A new species in the newly recorded genus Trachyusa (Hymenoptera: Braconidae: Alysiinae) from China Author Yao, Junli Author Kula, Robert R. Author Chen, Jiahua text Zootaxa 2015 3931 4 579 584 journal article 10.11646/zootaxa.3931.4.7 51d57538-f180-439d-93d7-0051de4bf5b5 1175-5326 239374 C9C46C84-BF6F-4F6D-8A88-9E7488AEDC11 Trachyusa Ruthe Trachyusa Ruthe, 1854 : 351 . Type species: Trachyusa nigriceps Ruthe, 1854 : 352 (monobasic and original designation). Cosmiocarpa Förster, 1862 : 264 . Type species: Alysia aurora Haliday, 1838 : 217 . Synonymized by Reinhard in Taschenberg (1866: 90) by transfer of type species, but synonymy already indicated by Förster (1862: 283) . Diagnosis. Antenna not widened, with 26–28 flagellomeres, first flagellomere slightly longer than second ( Fig. 2 ); maxillary and labial palpi with 6 and 4 palpomeres, respectively; eyes glabrous ( Fig. 3 ); ventral margin of clypeus convex ( Fig. 3 ); anterior tentorial pits medium-sized ( Fig. 3 ); third tooth of mandible without ventral protuberance ( Fig. 5 ), upper margin of second tooth with orthogonal protuberance, base of mandible with very long pubescence ( Fig. 5 ); pronope absent ( Fig. 4 ); notauli wide and long, with medio-longitudinal midpit posteriorly ( Figs 4 , 7 ); sternaulus present medially ( Fig. 6 ); metanotum protruding dorsally ( Fig. 6 ); vein 2RS of fore wing longer than vein 3RSa ( Fig. 1 ); vein 1m-cu of fore wing (sub)interstitial ( Fig. 1 ); vein 2cu-a of fore wing absent, first subdiscal cell open ( Fig. 1 ); pterostigma of female elliptical ( Fig. 1 ); veins cu-a of hind wing and (RS+M)a of fore wing present ( Fig. 1 ); vein M+CU of hind wing subequal to vein 1M or shorter ( Fig. 1 ); tarsal claws medium-sized, simple and without lobe; dorsope of first metasomal tergum absent ( Fig. 8 ); second metasomal tergum and basal half of third granulate ( Fig. 8 ); second and third metasomal terga with sharp lateral crease ( Fig. 9 ); ovipositor sheath short, slightly protruding beyond apex of metasoma, setose ( Fig. 9 ); ovipositor slender, without notch and somewhat curved ventrad. Distribution . Palaearctic ( Yu et al. 2012 ). Biology . Unknown.