278 BULLETIN 2 00, UNITED STATES NATIONAL MUSEUM 



ORPHNEBIUS Motschulsky, 1858, p. 263. 



Oenotype: Orphnebius ventricosus Motschulsky. 



Fixed by : Motschulsky, 1858, p. 263, by monotypy. 



Later citations : O. ventricosus Motschulsky, by Fenyes, 1918, p. 24, 



Synonyms : 



Megalocephalobius Bernhauer, 1929a, p. 146. [Subgenus.] 

 Mesoce;phalobius Bernhauer, 1929a, p. 146. [Subgenus.] 

 AuLAcOTHORAcosros Bernhauer, 1929a, p. 147. [Subgenus.] 

 MicROcEPHAix>Bius Bemhauer, 1929a, p. 147. [Subgenus.] 

 Thoracobius Bernhauer, 1929a, p. 147. [Subgenus.] 

 Stenaspidobius Bernhauer, 1929e, p. 228. [Subgenus.] 

 Variant spellings: 



Orphebnius Fenyes, 1920, p. 269. 

 ORTHAGRIA Casey, 1906, p. 260. [Synonym of Borioropora.'] 

 Oenotype: Orthagria quadriceps (LeConte) (Falagria). 

 Fixed by : Casey, 1906, p. 260, by monotypy. 



Later citations : O. Quadriceps (LeConte), by Fenyes, 1918, p. 24. ^ 



Synonyms: {See Borboropora). ■ 



ORTHIDUS Mulsant and Key, 1876b, p. 339. ' 



Oenotype: Orthidus cribratus (Erichson) (PMlonthus) . 

 Fixed by : Mulsant and Key, 1876b, p. 339, by monotypy. 

 Later citations : O. cribratus (Erichson) , by Lucas, 1920, p. 465. 

 Synonymic homonyms : 



Orthidus Mulsant and Key, 1877b, p. 195. 

 ORTHODIATELUS Notman, 1920, p. 716. 



Oenotype : Orthodiatehis mnotabilis Notman. 

 Fixed by : Notman, 1920, p. 716, by monotypy. 

 ORTHOLESTES [Error for Ontholestes]. 

 ORTHOSTYGNUS [Error for Onthostygnus]. 

 ORUS Casey, 1884a, p. 136. 



Oenotype : Orus punctatus Casey. 



Fixed by : Blackwelder, 1939, p. 120, by subsequent designation. 

 Later citations : O. punctatus Casey, by Blackwelder, 1943, p. 277. 

 Synonyms : 



Leucorus Casey, 1905, p. 192. [Subgenus.] 

 Ptcnorus Casey, 1905, p. 194. 

 Notes : The present disposition of this name is based on the study by Black- 

 welder (1939). 

 ORYSSOMA [Error for Oryssomma]. 

 ORYSSOMMA Notman, 1925, p. 4. 



Oenotype : Oryssomma schwarzi Notman. 



Fixed by : Notman, 1925, p. 4, by original designation and monotypy. 



Variant spellings : 



Okyssoma Scheerpeltz, 1933, p. 1137, 

 ORYTELUS [Error for Oxytelus]. 



OSHOLUS Blackwelder, new name. [Subgenus of Neolosus.'] 

 Oenotype: Osholus tachiniformis (Motschulsky) (Holosus). 

 Fixed by : Blackwelder, here, through objective synonymy with Holosus, of 



which tachiniformis has already been fixed as genotype. 

 Synonyms: (See also Neolosus) . 



Holosus Motschulsky, 1857d, p. 496. [Objective. Not Steven, 1829.] 



