Centistes itamontiensis Almeida & Penteado-Dias, 2025

Centistes itamontiensis Almeida & Penteado-Dias sp. nov.

( Figs. 15A–E View FIGURE 15 , 25D View FIGURE 25 )

Diagnosis: Vein (RS+M)a absent; pit on mesoscutum absent; notauli absent; median mesonotal lobe setose anteriorly and glabrous posteriorly; dorsal areola of propodeum absent; hypopygium rounded. ovipositor sheath length 2.6–3.4 × its width; malar space 1.2–1.4 × basal width of mandible; and face dark brown.

Comments: Centistes itamontiensis is similar to C. janzeni and C. hexagonalis in that all three share the vein (RS+M)a being absent, notauli and pit on mesoscutum being absent, and a similar hypopygium and ovipositor sheath. C. itamontiensis can be identified by the combination of the dorsal areola of propodeum being absent and the malar space 1.20–1.40 × basal width of mandible.

Description. Female Body length: 2.38 (2.38–2.80) mm; mesosoma length 1.06 (1.06–1.15) mm. Head ( Fig. 15B–C View FIGURE 15 ): Antenna with 24 (24–25) flagellomeres; occipital carina complete; scape cylindrical; face setose and punctate, its minimum width 1.8 (1.6–1.8) × clypeus width, face height 0.6 (0.6–0.8) × its maximum width; clypeus setose and punctate, its height 0.6 (0.5–0.6) × clypeus width; gena setose and puncticulate; frons smooth and polished; vertex smooth with just a few setae; basal width of mandible 0.5 (0.5–0.6) × its length; malar space 0.3 (0.3–0.4) × eye height; malar space 1.3 (1.2–1.4) × basal width of mandible; eye height 1.7 (1.5–1.7) × its length; ocell-ocular distance 1.6 (1.4–1.6) × ocellar diameter; temple length 1.2 (1.0–1.2) × eye length in dorsal view. Mesosoma ( Figs. 15C–D View FIGURE 15 ): Pronotum in lateral view slightly rugulose with a strong transversal carina anteriorly, mostly glabrous, with just a few setae on borders; transverse sulcus of pronotum absent; mesonotal lobes smooth and mostly glabrous except median lobe setose anteriorly; pit on mesoscutum absent; notauli absent; mesoscutum width 1.0 (1.0–1.1) × its length; scutellar sulcus with a transverse carina (or scrobiculate); scutellum sparsely setose; posterior scutellar depression scrobiculate; mesopleuron smooth and mostly glabrous, with sparse setae on its borders; precoxal sulcus rugose (and often short); metapleuron carinate-rugose with dorsomedial area smooth; projection of metapleuron absent; propodeum with medial longitudinal carina incomplete, lateral longitudinal carinae and dorsal areola absent, ventral areola oblong (or pentagonal with two upper depressions), dorsal transverse carina complete; propodeum with dorsal sculpture rugulose, posterior sculpture rugose and sparsely setose. Legs ( Fig. 15A View FIGURE 15 ): Tarsal claw simple; hind coxa rugulose and setose. Wings ( Fig. 25D View FIGURE 25 ): Vein (RS+M)a absent; stigma length 1.1 (0.8–1.1) × vein R1 length; vein r length 0.1 (0.1–0.2) × stigma length; vein CUa 0.2 (0.2–0.3) × vein CUb. Metasoma ( Figs. 15D–E View FIGURE 15 ): T1 costate, with incomplete medial and lateral carinae (sometimes carinae very weak, almost absent), its length 1.5 (1.5–1.9) × ovipositor sheath length; ovipositor sheath lanceolate, without a thin plate on its border; sheath length 3.2 (2.6–3.4) × its width; hypopygium rounded, sparsely setose. Coloration ( Fig. 15A View FIGURE 15 ): body dark brown with clypeus ventrally and antenna brown, legs, propleura and ventral half of pronotum yellow (hind tarsus and apex of tibia brown in some specimens).

Examined Material: Holotype female: Itamonte, MG, Brazil, PARNA de Itatiaia , S 22° 21’ 50,6” W 44° 44’ 38.4”, Armadilha Malaise 04, 2176m, 22.xii.2011, R.F. Monteiro col., DCBU100907 View Materials . GoogleMaps

Paratypes: 6 females: DCBU100906 View Materials , DCBU100915 View Materials , DCBU100916 View Materials , DCBU100917 View Materials , same data as holotype; GoogleMaps DCBU274623 View Materials , DCBU274626 View Materials Itamonte, MG, Brazil, Serra da Mantiqueira (RPPN-APA-UCF), S 22° 22’ 25” W 44° 48’ 41”, Malaise 9, 2149 m, 10.xii.2015, A.S. Soares & L.A.M. Soares cols GoogleMaps .

Etymology: The specific epithet of this species is a reference to its type locality, the city of Itamonte.