World catalog of the Stephanidae (Hymenoptera: Stephanoidea)
Authors: AGUIAR ALEXANDRE P. 
Published: December 2018

The Stephanidae literature through July 2004 is summarized and 326 valid species, including 6 fossil species, are cataloged. Information on the localization of primary and secondary type material, as well as updated names for the localities of primary types, are provided for all valid and synonymized species. Literature treatment of male and female specimens is discriminated in the synonymic listing of all species. The following 90 nomenclatural changes are made: Genus-level type designation (1): Bothrioceros Europaeus Sichel designated as type species of Bothrioceros Sichel. New combinations (69): From Diastephanus: Foenatopus alutaceus (Morley), F. anupam (Narendran & Sureshan), F. bilineatus (Elliott), F. burmaensis (Narendran & Sureshan), F. capitatus (Benoit), F. carinifrons (Enderlein), F. chinnarensis (Sureshan), F. chinensis (Elliott), F. christineae (Narendran), F. costifrons (Elliott), F. daccaensis (Narendran & Sureshan), F. dohrni (Enderlein), F. elegans (Elliott), F. elegantulus (Elliott), F. elongatus (Elliott), F. equatorialis (Benoit), F. flaviceps (Elliott), F. flavifrons (Elliott), F. frontilinea (Morley), F. fuscidens (Kieffer), F. gracilis (Kieffer), F. keralensis (Narendran & Sureshan), F. lucifer (Elliott), F. maculifemur (Enderlein), F. multicolor (Elliott), F. parviceps (Enderlein), F. parvulus (Elliott), F. priyae (Narendran & Sureshan), F. quadridens (Elliott), F. salomonis (Westwood), F. sangalensis (Benoit), F. semiglaber (Elliott), F. simillimus (Elliott), F. stom (Narendran & Sureshan), F. sudhae (Narendran & Sureshan), F. sulcatus (Elliott), F. szepligetii (Enderlein), F. tertianus (Morley), F. trialbatus (Elliott), F. trilineatus (Elliott), F. trilobatus (Elliott), F. wynadensis (Sureshan & Narendran); from Madegafoenus: Megischus bekilyanus (Benoit), M. occiputalis (Benoit); from Megischus: Afromegischus gigas (Schletterer), Foenatopus phoberopus (Sausurre); from Neostephanus: Foenatopus alluaudi (Kieffer), F. berlandi (Benoit), F. camerunus (Enderlein), F. collaris (Benoit), F. crassiceps (Bischoff), F. globiceps (Enderlein), F. insignis (Schletterer), F. longicaudatus (Benoit), F. micans (Benoit), F. obockensis (Benoit), F. oemidaphagus (Benoit), F. pauliani (Benoit), F. pentheri (Kieffer); from Pseudomegischus: Afromegischus tibiator (Schletterer); from Stephanus: Comnatopus xanthocephalus (Cameron); Megischus collectivus (Elliott), M. diversus (Schletterer), M. lanceolatus (Kieffer), M. sanmartinianus (Orfila), M. seyrigi (Benoit), M. hornianus (Enderlein), M. tricolor (Elliott), M. willineri (Orfila). Replacement names (3): Foenatopus annularis Aguiar, generic transfer and replacement name for Diastephanus annulipes Elliott, preventing secondary homonym with F. annulipes (Elliott); F. rufocinctus Aguiar, new status and replacement name for Stephanus togoensis var. fasciatus Enderlein, preventing secondary homonym with F. fasciatus Sz pligeti; Parastephanellus curtus Aguiar, replacement name for secondary homonym of P. curticollis (Elliott) with P. curticollis Elliott. New status (2): Comnatopus Achterberg, new status for Profoenatopus (Comnatopus) Achterberg; Parastephanellus coriaceus Kieffer, new status for Parastephanellus polychromus var. coriacea Kieffer. New genus-group synonyms (1): Pseudomegischus (Callomegischus) Achterberg, new syn- onymy for Afromegischus Achterberg. New species-group synonyms (7): Stephanus comma Morley, new synonymy for Comnatopus xanthocephalus (Cameron); Foenatopus flavicollis flavissimus Benoit, new synonymy for F. flavicollis Cameron; Stephanus testaceipes Elliott, Stephanus iesuiticus Orfila, S. paraguayensis Orfila, and S. martinezi Orfila, new synonyms for Megischus maculipennis Westwood; Parastephanellus impunctatus Elliott, new synonymy for P. nigricaudus (Sichel).Reinstated name (1): Megischus ruficeps Saussure, reinstated, invalidating M. saussurei (Schulz). Species inquirendum (1): Schlettererius rufipes (Say, 1824), a Braconidae. Nomina nuda (3): Foenus diadema Fabricius, nomen nudum for M. coronator (Fabricius); Stephanus curticauda Elliott, nomen nudum for M. curtus (Elliott); Stephanus frontalis Klug, nomen nudum, correspondent species unknown.