242 BULLETIN 2 00, UNITED STATES NATIONAL MUSEUM 



METOPSIA WoUaston, 1854, p. 616. 



Oenotype: Metopsia ampliata Wollaston. 

 Fixed by : Wollaston, 1854, p. 616, by monotypy. 



Later citations: M. clypeata (Miiller), by Mequiguon, 1939, p. 137, not 

 originally included. M. ampliata Wollaston, by Tottenham, 1949b, p. 353. 

 Varian t spel lings : 



Metopsis Wusthoff, 1939, p. 122.' 

 Notes : See discussion under Phloeobium. The removal of Phloeobium to 

 another genus because of its genotype leaves the junior synonym Metopsia 

 as the correct name for this genus. 

 METOPSIS [Error for Metopsia]. 

 MIATHAMIA Cameron, 1941b, p. 479. 



Genotype : Miathamia bakeri Cameron. 



Fixed by: Cameron, 1941b, p. 479, by original designation, as "opacicollis 

 var. bakeri n. sp." 

 MICORHOPALUS [Error tov Mecorhopalus]. 

 MICRACHENIUM Koch, 1937a, p. 154. [Subgenus of Achenium.-} 

 Oenotype: Micrachenium tenellum (Eriehson) (Achenium) , 

 Fixed by : Blackvpelder, here, by subsequent designation. 

 Synonyms: (See Achenium). 

 MICRAEDUS [Error for Mici'oedus], 

 MICRAGYRTES ( See Appendix ) . 

 MICRALAMMATA [Error for Micralymma]. 

 MICRALMIA [Error for Micialymma]. 

 MICRALYAMMA [Error for Micralymma}. 

 MICRALYMMA Westwood, 1838b, p. 129. 



Oenotype : Micralymma johnstonis Westwood. 

 Fixed by : Westwood, 1838b, p. 129, by monotypy. 



Later citations : M. joJmstonis Westwood, by Westwood, 1838a, p. 18 ; by 



Shuckard, 1839, p. 92. M. brevipennis (Gyllenhal) , by Thomson, 1859, p. 49, 



not originally included. M. marinum (Stroem), by Lucas, 1920, p. 411; 



by Tottenham, 1949b, p. 356 ; not originally included. 



Discussion: The designations of brevipennis and marinum can be accepted 



only through their subjective synonymy with johnstonis. 

 Synonyms : 



MicRocALYMMA Agassiz, 1840, p. 232. [Emendation.] 

 MicROCALYMMA Gemmiuger and Harold, 1868, p. 663. [Emendation.} 

 Variant spellings : 



MICRALAMMATA P. H. Lucas, 1850, p. ciii.^° 



MiCRALMiA Mank, 1923, p. 227. 



MicEALYAMMA Javet, 1850, p. xxiv.'" 



MiCRALYMNA Fauvel, 1870, p. 109." 



Micp.ALYMUs Fauvel, 1871, p. 348." 



MiCRALYNMA Fauvel, 1874, p. 496.'^ 



MicRocALYMMA Agassiz, 1846, p. 232. [Emendation.] 



MiCROLYMMA Little, 1838, p. 237." 



Mycralymma Laboulbene, 1858, p. 102." 



" Ent. Blatter, vol. 35. 



1" Bull. Soc. Ent. France, 1850. 



" Pet. Nouv. Ent., vol. 2. 



" Bull. See. Linn. Norraandie, ser. 2, vol. 5. 



" Bull. Soc. Linn. Normandie, ser. 2, vol. 8. 



"Mag. Zool. Bot, vol. 2. 



"^ Ann. Soc. Ent. France, ser. 3, vol. 6. 



