Mberu murtiniensis, 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 : 493-496

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.15562698
persistent identifier	https://treatment.plazi.org/id/03B18E5C-FF87-FFDC-5AAD-4B37FC7CFF4F
treatment provided by	Plazi
scientific name	Mberu murtiniensis
status	sp. nov.

Treatment

Mberu murtiniensis sp. nov.

( Figs 14 View FIGURE 14 , 15 View FIGURE 15 )

Description. Male. Body length: 1.57 mm. Wing length: 1.70 mm long, 0.52 mm wide (n = 1). Similar to M. amorimi sp. nov. in both general habitus and chaetotaxy, except as noted. Head ( Fig. 14B, C View FIGURE 14 ). Eyes touching on face; region of face anterior to antenna brown, lower surface of face and clypeus with slight silver pruinosity. Postpedicel dark yellow, triangular, pointed and pubescent; about 1.6 times longer than basal width; stylus about 2.5 times longer than postpedicel. Thorax ( Fig. 14C View FIGURE 14 ). Brown, except for black spot below wing. 4–5 dc s, increasing in size posteriorly, posteriormost three conspicuously longer than anteriormost; one brown pprn s. Wing. R 1 ending near middle of wing; RMx ratio = 2.3, CuAx ratio = 0.2. Legs. Completely yellow, including coxae II and III. Leg I. Femur I bare of major setae; dorsal surface of tarsus I covered by white setae. Leg II. Femur II with row of small ventral setae, without major setae; without ventral excavation; tibia II without major setae at dorsal 1/2 and 3/4, but with one av, one ventral, one pv and one dorsal small black seta at apex. Leg III. Femur III without conspicuous row of dorsal setae, av row with 5–6 white setae; tibia III with one av and one ad white seta at apex; IIIt1 with row of ventral setae, with ventral excavation at base. Relative podomere ratios: I: 7.3/ 6/ 3.9/ 2.4/ 1.5/ 1/ 1; II: 7.6/ 7.3/ 4.5/ 2.6/ 1.7/ 1/ 1; III: 7/ 7.9/ 2.6/ 3.1/ 1.7/?/?. Abdomen. As in M. amorimi sp. nov. Hypopygium ( Fig. 15 View FIGURE 15 ). Epandrium elongate, twice longer than high, dark. MEp narrow, branched, without setae at apex ( Fig. 15C, G View FIGURE 15 ). DSur and VSur covering internal appendages ( Fig. 15A, B View FIGURE 15 ); VSur ( Fig. 15C View FIGURE 15 ) enlarged, twice higher than DSur, with one internal seta at apex, probably being LEp fused with VSur (see Quevedo et al. 2025); DSur ( Fig. 15D View FIGURE 15 ) with proximal and distal widths subequal, dorsal margin slightly concave, twice wider than height, with ventral projection near apex. Hypandrium basally fused to epandrium. Phallus (lost during dissection) straight, without apical projection. Cercus ( Fig. 15F View FIGURE 15 ) divided in two parts, ventral part curved and stout, with 3–4 spines ventrally, dorsal part rounded and covered by fine setae, with one short seta apically. Female. Unknown.

Etymology. Toponymic, referring to the type-locality.

Remarks. Mberu murtiniensis sp. nov. is similar to M. takwajasu sp. nov., and both share the eyes touching on face ( Figs 14B View FIGURE 14 , 20B View FIGURE 20 ) and MEp branched ( Figs 14G View FIGURE 14 , 21H View FIGURE 21 ). Mberu murtiniensis sp. nov. is distinguished by its reduced body length (about 1.60 mm), postpedicel about 1.6 times longer than its basal width ( Fig. 14C View FIGURE 14 ), DSur slight concave dorsally ( Fig. 15D View FIGURE 15 ), and hypopygium not elongated, reaching forward abdominal segment 4 ( Fig. 15A View FIGURE 15 ). In M. takwajasu sp. nov., the body length is longer than 2 mm, postpedicel about 2.3 times longer than its basal width ( Fig. 20C View FIGURE 20 ), DSur subtriangular ( Fig. 21D View FIGURE 21 ) and hypopygium elongated, reaching abdominal segment 2 ( Fig. 21A View FIGURE 21 ).

Distribution ( Fig. 24 View FIGURE 24 ). Brazil: state of Mato Grosso do Sul (Chaco biome).

Comments. Mberu murtiniensis sp. nov. is one of the morphospecies collected in Mato Grosso do Sul ( Brazil) during SISBIOTA-Diptera Brazilian Network (see Lamas et al. 2023).