LIST OF GENERA. 139 



Astata Lutieille, Precis, 114 (1796) 114 



Astichus Forster, Hyni. Stud, ii, 78 (1856) 79 



Asynacta Forster, Hyin. Stud, ii, 87 (1856) 80 



Ateleopterus Forster, llyni. Sttid. ii, 95 (1856) 83 



Athalia Leacb, Zool. Miscel. iii, 126 (1817) 19 



Atomacera Say, Bost. Jour. i. 212; Lee. Edit, ii, 673 (1836) 14 



Atractodes Gravenhorst, Ichii. Eur. iii, 789 (1829) 46 



Atritomus Forster, Verh. pr. RlieinL 1878, 56 83 



Atta Fabricius, Syst. Piez. 421 (1804) 98. 100, 102 



Augochlora Smitli, Brit. Mus. Cat. Hym. i, 73 (18,")3j 129 



Aulacomerus Spiuoia, Ann. Soc. Ent. Fr. iv, 137(1840) 15 



Aulacus Jurine, Hym. 89 (1807) 36 



Aulax Hartig {Aylax), Germ. Zeits. Ent. ii, 186 (1840) 32, 35 



Bseocharis Mayr, Verh. zool. -hot. Ges. Wien, xxv, 767 il875) 6it, 71 



Bseoneura Forster, Hym. Stud, ii, 100 (1856; 83 



Bagotomvis Forster, Hym. Stud, ii, 145 (1856) 7."S 



Bseus ILiliday. Ent. Mag. i, 270 (1833) 83 



Banchus Fal)ricius, Ent. Syst. Suppl. 209 (1798) 46 



Baryconus Forster, Hym. Stud. ii. 101 (1856) 83 



Baryscapus Fiir.ster, Hym. Stud, ii, 84 (1856) 80 



Basalys Westwood, Lond.-Edinb. Phil. Mag. iii, 343 (1833) 86 



Bassvxs Gravenhorst, Ichn. Eur. iii, 309 (1829) 47 



Bathystomus For.ster. Verh. pr. Eheinl. 1862, 235 56 



Belonocnema Mayr, Die Gen. gallenbw. Cynip. 16 '1881) 26, 29 



Belyta Jurine, Hym. 311 (1807) ; Forst. Hym. Stud, ii, 130. 133 87, 88 



Bembecinvis Costa, Faun, di Napoli, 18.59; Patton, Bull, v, etc., 345 115 



Bembex Fabricius [Bemhyx), Syst. Ent. 361 (1775) 115 



Bephrata Cameron, Biol. Ceutr.-Am. Hym. 109 (1884) 68 



Bethylus Latreille, Hist. Nat. iii, 315 (1802) ; xiii, 228 (1805) 83 



Biorhiza Westwood, Introd. Mod. Class. Ins. Synop. 56 (1840) 26, 28, 32, 35 



Blacus Nee.s, Act. Ac. L. C. ix, 306 (1818). (50 



Blasticotoma Klug. Jahrb. Ins. 251 (1834) l,s 



Blastothrix Mayr, Verh. zool.-bot. Ges. Wien, xxv, 697(1875i 70, 71 



Blennocampa Hartig, Blattw. 266 (1837) 15, 19 



Blepharipus St. Fargeau ; Pack. Proc. Ent. Soc. Phil, vi, .370; .see Crabro... 121 



Bombomelecta Patton, Bull, v, U. S. Geo. Surv. 370 (1879) 128 



Bombus Latreille, Hist. Nat. iii, 385 (1802) ; xiv, 63 (1805) 130 



Bothriothorax Eatzeburg, Ichu. d. Forst., i, 208 (1844) 69, 70 



Brachycentrus Tascli., Zeits. Ges. Nat. xxv, 106 (18(i5) ; .see Ci/rto'-ri/ptus.... 43 



Brachymyrmex Mayr, Ann. Soc. Nat. Mod. iii, 163 (18()8) 95. 96 



Brachysticha Forster, Hym. Stud, ii, 88 (18.56) 80 



Bracon Fabricius, Syst. Piez. 102 (1804). 06 



Brasema Cameron, Biol. Centr.-Am. Hym. 124 (1884) 68 



Csenacis Forster, Hym. Stud, ii, 64 (18,56) 76 



Csenocrepis Thomson, Hym. Scand. v, 51 (1878) 75 



CEenoneura Thomson, Opusc. Ent. ii, 270 (1870) 18 



Csenophanes Forster, Verh. pr. Rheinl. 1862, 236 .^7 



Caliroa Costa, Faun, di Napoli, 59 (18.59) L") 



Calliopsis Smith, Brit. Mus. Cat. Hym. i. 128 (18.53) 132 



Callirhytis Forster, Verh. zool.-bot. Ges. Wien, xix, 3.35 (1869) 26 



