Revision of Anisepyris Kieffer (Hymenoptera, Bethylidae), with description of 135 new species Author Barbosa, Diego N. Author Azevedo, Celso O. text Zootaxa 2018 4416 1 1 258 journal article 30136 10.11646/zootaxa.4416.1.1 aa238a39-adf8-4b94-8808-c788670d0455 1175-5326 1242263 3341A80B-7E54-4C6B-8B46-1336094952E2 megacephalus species-group ( Figs 20N–O , 21 , 22 , 23A–K ) Females . Mandible with five distal teeth and evenly developed; clypeus long; antennal scrobe ecarinate or present; frontal angle of ocellar triangle acute or right; vertex straight. Pronotum without transverse pronotal carina and with posterior pronotal sulcus absent; parapsidal signum with anterior half continuous; anterior margin of propodeal declivity not setose; mesopleuron with lower mesopleural fovea opened, mesopleural suture opened, and posterior mesopleural sulcus absent. Forewing with R1 vein distinct. Mesotibia spinose Metatrochanter with lateral expansion. Metasoma with distal spiracle of metasoma small. Posterior hypopygeal margin projected uniform. Genitalia with 2vv as long as 1vv, and apex slender; sting (1vv+2vv) short [surpassing 3vv apex]; T9 apex very swollen; 1vf strongly curved upward; 1rv curved or strongly curved, with 1rv ventral process large, and posterior process short. Males . Frons coriaceous , with metallic reflexion. Clypeus short; median clypeal carina lower than epistomal suture, in lateral view; antenna not elongate; antennal scrobe ecarinate or present. Pronotal disc with transverse carina complete. Metapostnotum sometimes with first pair of metapostnotal carina and metapostnotal-propodeal suture convergent; propodeal declivity with sculpture present. Mesopleuron with lower mesopleural fovea and mesopleural suture opened. Forewing with Cu vein distinct of cu-a and R-rs&Rs vein distinct. Hind wing with one proximal and four distal hamuli. Posterior hypopygeal margin uniform or uniform Genitalia with paramere as long as or longer than basiparamere; inner margin of basivolsella angled; cuspis arm long. Distribution . This group rangs from Nearctic to Neotropical region. Remarks . This species-group was described by Evans (1965) as belonging to Rhabdepyris ( Trichotepyris ) , and was easily recognized by having the eye small, by lacking a transverse pronotal carina, and by having a posterior pronotal sulcus. All these characteristics were observed as diagnostic to megacephalus in this revision. We hypothesize these are character state reversions within Anisepyris , because all other species-groups share the following characteristics: the eye large, the transverse pronotal carina present, and the posterior pronotal sulcus present. The megacephalus species-group is composed of 31 species ( Table 1 ).