588 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
Physostetha MICHENER. 
Ann. Ent. Soc. Amer., vol. 31, pp. 515 and 523, 1988. Five species. 
Type.—Heriades carinata Cresson, 1864. (Original designation. ) 
Proposed as a subgenus of Heriades Spinola. 
Pithitis Kua. 
Magazin fiir Insektenkunde, vol. 6, pp. 198 and 225, 1807. 
Type.— (Apis) Megilla smaragdula (Fasricrus), 1787. (Monobasic.) 
Synonym of Ceratina Latreille, according to Dalla Torre, Catalogus hyme- 
nopterorum, vol. 10, p. 195, 1896. 
Plastandrena HepIcKE. 
Mitt. Zool. Mus. Berlin, vol. 19, p. 217, 1988. Eleven species. 
Type.— (Melitta) Andrena tibialis (Kirpy), 1802. (Original designation. ) 
Proposed as a subgenus of Andrena Fabricius. 
Platandrena VIERECK. 
Can. Ent., vol. 56, p. 21, 1924. 
Type.—(Andrena nasoni ROBERTSON, 1895)=Andrena vestita PRovANCHER, 
1888. (Monobasie and original designation. ) 
Proposed as a subgenus of Andrena Fabricius. 
Platynopoda WeEstTwoop (=—Audinetia LEPELETIER). 
In W. Jardine, Naturalist’s Library, vol. 26, Entomology, vol. 6, Bees, p. 271, 
1840. Two species. 
Type.—(Xylocopa latipes Fanrictus, 1804) =Apis latipes Drury, 1778. (By 
designation of Ashmead, Trans. Amer. Ent. Soc., vol. 26, p. 71, 1899.) 
Proposed as a subgenus of Xylocopa Latreille. 
Isogenotypic with Audinetia Lepeletier. 
Synonym of Xylocopa Latreille, according to Dalla Torre, Catalogus Hyme- 
nopterorum, vol. 10, p. 202, 1896. 
Plebeia SCHWARz. 
Bull. Amer. Mus. Nat. Hist., vol. 74, p. 480, 1988. Two species. 
Type.—Trigona mosquito F. Situ, 1863. (Original designation. ) 
Proposed as a subgenus of Trigona Jurine. 
Plesianthidium CAMERON. 
Trans. South African Philos. Soe., vol. 15, p. 256, 1905. 
Type.—Plesianthidium fulvopilosum CAMERON, 1905. (Monobasic.) 
Plesiopanurgus CAMERON. 
Journ. Bombay Nat. Hist. Soc., vol. 18, p. 130, 1907. 
Type.—Plesiopanurgus cinerarius CAMERON, 1907. (Monobasic.) 
(Plistotrichia MorAwi1Tz) =Ancyla LEPELETIER. 
Horae Soc. Ent. Ross., vol. 10, p. 184, 1873. 
Type.—(Nomia flavilabris Lucas, 1846) =Ancyla oraniensis LEPELETIER, 1841. 
(Monobasic. ) 
Isogenotypie with Ancyla through synonymy. 
(Plusia HorrMANNSEGG, not Husner, 1806, not OCHSENHEIMER, 1816) =Euglossa 
LATREILLE. 
Zool. Mag., vol. 1, p. 52, 1817. 
Type.—Plusia superba HorrMANNSEGG, 1817. (Monobasic.) 
Plusia Hoffmannsegg is preoccupied, but since it was placed as a synonym 
of Euglossa Latreille by Friese, Zeitschr. Syst. Hym. Dipt., vol. 4, p. 99, 
1904, no new name is proposed to replace it. 
