Mberu periotoi, Silva & Capellari & Oliveira, 2025

Silva, Paulo Cesar, Capellari, Renato S. & Oliveira, Sarah S., 2025, Revision and morphological phylogeny of the Neotropical genus Mberu Capellari & Amorim (Diptera: Dolichopodidae), with description of twelve new species, Zootaxa 5637 (3), pp. 469-514 : 496-498

publication ID	https://doi.org/10.11646/zootaxa.5637.3.3
publication LSID	lsid:zoobank.org:pub:E1718F54-6375-4DF0-8ACF-EF4D87E12381
DOI	https://doi.org/10.5281/zenodo.15562704
persistent identifier	https://treatment.plazi.org/id/03B18E5C-FF84-FFDA-5AAD-4A1BFC61FE43
treatment provided by	Plazi
scientific name	Mberu periotoi
status	sp. nov.

Treatment

Mberu periotoi sp. nov.

( Figs 16 View FIGURE 16 , 17 View FIGURE 17 )

Description. Male. Body length: 2.21–2.28 mm. Wing length: 2.02–2.19 mm long, 0.68–0.72 mm wide (n = 3). Similar to M. amorimi sp. nov. in both general habitus and chaetotaxy, except as noted. Head ( Fig. 16B, C View FIGURE 16 ). Pair of reclinate, slightly divergent, strong oc s, almost 1.5 as long as vt s; pair of proclinate, convergent vt s; postpedicel brown, about 1.2 times longer than basal width; stylus about 3.9 times longer than postpedicel; face with dense silver pruinosity. Thorax ( Fig. 16C View FIGURE 16 ). As in M. amorimi sp. nov. Wing. RMx ratio = 2.6, CuAx ratio = 0.3. Legs. Leg I. It1 smaller than remaining tarsomeres combined. Leg II. Tibia II with major setae at dorsal 1/4 and 1/2, one dorsal, one ventral, and one anterior apical seta; posterior surface of IIt1 with row of 4–5 setae. Relative podomere ratios: I: 6.7/ 7.1/ 3.6/ 2.1/ 1.5/ 1/ 0.9; II: 8/ 8/ 5/ 2.8/ 1.8/ 1/ 1; III: 6.9/ 8.4/ 2.1/ 2.4/ 1.6/ 1/ 1. Abdomen. As in Mberu amorimi sp. nov. Hypopygium ( Fig. 17 View FIGURE 17 ). Epandrium elongate, twice longer than high, dark ( Fig. 17A, B View FIGURE 17 ). MEp digitiform, ventrally swollen, approximately four times less than VSur height, with dorsal face straight, ( Fig. 17C View FIGURE 17 ). DSur and VSur covering internal appendages ( Fig. 17A, B View FIGURE 17 ); VSur ( Fig. 17C View FIGURE 17 ) enlarged, twice higher than DSur, sclerotized at apex, with three apical setae, probably being LEp fused with VSur (see Quevedo et al. 2025); DSur ( Fig. 17D View FIGURE 17 ) elongated and curved, apically rounded, three times wider than height, conspicuously projecting beyond VSur. Hypandrium basally fused to epandrium. Phallus straight, without apical projection ( Fig. 17F View FIGURE 17 ). Postgonite absent. Cercus ( Fig. 17E View FIGURE 17 ) divided in two parts, ventral part curved and stout, with 6–7 spines ventrally and 1 long and flattened anterior seta, dorsal part rounded, covered by fine setae. Female. Body length: 2.28–2.53 mm. Wing length: 2.30–2.46 mm long, 0.74–0.82 mm wide (n = 5). Similar to male, except as noted. Head. Face broader (about as broad as ocellar tubercle). Thorax. Three strong white prepst s. Wing. RMx ratio = 4.3, CuAx ratio = 0.3. Legs. Leg II. Tibia II with major setae at dorsal 1/3 and 2/3, and av at 2/3; IIt1–4 with one av, one ventral and one pv small black seta at apex; posterior surface of IIt1 without row of setae. Relative podomere ratios: I: 6.8/ 7.3/ 3.4/ 2.4/ 1.5/ 1/ 1; II: 8.8/ 8.7/ 5.5/ 3/ 1.8/ 1/ 1; III: 8.5/ 9.4/ 2.6/ 3.4/ 1.9/ 1.3/ 1. Abdomen. Tergites 1–5 covered by short setae. Oviscapt as in M. bodoquena sp. nov.

Type material. HOLOTYPE ♂, “ BRASIL, SP [São Paulo], Luiz Antônio, | E.E. [Ecological Station] Jataí, Cerrado [Savanna] , malaise I | 07.vii.2006, Perioto, N. col.”; “HOLOTYPE | Mberu periotoi | Silva, Capellari & Oliveira [red label]” ( MZUSP) . Holotype in good condition, genitalia not dissected. PARATYPES. Brazil. São Paulo. Same data as holotype (1 ♂, dissected, 2 ♀, one dissected, MZUSP). GoogleMaps Conchas, Juquiratiba , Faz. Boa Vista , 22°59′1.8″S 48°6′8.8″W, Malaise. Pomar, 17–19.i.2022, Capellari leg.” (1 ♂, dissected, 3 ♀, MZUSP) GoogleMaps .

Etymology. Named after Brazilian entomologist Nelson Perioto, who collected the holotype of the species.

Remarks. Mberu periotoi sp. nov. is similar to M. amorimi sp. nov. but can be easily separated by DSur elongated and curved, apically rounded, three times wider than height, conspicuously projecting beyond the VSur ( Fig. 17A, B, D View FIGURE 17 ). In M. amorimi sp. nov., the size of both surstyli are similar ( Fig. 9A, B, D View FIGURE 9 ).

Distribution ( Fig. 24 View FIGURE 24 ). Brazil: state of São Paulo (Cerrado biome).