Centistes hemicirculus Román & Sarmiento, 2025

Centistes hemicirculus Román & Sarmiento sp. nov.

( Figs. 12A–G View FIGURE 12 , 24C View FIGURE 24 )

Diagnosis: This species differs from others by the semicircular propodeal areola. Also, by the combination of the following characters: pit on the mesoscutum absent, notauli and precoxal sulcus present, propodeum dorsal and posteriorly rugulose, vein (RS+M)a absent, ovipositor sheaths short and lanceolate.

Comments: Centistes hemicirculus is similar to C. janzeni by sharing the notauli and pit of the mesoscutum being absent and the shape of the ovipositor sheaths. However, Centistes hemicirculus differs by the absence of the precoxal sulcus and the shape of the propodeal areola.

Description. Female. Body length: mesosoma length 1.63 (1.29–1.64) mm. Head ( Figs. 12B–C View FIGURE 12 ): antenna with 27–28 flagellomeres; face setose and smooth, minimum face width 1.3 (1.4) × clypeus width, face length 0.7 (0.6) × maximum face width; clypeus setose and smooth, clypeus length 0.5 (0.4) × its width; gena sparsely setose and smooth; frons glabrous medially and smooth, vertex sparsely setose and smooth, mandibles when closed overlapping 0.5 (0.2–0.6) × mandibles length, mandible width basally 0.4 (0.5) × mandibles length; malar space length 0.3 (0.2–0.4) × eye height in lateral view, and 1.2 (0.8–1.5) × mandible width basally, eye height in lateral view 1.5 (1.4–1.5) × eye length in dorsal view; lateral ocellus separated from compound eye 1.7 (1.1–1.7) × ocellus diameter; temple length 0.8 (0.8–1.1) × eye length in dorsal view. Mesosoma ( Figs. 12D, 12G View FIGURE 12 ): pronotum sparsely setose, with transverse dorsal sulcus, pronotum in lateral view sparsely setose, without carinae; median and lateral mesonotal lobes sparsely setose anteriorly; pit on the mesoscutum absent; notauli absent; mesoscutum width equal to its length; scutellar sulcus with transverse carina; scutellum sparsely setose, smooth; posterior scutellar depression scrobiculate; precoxal sulcus absent; metapleuron sparsely setose, metapleuron upper part scrobiculate and lower part rugulose, supramesocoxal projection absent; propodeum sparsely setose, not truncated, rugulose, dorsal areolae present, incomplete medial longitudinal carina in dorsal view, lateral longitudinal carinae in dorsal view absent, transverse dorsal carina absent; propodeal areolae present, semicircular. Legs ( Fig. 12A View FIGURE 12 ): tarsus I to IV of fore legs without brush-like pubescence, claws basal lobe absent. Wings ( Fig. 24C View FIGURE 24 ): vein (RS+M)a absent, stigma length 0.7 × marginal cell length, and 0.7 (0.9) vein R1 length, vein r length 0.1 (0.1–0.2) × stigma length, vein 1CUa length 0.2 (0.1–0.2) × vein 1CUb length. Metasoma ( Figs. 12E–F View FIGURE 12 ): first tergite lineate, without median longitudinal carina, lateral longitudinal carina incomplete, basal area smooth, first tergite length 1.3 (1.3–2.3) × ovipositor sheath length; hypopygium sparsely setose ventrally; ovipositor sheath sparsely setose, short, lanceolate, sheath tip dotted, thin plate on the edge absent, ovipositor sheath length 3.7 (1.8–4.4) × its width. Coloration ( Fig. 12A View FIGURE 12 ): head darkbrown except mandible yellow-brown with dark brown tips; mesosoma black and brown except propleura yellow and dark brown; coxa and femur yellow, tibia of leg I and II yellow, leg III mostly yellow except apex brown, tarsus of leg I and II yellow, tarsus of leg III dark brown; tegula dark brown; wings hyaline, veins and stigma dark brown; metasoma dark brown.

Male: Unknown.

Examined Material: Holotype female: COLOMBIA, Boyacá, Santuario de Fauna y Flora Iguaque , Quebrada Los Francos, N 5°25’ W 73°27’, 2869 m, Malaise, 25-iv-2003 – 15-v-2003, P. Reina leg. (Deposited in IaVH, code: M 3745 ) GoogleMaps

Paratypes: COLOMBIA: One female, Risaralda, Santuario de Fauna y Flora Otún Quimbaya , Camino Cuchilla, N 4°43’ W 75°35’, 2050 m, Malaise, 17-xi-2004 – 04-xii-2004, G. López leg., Code: M5033 GoogleMaps . One female, Risaralda, Santuario de Fauna y Flora Otún Quimbaya , Camino Cuchilla, N 4°43’ W 75°35’, 2050 m, Malaise, 20-iv-2004 – 11- v-2004, G. López leg., Code: M.4787 GoogleMaps . One female, Norte de Santander, Parque Nacional Natural Tamá , Municipio Toledo, Vereda Toledito , Acueducto Toledo , N 7°20’ W 72°29’, 2125 m, Malaise, 12/ 19-vii-2003, C. Leal leg., Code: M.3945 GoogleMaps . One female, Nariño, Municipio de Ricaurte, Reserva Natural La Planada , N 1°05’ W 77°24’, 1800 m. Código: ICN-ent 044200 GoogleMaps . One female, Norte de Santander, Parque Nacional Natural Tamá , Municipio Toledo, Vereda Toledito , Finca de Arquimedes , N 7°20’ W 72°29’, 1960 m, Malaise, 27-viii-2003 – 02-ix-2003, C. Leal leg., Code: M.3938 GoogleMaps . One female, Nariño, Reserva Natural La Planada , Parcela Olga, N 1°15’ W 78°15’, 1850 m, Malaise, 16-ix-2000 – 02-x-2000, G. Oliva leg., Code: M.886 GoogleMaps . One female, Valle del Cauca, Parque Nacional Natural Farallones de Cali , Los Andes , Quebrada Honda, N 3°34’ W 76°40’, 1730 m, Malaise, 29-iv-1998 – 30-iv-1998, W. Alfonso leg., Code: M.3178 GoogleMaps . One female, Huila, Parque Nacional Natural Cueva de Los Guácharos , Alto el mirador , N 1°38’ W 76°6’, 1980 m, Malaise, 21-iii-2002 – 5-iv-2002, J. Fonseca leg., Code: M.5080 . (Deposited in IaVH and ICN-ent) GoogleMaps

Etymology: The Latin word hemicirculus , meaning a semicircle, refers to the semicircular propodeal areola.