A new species and a new record of Aulacus Jurine (Hymenoptera, Aulacidae) from the North Andean block with a key to Colombian species Author Santos, Eduardo Fernando Dos Universidade Estadual Paulista “ Júlio de Mesquita Filho ”, Instituto de Biociências, Letras e Ciências Exatas, Departamento de Ciências Biológicas. Rua Cristóvão Colombo, 2265, Jd. Nazareth, 15054 - 000, São José do Rio Preto, São Paulo, Brazil. Author Mazariegos, Luis A. Fundación Bioconservancy, Mesenia-Paramarillo nature reserve, Jardín, Antioquia, Colombia. text Zootaxa 2024 2024-08-23 5497 2 285 291 http://dx.doi.org/10.11646/zootaxa.5497.2.8 journal article 302131 10.11646/zootaxa.5497.2.8 2bd46a4a-96dc-458a-a8a3-c2378589a0a4 1175-5326 13618458 59DCFD3A-ED77-48C9-BEE5-412E07CDF522 Aulacus Jurine, 1807 Aulacus Jurine 1801: 163 . Nomen nudum. Aulacus Jurine 1807: 89 . Type species: Aulacus striatus Jurine by monotypy. Disphaeron Dahlbom 1837: 175 . Type species: Aulacus arcticus Dahlbom 1837 by monotypy. Synomized by Hedicke 1939: 18 . Pammegischia Provancher 1882: 302 . Type species: Pammegischia burquei Provancher , by monotypy. Synomized by Kieffer 1902 . Parafoenus Kieffer 1910: 350 . No species included. Type species: Parafoenus formosus Kieffer 1911: 213 , 215, by subsequent monotypy. Synomized by Townes 1950 . Neuraulacinus Kieffer 1910: 350 . No species included. Type species: Neuraulacinus braconiformis Kieffer 1911: 217 , by subsequent designation. Synomized by Townes 1950 . Micraulacinus Kieffer 1910: 350 . No species included. Type species: Micraulacinus elegans Kieffer 1911:214 , 219, by subsequent monotypy. Synomized by Townes 1950 . Disaulacinus Kieffer 1910: 350 . No species included. Type species: Disaulacinus flavimanus Kieffer 1911: 214 , 224, by subsequent monotypy. Synomized by Crosskey 1953: 759 . Pycnaulacus Cushman 1929: 17 . Type species: Pycnaulacus brevicaudus Cushman , by original designation. Synomized by Townes 1950 . Key to Species of Aulacus from Colombia 1. Fore wing hyaline with a narrow central black band and apical black spot....................... amazonicus (Roman) - Fore wing hyaline, at most with an apical black spot ( Fig. 1 )................................................... 2 2. Mesonotum with transverse carinae ( Fig. 2E )............................................................... 3 - Mesonotum punctuate, without transverse carinae........................................................... 4 3. Mesosoma black ( Fig. 1 )............................................................... costaricensis Smith - Mesosoma reddish-orange ( Fig. 2A, 2D, 2E ).................................................... gracielae n. sp. 4. Body yellowish; vertex short—in dorsal view, distance from the central ocellus to the vertex edge less than 0.8 × the ocular distance at the posterior ocellary line; mesonotum shining, with large scattered punctures................ ochreus Smith - Body mostly black; vertex elongate—in dorsal view, distance from the central ocellus to the vertex edge more than 1 × the ocular distance at the posterior ocellary line; mesonotum dull, rugose, hairy and with closely set punctures.. cephalus Smith