The Apechoneura nigricornis species-group, one, two or three species? Author Herrera-Flórez, Andrés Fabián Sedanstr. 19, 20146, Hamburg, LIB Hamburg ehemals CeNak & Friedrich-Schiller-Universität Jena, Erbertstrasse 1, D- 07743 Jena, Germany. Author Alvarado, Mabel Departamento de Entomología, Museo de Historia Natural, UNMSM. Av. Arenales 1256 Jesús María, Lima 14, Perú. text Zootaxa 2022 2022-07-07 5162 3 201 222 journal article 93658 10.11646/zootaxa.5162.3.1 75585fa5-efcc-4c50-a317-e19ee5ef9ca2 1175-5326 6810045 4374F839-3EC2-4615-A8E3-DB63CD7CAF28 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 ). FIGURES 1–4. Lectotype of Apechoneura nigricornis Mocsary 1905 (female), 1 – 2 Photographs, 3 – 4 Drawings. 1 Habitus (lateral view), 2 Habitus (dorsal view), 3 Fore wing, 4 Hind wing. FIGURES 5–9. A. nigricornis (female specimen from Costa Rica), 5 – 8 Photographs, 9 Drawing. 5 Habitus (lateral view), 6 Habitus (dorsal view), 7 Head and mesosoma (dorsal view), 8 Head (frontal view), 9 Fore wing. FIGURES 10–17. 10 – 13 A. nigricornis (female specimen from Colombia), 10, 11 & 13 Photographs, 10 Habitus (lateral view), 11 Hind wing, 12 Hind wing (Drawing), 13 Apical part of metasoma. 14 – 17 A. nigricornis (male specimen from Costa Rica), 14, 15 & 17 Photographs,14 Habitus (lateral view), 15 Habitus (dorsal view), 16 Hind wing (Drawing), 17 Head (frontal view). 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 ) .