.0″W, 05-20/II/2012, Lamas, Nihei & eq. col GoogleMaps .; 1 ♂, Mato Grosso do Sul, Serra da Bodoquena , 20°41′55.9″S, 56°52′49.4″W, 21/IX/2012 - 06/XI/2012, Lamas, Nihei & eq. col GoogleMaps .; 1 ♂, Mato Grosso do Sul, Serra da Bodoquena , 20°41′49.9″S, 56°52′54.0″W, 06-21/XII/2012, Lamas, Nihei & eq. col GoogleMaps .

Preservation: Holotype and paratypes dry and well preserved, with a few imperfections; additional material in 70% alcohol, with some missing parts, but complete enough to be identified as the new species.

Diagnosis: Gonostylus crest dark brown,strongly curved distally with thick long setae ( Fig. 4 View Figure 4 ), yellowish brown anteriorly. Another diagnose characteristic is the wing non-hyaline with only the middle of r₃ and r₄ cells lighter than the borders ( Fig. 3 View Figure3 ).

Male ( Figs. 1‑4 View Figure 1 View Figure 2 View Figure3 View Figure 4 ): length: body ca. 6.5 mm, wing ca. 7.3 mm. General color dark brown ( Fig. 1a View Figure 1 ). Head in shades of brown ( Fig. 1b View Figure 1 ). Eyes holoptic, slightly grayish brown with the borders in blackish brown, ommatidium facets round; ocellar tubercle dark brown, ocellus light brown. Gena brown, lighter than the eyes. Bare and strongly curved clypeus. Antenna uniformly light brown with short thin setae, 1.6 times smaller than head; scape flattened, pedicel two times longer than scape, first flagellomere tapering toward apex, clearly narrow- er than pedicel and approximately as wide as scape. Maxillary palpus light brown, distally angled with thick medium-sized setae. Proboscis yellowish brown. Occiput grayish brown, with long-sized setae.

Thorax dark brown ( Fig. 1a View Figure 1 ), wider than long. Meron almost two times wider than long, katepisternum almost as wide as high ( Fig. 2 View Figure 2 ). Coxa dark brown,femur,tibia, and tarsus light yellow ( Fig. 1a View Figure 1 ). Wing membrane brownish along most veins ( Fig. 3 View Figure3 ); pterostigma, approximately six times smaller than the wing length; R₁ and R₂₊₃ running parallel for the most part, only last third of R₂₊₃ converging towards R₁; R₄ barely curved; CuA and CuP joining far from wing margin, CuA+CuP as long as r-m crossvein; discal cell approximately 4.2x longer than wide, bm cell five times longer than wide, br cell six times longer than wide, cua cell six times longer than wide, c cell placed before pterostigma; alula broad. Halter light brown ( Fig. 1a View Figure 1 ).

Abdomen dark brown ( Fig. 1a View Figure 1 ). Gonocoxite dark brown with long setae; gonostylus apex dark brown, protruding curved crest with long setae ( Fig. 4 View Figure 4 ), bottom yellowish brown; gonostylus with a distal concavity ( Fig. 4e View Figure 4 ). Aedeagus long, half the gonocoxite length ( Fig. 4 View Figure 4 ). Ejaculatory apodeme long, nearly as long as aedeagus. Gonocoxal apodeme approximately half of the aedeagus length; parameral apodeme short, do not extending beyond the gonocoxal apodeme; lateral ejaculatory process short. Cercus dark brown with short setae, distancing each other distally ( Fig. 4b View Figure 4 ).

Female ( Figs. 5‑7 View Figure 5 View Figure 6 View Figure 7 ): Same as males, except as follows: length: body 7.8 mm, wing 7.3 mm. Eyes dichoptic.

Cercus dark brown, two-segmented with slightly rounded apex in the distal segment ( Fig. 6 View Figure 6 ), posteroventral cercal lobe two times longer than wide ( Fig. 7a View Figure 7 ). Sternite VIII slightly rounded anteriorly; hypogynial valves with long and thick setae ( Fig. 7a View Figure 7 ); genital fork with a slightly elongated anterior protrusion and distal short apodemes.Three spermathecae oblong ( Fig. 7b View Figure 7 ).

Geographic distribution: Serra da Bodoquena, state of Mato Grosso do Sul, Midwest Brazilian region ( Fig. 8 View Figure 8 ).

Etymology: Based on its general dark color, the species is named after the fiction author Franz Kafka, whose literature mostly deals with the darkness and absurdity of human behavior.

Comments: Chrysopilus kafkai sp. nov. resembles Chysopilus plaumanni Santos & Amorim in the general aspect of the male terminalia. However, C. kafkai sp. nov. has a distinctive crest occupying almost half of the gonostylus, while the crest in C. plaumanni is restricted to the distal region of the gonostylus ( Fig. 9 View Figure 9 ).

Our molecular characterization of 28S rRNA of Chrysopilus kafkai sp. nov. expands the geographical representation of molecular data for the genus, now with sequences from species distributed in three biogeographical regions (Nearctic, Neotropical, and Australian).