586 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
Pasitomachtes BISCHOFF. 
Deutsche Ent. Zeitschr., p. 596, 1923. Two species. 
Type.—Pasitomachtes nigerrimus BiscHorF, 1923. (Original designation.) 
Patellapis FRIESE. 
In Schultze, Zool. u. anthropol. Ergebn. Forschungsreise Stidafrika, vol. 2, 
pp. 127 and 148, 1909. Three species. 
Type.—Halictus (Patellapis) schultzei (FRiksE), 1909. (By designation of 
Cockerell, Ann. Durban Mus., vol. 2, p. 311, 1920.) 
Proposed as a subgenus of Halictus Latreille. 
(Patera ScHWARz, not Lesson, 1837, not ALBERS, 1850)=Partamona ScHWARz. 
Bull. Amer. Mus. Nat. Hist., vol. 74, p. 475, 1988. 
Type.—MVelipona testacea Kiva, 1807. (Monobasic and original designa- 
tion. ) 
Proposed as a subgenus of Trigona Jurine. 
Pavostelis SLADEN. 
Can. Ent., vol. 48, p. 313, 1916. 
Type.—Stelis montana Cresson, 1864. (Monobasic.) 
Proposed as a subgenus of Stelis Panzer. 
Pectinata M@HELY. 
Naturgeschichte der Urbienen, pp. 54 and 161, 1935. Thirteen species. 
Proposed as a subgenus of Prosopis Fabricius, but invalid under Article 25¢ 
(amendment) of the International Rules of Zoological Nomenclature, 
since no genotype was designated. 
(Pectinata Popov) =Hylaeus FAprictus. 
Compt. Rend. (Doklady) Acad. Sci. U. R. S. S., new ser., vol. 25, p. 169, 1939. 
Type.—(Apis) Prosopis annulata (LINNAEUS), 1758. (Monobasie and origi- 
nal designation. ) 
Proposed as a subgenus of Prosopis Fabricius. 
Iscgenotypie with Hylaeus Fabricius and Trichota Popov. 
Pectinata was first proposed by Méhely, Naturgeschichte der Urbeinen, pp. 54 
and 161, 1935, as a subgenus of Prosopis Fabricius to include thirteen 
species, but according to Article 25¢ (amendment) it has no validity from 
that date since no genotype was designated. 
Pelandrena CocKERELL [fossil]. 
Ent. News. vol. 20, p. 159, 1909. 
Type.—Pelandrena reducta COCKERELL, 1909. (Monobasic. ) 
Pentaperdita CocKERELL and PorTER. 
Ann. Mag. Nat. Hist., ser. 7, vol. 4, p. 414, 1899. 
Type.—Perdita albovittata CocKEREtL, 1895. (Monobasic.) 
Proposed as a subgenus of Perdita F. Smith. 
Peponapis ROBERTSON. 
Can. Ent., vol. 34, p. 324, 1902. 
Type.—Macrocera pruinosa Say, 1836. (Monobasie and original designa- 
tion.) 
Synonym of Yenoglossa F. Smith, according to Cockerell, Trans. Amer. Ent. 
Soe., vol. 32, p. 104, 1906. 
Perdita F. SMITH. 
Catalogue of hymenopterous insects ... British Museum, pt. 1, p. 128, 
1853. 
Type.—Perdita halictoides F. SmirH, 1853. (Monobasic.) 
