GENERA AND SUBGENERA OF BEES—SANDHOUSE 607 
(Trypetes ScHENCK, not ScHONHERR, 1836) —Heriades Sprno.a. 
Jahrb. Ver. Naturk. Herzogthum Nassau, vol. 14, pp. 32 and 89, 1859. 
Type.—(Apis) Heriades truncorum (LINNAEUS), 1758. (Monobasic.) 
Isogenotypic with Heriades Spinola. 
Trypetes Schenck is preoccupied, but since it falls as a synonym of Heriades 
Spinola no name is proposed to replace it. 
Turnerella COCKERELL. 
Entomologist, vol. 48, p. 262, 1910. 
Type.—Turnerella gilberti CoCKERELL, 1910. (Monobasic.) 
Verbenapis CocKERELL AND ATKINS. 
Ann. Mag. Nat. Hist., ser. 7, vol. 10, p. 44, 1902. 
Type.—Calliopsis verbenae COCKERELL AND Porter, 1899. (Monobasic.) 
Proposed as a subgenus of Calliopsis F. Smith. 
Viereckella SwENK. 
Ent. News, vol. 18, p. 298, 1907. Two species. 
Type.—Viereckelia obscura SwWENK, 1907. (Original designation. ) 
Synonym of Hpeoloides Giraud, according to Crawford, Proc. Ent. Soc. Wash- 
ington, vol. 19, p. 167, 1917. 
Volucellobombus SKorRIKOV. 
Bul. Sta. Région. Protect. Plantes Petrograd, vol. 4, p. 149, 1922. 
Type —(Bombus) Volucellobombus volucelloides (Gripopo), 1891. (Mono- 
basic. ) 
(Xanthidium RosertTson, not EHRENBERG, 1833) —Heminomada CocKERELL, 
Can. Ent., vol. 85, pp. 174 and 177, 1903. Three species. 
Type.—Nomada luteola Oxvivirr, 1811. (Original designation. ) 
Xanthidium Robertson is preoccupied, but since it is considered by Swenk, 
Univ. Studies, Lincoln, Nebr., vol. 12, p. 9, 1912, to be synonymous with 
Heminomada Cockerell, no name is proposed to replace it. 
Xanthosarus ROBERTSON. 
Trans. Amer. Ent. Soc., vol. 29, pp. 168 and 172, 1903. 
Type—Megachile latimanus Say, 1823. (Monobasic and original desig- 
nation). 
Xanthosmia ROBERTSON. 
Trans. Amer. Ent. Soc., vol. 29, pp. 166 and 171, 1903. 
Type.—Osmia cordata Rosertson, 1902. (Monobasic and original designa- 
tion.) 
Synonym of Nothosmia Ashmead, according to Sandhouse, Mem. Ent. Soe. 
Washington, No. 1, p. 68, 1939. 
Xenoglossa F. SMITH. 
Catalogue of hymenopterous insects ... British Museum, pt. 2, p. 315, 1854. 
Type.—Xenoglossa fulva F. SmMirH, 1854. (Monobasic.) 
Xenoglossodes ASHMEAD. 
Trans. Amer. Ent. Soc., vol. 26, p. 63, 1899. 
Type.—WMelissodes albata Cresson, 1872. (Monobasie and original designa- 
tion. ) 
Xeralictus CocKERELL. 
Pan-Pacific Ent., vol. 4, p. 41, 1927. 
Type.—Xeralictus timberlakei COCKERELL, 1927. (Monobasic. ) 
Xeromegachile MITCHELL. 
Trans. Amer. Ent. Soc., vol. 59, pp. 302 and 309, 1934. Many species. 
Type.—Megachile integra Cresson, 1878. (Original designation.) 
Proposed as a subgenus of Megachile Latreille. 
