Revision of the genus Centistes (Hymenoptera: Braconidae: Euphorinae: Centistini) of Costa Rica Author Aguirre, Helmuth Author Almeida, Luis Felipe Ventura De Author Shaw, Scott Richard text Zootaxa 2017 4216 1 1 46 journal article 37372 10.5281/zenodo.229787 4dc7ecb8-ca00-4e69-bfe8-5981cfec2a27 1175-5326 229787 95A0D8BA-1855-4D87-8F03-7C188B4426FA Centistes achterbergi Aguirre, Almeida & Shaw , sp. n. ( Figs 26–35 ) Female. Body length ( Fig. 26 ): 2.3–2.6 mm . Body color: head dark brown except scape, pedicel and base of gena yellowish and face brown; mesosoma dark brown, except legs and propleuron yellow; wings hyaline; metasoma dark brown except T1 and ovipositor sheath black-dark brown. Head ( Figs 27–28 ): antenna with 24–25 flagellomeres; flagellar length/width ratios as follows: F1 = 3.3, F10 = 2.7. F24 = 2.0; last flagellomere terminating apically in a sharp point; pedicel 1.0–1.2 as long as wide; scape 1.6–1.8 × longer than wide; mandibles when closed overlapping for 0.4–0.6 × mandible length; mandible width basally 0.4–0.5 × mandible length; malar space 0.3–0.4 × eye height, and 1.0–1.5 × basal mandible width; gena sparsely pubescent; shortest distance between eyes equal to clypeus width; eye in lateral view 1.6–1.8 × taller than wide; lateral ocellus separated from compound eye by a distance 1.7–2.4 × ocellar width; frons glabrous; vertex and temple with few scattered setae; temple width 0.8–0.9 × eye width; occipital carina thick and complete. Mesosoma: pronotum glabrous; pronotum laterally smooth, dorsally costate-rugulose; propleuron with anterior and medial margins rugose, remaining areas smooth; median mesonotal lobe anteriorly pubescent, posteriorly glabrous; lateral mesonotal lobes mostly glabrous with a single row of setae on lateral border; notauli either absent or only present anteriorly; pit on mesoscutum small and oval ( Fig. 30 ); scutellar sulcus with one carina; scutellar disc sparsely pubescent; mesopleuron centrally glabrous, borders and area below precoxal sulcus pubescent; precoxal sulcus foveate; metanotum carinated; metapleuron pubescent; propodeum pubescent except dorsum glabrous; propodeum ( Fig. 29 ) subdivided into anterior and posterior halves by a strong transverse carina, and a median-longitudinal dorsal carina present; propodeum surfaces rugose except smooth areas dorsally. Legs: hind coxa 1.2–1.4 × longer than middle coxa; hind femora length 5.1– 5.6 × maximum width; hind tibia length 9.5–12.2 × longer than maximum width; hind tibial spur 0.3–0.4 × as long as hind basitarsus; ratio of hind tarsomeres from basitarsus apically 18:9:8:6:10. Wings: fore wing length 2.4–3.1 mm ; pterostigma 3.3–3.8 × longer than maximum width; length of marginal cell 2R1 along anterior wing margin equal to the pterostigma length; vein r-rs 0.3–0.5 × as long as pterostigma width; vein Rs+M present as a short stub; vein m-cu basal with vein RS; hind wing with three sickle-shaped hamuli. Metasoma: first tergite basally 0.6–0.7 × as wide as apical width, and 1.6–1.7 × longer than apical width; first tergite longitudinally costate, with costae almost parallel ( Fig. 31 ); spiracle of tergum one situated on lateral margin near the basal quarter of segment; hypopygium ventrally convex with dorsal margin ranging from angulated to rounded; ovipositor sheath 2.2–3.4 × longer than basal width, and as long as basitarsus; ovipositor sheath densely pubescent, and terminating in a rounded area covered by small setae ( Fig. 32 ). FIGURES 21–25. Centistes wing venation. Arrows represent: a. vein Rs+M, b. intersection between vein RS and vein m-cu, c. vein m-cu. 21) vein Rs+M absent and vein m-cu apical to RS. 22) Vein Rs+M absent and vein m-cu basal to vein RS. 23) Vein Rs+M absent and vein m-cu intersticial to RS. 24) Vein Rs+M incomplete, present as a short stub, and vein m-cu basal to RS. 25) Vein Rs+M complete and vein m-cu basal to RS. Male. Body length ( Fig. 33 ): 2.2 mm . Body color: essentially as in female except gena totally dark brown and overall color of face and clypeus darker. Head ( Fig. 34–35 ): antenna with 21–24 flagellomeres; mandible width basally 0.4 × mandible length; malar space 0.4 × eye height; malar space 1.4 × basal mandible width; shortest distance between eyes equal to clypeus width; eye in lateral view 1.8 × taller than wide; lateral ocellus separated from compound eye by a distance 2.2 × ocellar width; temple width equal to eye width. Wings: fore wing length 2.1 mm . Metasoma: parameres brown, narrowing apically, and fringed with setae; aedaegus white, smooth, bilobate, narrowed subapically and expanded apically. Holotype female. COSTA RICA : San Jose , Cerro de la Muerte , 20 km S. Empalme , 2800 m , vii-ix.1990, P. Hanson leg., Malaise. Deposited in UWIM . Paratypes . COSTA RICA : On female, San Jose , Zurqui de Moravia , 1600 m , x–xii.1990 , P. Hanson leg., Malaise. Deposited in UWIM . One female , San Jose , Cerro de la Muerte , 2 km W. Empalme , 2300 m , ii.1995 , P. Hanson leg., Malaise. Two females, one male, San Jose , Zurqui de Moravia , 1600 m , vii.1990 , P. Hanson leg., Malaise. Two females, one male, San Jose , Zurqui de Moravia , 1600 m , ix–x.1990 , P. Hanson leg., Malaise. One female, San Jose , Zurqui de Moravia , 1600 m , v.1992 , P. Hanson leg., Malaise. One female, San Jose , 26 km N. San Isidro just S of division, 2100 m , ii–iv.1993 , P. Hanson leg., Malaise, secondary growth. One female, Cartago , La Cangreja , 1950 m , ix–xii.1992 , P. Hanson leg., Malaise. One female, Cartago-San Jose, 20 km S.E. Empalme , 2000 m , viii.1988 , P. Hanson leg., Malaise. Two males, San Jose , Zurqui de Moravia , 1600 m , vi.1990 , P. Hanson leg., Malaise. Three females, San Jose , Zurqui de Moravia , 1600 m , vi.1992 , P. Hanson leg., Malaise. Two females, San Jose , Zurqui de Moravia , 1600 m , vii.1992 , P. Hanson leg., Malaise. One female, Cartago , 4 Km, N.E. Cañón Génesis II , 2350 m , ii–iii.1996 , P. Hanson leg., Malaise. One female, San Jose , 26 Km, N. San Isidro, just South of Division , 2100 m , viii–ix.1991 , P. Hanson leg., Malaise, secondary growth. One female, San Jose , Zurqui de Moravia , 1600 m , x–xii.1990 , Paul Hanson leg., Malaise. All paratypes deposited in UWIM . Comments. Centistes achterbergi resembles C. marshi , but differs from the latter by having yellow stigma and less prominent eyes in dorsal view ( Fig. 28 ). Etymology. This species is named in honor of Dr Cornelius van Achterberg, prominent and prolific specialist in the study of Braconidae .