LIST OF GENERA. 147 



Lycorlna Holmjfren, Ofv. laW, 126: 9v. Ak. Handl. 1860, 43 51 



Lyda Fabricins, Syst. I'iez. 4MlHn4) 16,20 



Lygrocerus Forster, Hyrn. Stud, ii, 97 (1856) 83 



Lyroda Say, Bost. .Four, i, 372 '1837j: Lee. Edit, ii, 755 114 



Lysitermus Foi-ster, Verb. pr. Hheinl. 18«>2, 236 57 



Macrocentrus Ciirtia, Knt. Mug. i. 187 (1833) 61 



Macrogrlenes Westwood, Loiid.-rdinI). IMdl. Mag. i, 127 (1832) 72 



Macrohynnis Fiii-ster, Hym. Stud, ii, 120 (1856) 87, 88 



Macrophya I)alill)om, Cons]). Tiiithr. 11 (183r>) 15,20 



Macropis I'liiizir, Faun. Ins. derm. 107, 16 (180})) 132 



Macroxyela Kirhy, List Hym. Brit. Mus. i, 351 (1882) 16 



Masarls Faliricius. Ent. Syst. ii, 283 (1793} 124 



Megachile Latreille, Hist. Nat. iii, 381 (1802) ; .xiv, 51 (1805) i:j3 



Megracilissa Smith. Brit. Mus. Cat. Hym. i, 123 (ia')3) 128 



Meeraspilus Westwood, Lond.-Edinh. I'hil. Map. i, 128 (1832) 83 



Megrastigmus Daiman, Sv. Ak. Handl. 1820, 178 68 



Megrastizus rattoii, Bull, v, U. S. Geo. Surv. 344 (1879) 115 



Megastylus Schiodte. (Juer. Rev. Zool. 1837, 139; Mag. Zool. 1839, In.s. pi. vi. 47 



Megischus Brnlle, Hym. 537 (1846) .52 



Megrorlsmus Walker, Clialc. Brit. Mus. (1846) ; Tli lus. Hym. Scand. iv, 240 . 73 



Melecta Latreille. Hist. Nat. xiv, 48 (18051 128 



Melissodes Latreille. (1829); Patton, Bull, v, U. S. Geo. Surv. 472 131 



Melittobia Westwood, Proc. Ent. Soc. Lond. v, Ixv (1849) 78 



Mellinus Faliricius, Ent. .Syst. ii, 285 (1793 » 119 



Meloboris Holnijjren, Ofv. ia58, 326; Sv. Ak. Handl. 18.58, 99 45 



Meniscus Seliiodte, Guer. Majj. Zool. 1839, Ins. pi. 6-10, p. 10, note 51 



Meraporus Walker, Ent. Mag. ii, 298 (18:J4) 77 



Merismus Walker, Ent. Mag. i. .375 (1833) 75 



Merisus Walker, Ent. Mag. ii, 166 (1834) 75 



Mesidia Forster, Hym. Stud, ii, 30 (1856) 71 



Mesochorus Gravenhorst, Ichn. Eur. ii, 960 (1829) 45 



Mesoleius Holmgren, Sv. Ak. Handl. 1855, 130 48 



Mesoleptus (iravenhorst, Ichn. Eur. ii, 3 (1829) 47 



Mesoneura llartig, Blattw. 228 (1837) 15 



Mesostenus Gravenhorst, Ichn. Eur. ii, 7.50 (182{)^ 43 



Messa Leach, Zool. Misc. iii, 126 (1817) 15 



Metaclisis Forster. Hjnn. Stud, ii, 106 (1856) 84 



Metacolus Forster, Hym. Stud. ii. 65 (18.5()) 74 



Metapelma Westwood, Proc. Zool. Soc. Lond. 1835, 69 80 



Metastenus Walker, Ent. Mag. ii, 301 (1834) 72 



Meteorus Haliday, Ent. Mag. iii, 24 (1835) (iO 



Methoca Latreille, Hi.st. Nat. xiii, 268 (1805) 107 



Metopius Gravenhorst, Ichn. Eur. iii, 287 (1829) 47 



Metopon Walker, Ent. Mag. ii, 302 (1834) 77 



Micradelus Walker, Ent. Mag. ii, 170 (1834) '. 74 



Microbembex Patton, Bull, v, U. S. Geo. Surv. 364 (1879) 116 



Microctonus Wesmael, Nouv. Mem. Ac. Brux. 183.5, 54 60 



Microdus Xees, Act. Ac. L. C. ix, 304 (1818) 59 



Microgaster Latreille, Hist. Nat. xiii, 189 (1805) 59 



Microlycus Thomson. Hj-m. Scand. v, 223 (1878) 79 



Microplectron Dahlbom, Ofv. 1857,292 79 



