Apechoneura nigricornis Mocsary 1905
Creators: name: Herrera-Flórez, Andrés Fabián
name: Alvarado, Mabel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Apechoneura
Apechoneura nigricornis

description: Apechoneura nigricornis Mocsáry, 1905 (Description from Gauld, 2000) (Figs 1-17 & 88)   Diagnosis  
Mesosoma and metasoma dull orange; areolet petiolate; ovipositor sheath black.  
Female: fore wing length 10.4–13.6 mm.  
 Head   
Clypeus almost flat, with a weak transverse ridge near apex; malar space 0.6× as long as basal mandibular width (Fig. 8); lower face at narrowest point 0.9× as wide as height from clypeofacial suture to insertion of antenna; hypostomal carina strongly raised, joined by occipital carina far from base of mandible; posterior ocellus separated the eye by 1.3–1.4× its own maximum diameter (Fig. 7); antenna with first flagellomere about 1.0× as long as the second; subapical flagellomeres slightly elongated.  
 Mesosoma   
 Pronotum with upper hind margin swollen, forming a small conical projection; scutoscutellar groove broad and shallow; scutellum shallow, with a few weak transverse rugae posteriorly; epicnemial carina more or less entirely absent (Figs 1, 5 & 10); sternal region of mesothorax smooth and polished; posterior transverse carina represented only by small lateromedian crests (Fig. 7); metapleuron with a conspicuous sharp lateral projection near posterior end (Figs 1 & 5); submetapleural carina narrow with a distinct low median denticle; propodeum in profile more or less flat; anterior transverse carina mediodorsally incomplete so area basalis is not enclosed posteriorly (Fig. 7); area basalis slightly transverse; lateral longitudinal carina posteriorly weak or discontinuous (Fig. 7); lateromedian longitudinal carinae joining anterior transverse carina at an angle of about 100 degrees, not present behind anterior transverse carina, even as a vestige (Fig. 7); fore leg with tibia inflated, tarsus with long hairs on inner surface; mid leg with tibia bearing two or three stout spines on margin; hind coxa with anterior furrow deeply impressed, expanded ventrally, with a fringe of fine inconspicuous hairs; fore wing with areolet large, anteriorly pointed, with 2 m-cu joining it very slightly basal of middle (Figs 1, 3, 5 & 9); second distal cell short, with vein 1 m-cu about 0.5× the length of abscissa of Cu 1 between Rs&M and 1 m-cu (Figs 3 & 9); hind wing with the distal abscissa of Cu 1 joining cu-a (Figs 4, 11 & 12).   
 Metasoma   
Tergite I slender, 3.8–3.9× as long as posteriorly broad; sternite I short, reaching about 0.3 of length of tergite, with a weak median swelling centrally; tergite II 1.9–2.0× as long as broad, with isolated pubescence; tergite VII mediodorsally without an indentation posteriorly; tergite VIII, in lateral view, tapered to a bluntly rounded apex, without a cornus, and with uniformly scattered pubescence; tergite IX bearing long pubescence; ovipositor at rest extending beyond apex of metasoma by 3.6–3.8× the length of the hind tibia.  
 Color   
A uniformly brownish orange species; flagellum black, with basal two flagellomeres ventrally reddish; tergite IX infuscate; ovipositor sheath uniformly blackish brown. Anterior two pairs of legs yellowish, hind leg orange with distal 0.7 of tibia and entire tarsus blackish. Fore wing hyaline, with a distinct subapical black spot; pterostigma black.  
 Male (Figs 14–17 & 88)   
 Similar to female in structure, size and colour, hind coxa unspecialized; lower margin of tergite VII slightly turned under, bearing sparse long straight hairs that have their extreme ends turned about 90 o; claspers with a fringe of scattered moderately long hairs; aedeagus compressed, obliquely truncate apically; subgenital plate bearing moderately close long pubescence.   
 Type material: Lectotype ♀, (Apechoneura nigricornis Mocsary det. I. D. Gauld 1997) COSTA RICA: Rio San Carlos (Schild) id nr. 108994 HNHM Hym. Coll. (TM).   
 Non type material: ♀ COSTA RICA Prov. Limón. Veragua Rainforest, Los Valientes. 200- 300 m. 7 Jul 2010. R. Villalobos Colecta libre. L_N_211863_625417 # 99615. DNA Barcoding R. Zuñiga CCBD 07533. INB0004248360 INBIOCRI COSTA RICA. ♂ COSTA RICA Prov. Limón. Pococí. R. F. Cordillera Volcánica Central. Las Minas. 400- 500 m. 27 MAY-22 JUN 2012. W. Porras. Tp. Malaise. L_N_240821_545778 # 105506. COLOMBIA Antioquia: Porce: 1 hembra 30-VII-98. 1000m. C. Cadavid. (EPIC-ICH LAB-0054).
description: Published as part of Herrera-Flórez, Andrés Fabián & Alvarado, Mabel, 2022, The Apechoneura nigricornis species-group, one, two or three species?, pp. 201-222 in Zootaxa 5162 (3) on pages 202-206, DOI: 10.11646/zootaxa.5162.3.1, http://zenodo.org/record/6810045