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 auricephalus Aguirre, Almeida & Shaw , sp. n. ( Figs 43–49 ) Female. Body length ( Fig. 43 ): 2.1–2.4 mm . Body color: head yellow except face, clypeus and genae white; sometimes frons black-dark brown and vertex, occiput and temple orange; flagellomeres brown and area between ocelli dark brown; mesosoma dark brown except propleura, pronotum, and mesopleuron ventrally yellow; fore and middle leg yellow, hind leg yellow with apical half of tibia and entire tarsus brown; wings hyaline; metasoma dark brown except T1 and ovipositor sheats black- dark brown. Head ( Figs 44–45 ): antenna with 22–23 flagellomeres; flagellar length/width ratios as follows: F1 = 3.2, F10 = 2.0, last flagellomere = 2.2; last flagellomere terminating apically in a sharp point; pedicel as long as wide; scape 1.7–2.0 × longer than wide; mandibles when closed overlapping for 0.4–0.5 × mandible length; mandible width basally 0.4 × mandible length; malar space 0.2 × eye height, and equal to basal mandible width; gena pubescent, except smooth around eye; shortest distance between eyes equal to clypeus width; eye in lateral view 1.7–1.8 × taller than wide; lateral ocellus separated from compound eye by a distance 1–1.5 × ocellar width; frons glabrous except sparse setae around eyes; vertex pubescent; temple pubescent; temple width 0.7–0.8 × eye width; occipital carina either medially interrupted or thin and complete. Mesosoma: pronotum glabrous; pronotum in lateral view mostly smooth, medially carinate; propleuron with anterior and medial margins rugose, remaining surface smooth-punctate; median mesonotal lobe pubescent; lateral mesonotal lobes sparsely pubescent; notauli either absent or only present anteriorly ( Fig. 47 ); pit on mesoscutum large and oval ( Fig. 47 ); scutellar sulcus with one carina; scutellar disc sparsely pubescent; mesopleuron centrally glabrous, borders and area below precoxal sulcus pubescent; precoxal sulcus foveate; metanotum carinated and pubescent; propodeum pubescent except dorsum glabrous; propodeum subdivided into anterior and posterior halves as well as into dorsal and posterior areolae by a strong carinae ( Fig. 46 ); propodeum with a medianlongitudinal dorsal carina present, and with surfaces mostly smooth except laterally rugose, but surfaces become rugulose or rugose around the carinae. Legs: hind coxa 2.0 × longer than middle coxa; hind femora length 4.0 × maximum width; hind tibia length 9.0 × longer than maximum width; hind tibial spur 0.4 × as long as hind basitarsus; ratio of hind tarsomeres from basitarsus apically 13:7:6:4:8. Wings: fore wing length 2.1–2.5 mm ; pterostigma 2.8–3.1 × longer than maximum width; length of marginal cell 2R1 along anterior wing margin equal to the length of pterostigma; vein r-rs 0.4–0.5 × 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 0.6–0.8 × as wide as apical width, and 1.6–1.7 × longer than apical width; sculpture of first tergite longitudinally costate with costae almost parallel ( Fig. 48 ); spiracle of tergum one situated on lateral margin near the basal quarter of segment; hypopygium long or short, posterior margin truncated, and ventrally either convex or folded; ovipositor sheath 3.0– 3.8 × longer than basal width, and 1.3–1.8 × as longer as basitarsus; ovipositor sheath pubescent, and terminating in a rounded point ( Fig. 49 ). Male. Unknown. Holotype female. COSTA RICA : Guanacaste , Santa Rosa National Park , 300 m , ex. Malaise trap , 18.x– 8.xi.1986 , I.D. Gauld & D. Janzen , (SE) Bosque San Emilio 50 years old deciduous forest (O) in clearing, fully isolated part of day. Deposited in UWIM . Paratypes . COSTA RICA : One female, Puntarenas , San Vito , Estacion Biologica Las Alturas , 1500 m , vi.1992 , P. Hanson , Malaise. Two females , Guanacaste , Santa Rosa National Park , Bosque San Emilio , Malaise trap 5 in clearing, 300 m , 18–29.xi.1986 , I. Gauld. (SE) Bosque San Emilio , 50 yr old deciduous forest (O) in clearing, fully isolated part of day. Two females , Guanacaste , Santa Rosa National Park , 300 m , ex. Malaise trap , site: H-2-C, 8–29.xi.1986 , I.D. Gauld & D. Janzen. (H), open regenerating woodland less than 10 years old (C) more or less fully shaded as possible. One female , Guanacaste , Santa Rosa National Park , 300 m , ex. Malaise trap , site H-1-D, 8–29.xi.1986 , I.D. Gauld & D. Janzen , [H] open regenerating woodland less than 10 years old [O] in clearing, fully isolated part of day. One female , Guanacaste , Santa Rosa National Park , 300 m , ex. Malaise trap , site H-1-D, 18.x–8.xi.1986 , I.D. Gauld & D. Janzen , [H] open regenerating woodland less than 10 years old [O] in clearing, fully isolated part of day. One female , Guanacaste , Santa Rosa National Park , 300 m , ex. Malaise trap , 16.xi–7.xii.1985 , I.D. Gauld & D. Janzen , [SE] Bosque San Emilio 50 years old deciduoud forest [C] more or less fully shaded as possible. One female , Guanacaste , Santa Rosa National Park , 300 m , ex. Malaise trap , site BH-12- C, 28.xii.1985 – 18.i.1986 , I.D. Gauld & D. Janzen, [BH] Bosque Humedo, mature evergreen dry forest [C] more or less fully shaded as possible. All paratypes deposited in UWIM. Comments. Centistes auricephalus , C. hirsutus and C. pilosus share a conspicuous pubescence on head and thorax. However, C. auricephalus is distinctive because of its yellow face and longer ovipositor sheaths. Centistes auricephalus has been intensively collected at elevations below 500 m , which is uncommon when compared with the rest of Costa Rican Centistes species since most of them inhabit habitats around 1600 m . Etymology. The name of this species is formed by the Latin prefix “auri” that means gold, and the Latin stem “cephalus” which means head.