Centistes truncatus Román & Sarmiento, 2025

Centistes truncatus Román & Sarmiento sp. nov.

( Figs. 22A–G View FIGURE 22 , 24A View FIGURE 24 )

Diagnosis: This species differs from the others by the truncated propodeum and the ventral part of tarsi I to IV of anterior and middle legs with brush-like pubescence. Also, by the combination of characters: propodeum completely costal, without areola, and metapleura with an anterobasal projection.

Comments: Centistes truncatus is differentiated from other species of the genus by its truncated propodeum, although it shares the partial medial development of the notaulus with C. epicaeri , from which it differs widely in other characters.

Description. Female. Body length: mesosoma length 1.67 (1.67–1.77) mm. Head ( Fig. 22B–C View FIGURE 22 ): antenna with 28 flagellomeres; face setose and smooth, minimum face width 1.2 × clypeus width; face length 0.7 × maximum face width; clypeus setose and smooth, clypeus length 0.3 × its width; gena setose and smooth; frons glabrous medially and smooth; vertex setose and smooth; mandibles when closed overlapping for 0.3 × mandibles length, mandible width basally 0.5 (0.4–0.5) × mandibles length; malar space length 0.3 × eye height in lateral view, and 1.3 (1.1–1.3) × mandible width basally; eye height in lateral view 1.6 × eye length in dorsal view; lateral ocellus separated from compound eye 2.2 (2.1–2.2) × ocellus diameter; temple length 1.2 (1.2–1.9) × eye length in dorsal view. Mesosoma ( Figs. 22D, G View FIGURE 22 ): pronotum sparsely setose, without transverse dorsal sulcus; pronotum in lateral view smooth, without carinae; median and lateral mesonotal lobes setose anteriorly, smooth; pit on the mesoscutum absent; notauli only medially impressed; mesoscutum width 1.1 (1.0–1.1) × its length; scutellar sulcus with transverse carina; scutellum glabrous, smooth; posterior scutellar depression scrobiculate; mesopleuron setose with a glabrous area medially, smooth; precoxal sulcus present, scrobiculate; metapleuron setose, metapleuron upper and lower part costate, supramesocoxal projection present; propodeum setose, truncated, costate, areolae absent, dorsal longitudinal carinae absent, transverse dorsal carina incomplete. Legs ( Fig. 22A View FIGURE 22 ): tarsus I to IV of fore legs with brush-like pubescence; claws basal lobe absent. Wings ( Fig. 24A View FIGURE 24 ): vein (RS+M) a present, complete, stigma length 0.7 (0.7–0.6) × marginal cell length and equal to vein R1 length, vein r length 0.1 × stigma length, vein 1CUa length 0.5 × vein 1CUb length. Metasoma ( Figs. 22E–F View FIGURE 22 ): first tergite lineate, without longitudinal carinae, smooth area absent, first tergite length 1.2 (1.2–1.6) × ovipositor sheath length; hypopygium sparsely setose; ovipositor sheath sparsely setose, short, oval, sheath tip round, thin plate on the edge absent, ovipositor sheath length 2.0 × its width. Coloration ( Fig. 22A View FIGURE 22 ): head black except mandible yellow with brown tips; mesosoma dorsally black, pleural and ventrally dark brown; coxa dark brown, femora yellow, tibia of leg I yellow, leg II mostly yellow except apex dark brown, leg III dark brown with a yellow base, tarsus dark brown; tegula dark brown, wings hyaline, veins and stigma brown; metasoma dark brown.

Male: Unknown.

Examined Material: Holotype female: COLOMBIA, Norte de Santander, Cucutilla, Vereda Carrizal sector Sisavita , Quebrada Grande , N 7°26’20” W 72°50’27”, 2380-2520 m, Bosque Andino, Intervención de vuelo, 31-iii-2002, E. González & A. Pulido leg. (Deposited in IaVH. Code: IAvH-E-185301 ). GoogleMaps

Paratype: One female, COLOMBIA, Norte de Santander, Cucutilla, Vereda Carrizal sector Sisavita , Quebrada Grande , N 7°26’20” W 72°50’27”, 2380-2520 m, Bosque Andino, Intervención de vuelo, 31-iii-2002, E. González & A. Pulido leg. (Deposited in IaVH. Code: IAvH-E-185304 ) GoogleMaps .

Etymology: The Latin word truncatus , meaning truncated or short, refers to the abbreviated form of the basal part of the propodeum.