New fossil Praeaulacinae wasps (Insect: Hymenoptera: Evanioidea: Praeaulacidae) from the Middle Jurassic of China Author Li, Longfeng Author Shih, Chungkun Author Ren, Dong text Zootaxa 2014 3814 3 432 442 journal article 45527 10.11646/zootaxa.3814.3.10 960364a8-5285-4dac-a3b2-bde7d329b5e8 1175-5326 230482 9FBFCFC6-2D63-47AA-A698-DB14FD3E32AA Genus Archaulacus gen. nov. Type species. Archaulacus probus sp. nov. Etymology. From the Greek arch-, meaning “ancient”, and generic name Aulacus . Diagnosis. Head transversely board. Antenna consisting of more than 20 antennomeres. Fore wing with Rs originating far from pterostigma, pterostigma narrow, long, parallel-sided; first abscissa of Rs subvertical to R; 2rrs meeting Rs quite basad of 2r-m and slightly longer than the maximal width of 2rm; 2m-cu slightly basad of 2r-m, 2rm slightly longer and narrower than 3rm; 2rm in contact with 1mcu by a point; cu-a postfurcal. Hind wing with C present. Metasomal long-ovoid with first metasomal segment nearly triangular, ovipositor longer than fore wing. Remarks. We assigned Archaulacus to Praeaulacidae by the following diagnosis: long, polymerous antennae with smooth contours; fore wing with M+Cu forking much close to pterostigma than to wing base, 1r-rs absent, 2rm, 3r-m and 2m-cu present, 2A absent; ovipositor long with sheaths more than half length of metasoma. However, the new genus differs from other praeaulacines in fore wing with first abscissa of Rs subvertical to R; 2r-rs meeting Rs quite basad of 2r-m and slightly longer than the maximal width of 2rm; 2m-cu slightly basad of 2r-m. Species included. Archaulacus probus sp. nov.