574 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
Micronomada CocKERELL AND ATKINS. 
Ann. Mag. Nat. Hist., ser. 7, vol. 10, p. 44, 1902. 
Type.—Nomada modesta Cresson, 1863. (Monobasic and original designa- 
tion.) 
Proposed as a subgenus of Nomada Fabricius. 
Microstelis RoBERTSON. 
Trans. Amer. Ent. Soc., vol. 29, pp. 170 and 175, 1903. Two species. 
Type.—Stelis lateralis Cresson, 1864. (Original designation.) 
Mimulapis BRIDWELL. 
Proc. Hawaiian Ent. Soc., vol. 4, p. 162, 1919. 
Type.—Mimulapis versatilis Brmwett, 1919. (Monobasie and original 
designation. ) 
(Monia WESTWOoD, not Gray, 1850) =Monidia CocKERELL. 
Trans. Ent. Soe. London, p. 221, 1875. 
Type.—Monia grisea WESTWoop, 1875. (Monobasic.) 
Monidia CocKERELL (—Monia WestTwoop, 1875, not Gray, 1850). 
Ent. News, vol. 16, p. 9, 1905. 
Type.—MMonia grisea Wrestwoop, 1875. (Autobasic.) 
Monilapis CoCKERELL. 
Ann. Mag. Nat. Hist., ser. 10, vol. 7, p. 529, 1981. 
Type.—(Hylacus) Halictus tomentosus (EVERSMANN), 1852. (Moncbasic 
and original designation.) 
Proposed as a subgenus of Halictus Latreille. 
Monilosmia ROBERTSON. 
Trans. Amer. Ent. Soe., vol. 29, pp. 166 and 171, 1903. 
Type.—(Osmia canadensis Cresson, 1864)=Osmia (Nothosmia) simillima 
F. Smiry, 18538. (Monobasic and original designation.) 
Synonym of Nothosmia Ashmead, according to Sandhouse, Mem. Ent. Soe. 
Washington, No. 1, p. 638, 1939. 
Monoeca LEPELETIER AND SERVILLE. 
Encycl. Méthod., Hist. Nat., Ins., vol. 10, p. 528, 1828. 
Type.—Monoeca brasiliensis LEPELETIER AND SERVILLE, 1828. (Monobasic.) 
Monumetha CrESSOoN. 
Proce. Ent. Soe. Philadelphia, vol. 2, p. 387, 1864. Three species. 
Type.—(Monumetha argentifrons Cresson, 1864)=(Chelostoma) Monu- 
metha albifrons (Kirrsy), 1837. (By designation of Titus, Journ. New 
York Ent. Soce., vol. 12, p. 26, 1904.) 
Morawitzia FRIESE. 
Zeitschr. Syst. Hym. Dipt., vol. 2, p. 185, 1902. 
Type.—Morawitzia panurgoides Friese, 1902. (Monobasic.) 
Morgania F. SMITH. 
Catalogue of hymenopterous insects... British Museum, pt. 2, p. 258, 
1854. 
Type.—(Pasites dichroa F. Smiru, 1854, not Ammobates dichroa SPINoLA, 
1843) =Morgania gerstdckeri ScHuuiz, 1906. (Monobasic.) 
Mucidobombus SKoRrIKOV. 
Bull. Sta. Région. Protect. Plantes Petrograd, vol. 4, p. 149, 1922. Two 
species. 
Type.—(Bombus) Mucidobombus mucidus (GERSTAECKER), 1869. (Present 
designation because of virtual tautonymy.) 
