408 BULLETIN 2 00, XHSTITED STATES NATIONAL MUSEUM 



XYLODROMUS Heer— Continued 



SpnonymiG homonyms : 



Xylodbomus of Thomson, 1859 = Xylostiba. 

 Synonyms : 



Drephoptlla Fiori, 1900a, p. 90. 

 Etheothassa Thomson, 1858, p. 38. 

 Variant spellings : 



XrLODROMus Fiori, 1900a, p. 92. 

 XYLOSTIBA Ganglbauer, 1895, p. 731. [Subgenus of Phloeonomdis.] 

 Genotype: Xylostiba moniUcornis (Gyllenhal) (Omalium). 

 Fixed by : Ganglbauer, 1895, p. 731, by monotypy. 

 Later citations: X. moniUcornis (Gyllenhal), by Lucas, 1920, p. 676; by 



Blackwelder, 1943, p. 51 ; by Tottenham, 1949b, p. 355. 

 Synonyms : ( See Phloeonomus) . 

 YLYO BATES [Error for Ilyobates]. 

 ZALMAENUS [Error for Zolmaenus]. 

 ZALOBIUS LeConte, 1874a, p. 49. 



Genotype : Zalobius spinicollis LeConte. 

 Fixed by : LeConte, 1874a, p. 49, by monotypy. 

 Later citations : Z. spinicollis LeConte, by Lucas, 1920, p. 678. 

 ZELEOTOMUS [Error for Zeteotomus]. 

 ZEOLEUSIS Steel, 1950e, p. 215. 



Genotype: Zeoleusis virgula (Fauvel) {Eleusis). 

 Fixed by : Steel, 1950e, p. 218, by original designation. 

 ZEOLYMMA Steel, 1950b, p. 29. 



Genotype: Zeolymma brachypterum Steel. 



Fixed by : Steel, 1950b, p. 30, by original designation and monotj^y. 

 ZETEOTOMUS Jacquelin du Val, 1857 (early), p. 33. 



Genotype: Zeteotomus brevicornis (Erichson) (Leptacinus) . 

 Fixed by : Jacquelin du Val, 1857, p. 33, by monotypy. 

 Synonyms : 



Metoponcus Kraatz, 1857c, p. 651. [Isogenotypic] 

 Cylindkocephalus Motschulsky, 1860b, p. 128. 

 Variant spellings : 



ZELEOTOMUS Marschall, 1873, p. 254. 

 Notes: The priority of this name over Metoponcus has been obscured by 

 the erroneous dating of both works involved. It is fairly certain that 

 Jacquelin du Val published his name several months before that of 

 Kraatz. 

 ZIROPHOBIUS [Error for Zirophorus]. 

 ZIROPHORAS [Error for Zirophorus]. 



ZIROPHORUS Dalman, 1821, p. 372. [Subgenus of Piestus.] 

 Genotype: Zirophorus fronticomis Dalman. 

 Fixed by : Crotch, 1870, p. 241, by subsequent designation. 

 Other citations: Z. scoriaceus (Germar), by Cuvier, 1849, p. 187, not orig- 

 inally included. Z. bicornis (Olivier) , by Lucas, 1920, p. 680, not originally 

 included. Z. fronticomis Dalman, by Blackwelder, 1943, p. 43. 

 Discussion: The designation of bicornis can be accepted only through the 



subjective synonymy of bicornis and fronticomis. 

 Synonymic homonyms: 



ZiBOPHOBUS Dalman, 1823, p. 23. 

 Homonyms by misidentification : 



ZiBOPHOBUS of Cuvier, 1849 = Leptochirus. 



