Centistes chorotegus Aguirre, Almeida & Shaw, sp. n.
Creators: name: Aguirre, Helmuth
name: Almeida, Luis Felipe Ventura De
name: Shaw, Scott Richard
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Centistes
Centistes chorotegus

description: Centistes chorotegus Aguirre, Almeida & Shaw, sp. n.
(Figs 78–84)
Female. Body length (Fig. 78): 1.8–1.9 mm. Body color: head dark brown except clypeus, pedicel and scape yellow; mesosoma dark brown, except legs and propleuron yellow; wings hyaline; metasoma black-dark brown.
Head (Figs 79–80): antenna with 21 flagellomeres; flagellar length/width ratios as follows: F1 = 3.7, F10 = 2.0, F21 = 2.5; last flagellomere terminating apically in a sharp point; pedicel 1.3 × longer than wide; scape 1.8 × longer than wide; mandibles when closed overlapping for 0.4–0.5 × mandible length; mandible width basally 0.5 × mandible length; malar space 0.3–0.4 × eye height, and equal to basal mandible width; gena sparsely pubescent; shortest distance between eyes equal to clypeus width; eye in lateral view 1.8–1.9 × taller than wide; lateral ocellus separated from compound eye by a distance 1.8 × ocellar width; frons glabrous; vertex with a few scattered setae; temple with few scattered setae; temple width equal to eye width; occipital carina thick and complete. Mesosoma: pronotum glabrous; pronotum in lateral view mostly smooth, medially foveate; propleuron with anterior and medial margins rugose, remaining surface smooth; median mesonotal lobe pubescent anteriorly, glabrous posteriorly; lateral mesonotal lobes mostly glabrous with a single row of setae on lateral border; notauli either absent or only present anteriorly (Fig. 82); pit on mesoscutum absent (Fig. 82); scutellar sulcus with three carinae; scutellar disc pubescent; mesopleuron centrally glabrous, borders and area below precoxal sulcus pubescent; precoxal sulcus foveate; metanotum mostly smooth with few and weak carinae; metapleuron pubescent; propodeum pubescent except dorsum glabrous; propodeum subdivided into anterior and posterior halves by a strong transverse carina, and either with or without a median-longitudinal dorsal carina (Fig. 81); propodeum with surfaces dorsally rugulose, posteriorly smooth-irregular. Legs: hind coxa 1.5 × longer than middle coxa; hind femora length 5.2 × maximum width; hind tibia length 11.7 × longer than maximum width; hind tibial spur 0.5 × as long as hind basitarsus; ratio of hind tarsomeres from basitarsus apically 10:6.5:5:4:6.5. Wings: fore wing length 2.2 mm; pterostigma 3.5–4.1 × longer than maximum width; length of marginal cell 2R1 along anterior wing margin 1.2–1.3 × the length of pterostigma; vein r-rs 0.7 × as long as pterostigma width; vein Rs+M absent; vein m-cu either interstitial or apical with vein RS; hind wing with three sickle-shaped hamuli. Metasoma: first tergite basally 0.7 × as wide as apical width, and 1.6–1.9 × longer than apical width; sculpture of first tergite either longitudinally costate with costae almost parallel or costate-rugulose with costae irregular (Fig. 83); spiracle of tergum one situated on lateral margin near the basal quarter of segment; hypopygium ventrally slightly concave, with a couple of lobe-like protuberances projecting downward (Fig. 84); ovipositor sheath 2.4–3.3 × longer than basal width, and 1.2 × as longer as basitarsus; ovipositor sheath pubescent, and terminating in a rounded area (Fig. 84).
Male. Unknown.
Holotype female. COSTA RICA: San Jose, Cerro de la Muerte, 2 Km W. Empalme, 2300 m, ii.1995, P. Hanson leg., Malaise. Deposited in UWIM.
Paratypes. COSTA RICA: One female, Cartago, 4 Km N.E. Cañon Génesis II, 2350 m, ix.1995, P. Hanson, Malaise. One female, Cartago, 4 Km N.E. Cañon Génesis II, 2350 m, ii–iii.1995, P. Hanson, Malaise. Two females, Cartago, 4 Km N.E. Cañon Génesis II, 2350 m, vii.1996, P. Hanson, Malaise. One female, Cartago, 4 Km N.E. Cañon Génesis II, 2350 m, viii.1996, P. Hanson, Malaise. One female, Cartago, 4 Km N.E. Cañon Génesis II, 2350 m, vii.1995, P. Hanson, Malaise. One female, Cartago, 4 Km N.E. Cañon Génesis II, 2350 m, viii.1995, P. Hanson, Malaise. All paratypes deposited in UWIM.
Comments. Centistes chorotegus and C. bicaudatus share clasper-like structures on the hypopygium, but C. chorotegus can be recognized by the absence of a pit on the mesoscutum (pit present in C. bicaudatus).
Etymology. This species receives its name for the Chorotega people, an indigenous group inhabiting Costa Rica, Honduras, Nicaragua (Onofrio-grimm 1993).
description: Published as part of Aguirre, Helmuth, Almeida, Luis Felipe Ventura De & Shaw, Scott Richard, 2017, Revision of the genus Centistes (Hymenoptera: Braconidae: Euphorinae: Centistini) of Costa Rica, pp. 1-46 in Zootaxa 4216 (1) on pages 18-20, DOI: 10.5281/zenodo.229787