606 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
(Trichota Popov) =Hylaeus FABRICIUS. 
Compt. Rend. (Doklady) Acad. Sci. U. R. 8. 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. 
Isogenotypic with Hylaeus Fabricius and Pectinata Popov. 
Trichota was first proposed by Méhely, Naturgeschichte der Urbienen, pp. 
63 and 169, 1955, as a subgenus of Prosopis Fabricius to include two species 
but, under Article 25e¢ (amendment), it has no validity from that date, 
since no genotype was designated. 
Tricornibombus SKorRIKOV. 
Bull. Sta. Région. Protect. Plantes Petrograd, vol. 4, p. 151, 1922. 
Type.—(Bombus) Agrobombus (Tricornibombus) tricornis RADOSZKOWSKI, 
1888. (Monobasic.) 
Proposed as a subgenus of Agrobombus Vogt. 
Tridentosmia SCHMIEDEKNECHT. 
Apidae Huropaeae, vol. 2, p. 21 [887], 1884-86 [1885]. Six species. 
Type.—Osmia tridentata DUFOUR AND Perris, 1840. (By designation of 
Michener, Amer. Midland Nat., vol. 26, p. 159, 1941.) 
Proposed as a subgenus of Osmia Panzer, 
Triepeolus ROBERTSON. 
Can. Ent., vol. 38, p. 231, 1901. Nine species. 
Type.—Epecolus concavus Cresson, 1878. (Original designation. ) 
Trigona JuRINE (=—Amalthea RAFINESQUE). 
Nouvelle méthode de classer les hyménoptéres et les diptéres, vol. 1, p. 245, 
1807. Three species. 
Type.— (Apis amalihea Fasrictus, 17938) =Apis amalthea OLIvirR, 1789. (By 
designation of Latreille, Considérations générales... des insectes, p. 
439, 1810.) Trigona orbignyi Guérin, 1845, designated by Girard, Traité 
élémentaire d’entomologie, vol. 2, p. 725, 1879, was not originally included. 
Trilia VACHAL. 
Ann. Soc. Ent. France, vol. 68, p. 534, 1899. 
Type.—Dufourea (Trilia) muoti VACHAL, 1899. (Monobasic. ) 
Proposed as a subgenus of Dufourea Lepeletier. 
(Trinchostoma SLADEN) for Thrinchostoma SAUSSURE. 
Can. Ent., vol. 44, p. 214, 1915. 
Triopasites LINSLEY. 
Pan-Pacific Ent., vol. 15, p. 8, 1939. 
Type.—Triopasites timberlakei LInsLey, 1939. (Monobasic and original 
designation. ) 
Tropandrena VIERECK. 
Can. Ent., vol. 56, p. 21, 1924. 
Type.—Andrena fragilis F. SmirH, 1853. (Monobasic and original desig- 
nation.) 
Proposed as a subgenus of Andrena Fabricius. 
Synonym of Gonandrena Viereck, according to Cockerell (Can. Ent., vol. 64, 
p. 157, 1982). 
Trophocleptria HOLMBERG. 
Anal. Soc. Cient. Argentina, vol. 22, p. 275, 1886. 
Type.—Trophocleptria variolosa HoLMBerRG, 1886. (Monobasic.) 
Synonym of Hpeolus Latreille, according to Bréthes, Ann. Mus. Nac. Buenos 
Aires, vol. 19 (ser. 3, vol. 12), p. 68, 1909; and Ducke, Zool. Jahrb., Abt. 
Syst., Jena, vol. 34, p. 99, 1912. 
