AMERICAN HYMENOPTERA. 169 



Udh. — Massachusetts. The tubercles at apex of nietathorax are 

 not so prominent as iu mclliprs, and the abdomen less shining. 



4. Odontomerus bicolor, n. sp. — J. — Black, polishetl, head and thorax with 

 scattered punctures; nietathorax with sparse pubescence, and with two approx- 

 imate inedisin carinte, sides coarsely jiunctured ; wings tinged with fuliginous; 

 legs including coxae and abdomen except extreme base of first segment, ferru- 

 ginous; ovipositor much longer t'lan the body. Length 7.i lincs,^ 

 Hab. — Peunsjivania. 



COLEOCENTRUS, Grav. 

 Pettitii, Cress., Tanadiain Entomidogist, i, p. :;5, 9- 



AROTES, Grav. 

 formosus, C-es-f., Can. Ent. i, p. 34; Trans, Am. Ent. Soc. ii, p. 2r)0, % 9- 

 vicinus, Cress., Trans, Am. Ent. Soc, ii, p. 2C^0, %~ 

 venustas, Cress., Trans. Am. Ent. Soc. ii, p. 2(50, % 9- 

 amoeaus, Cress,, Can. Ent. i, p. :?4; Trans. Am. Ent, Soc, ii, p. 2fi0, % 9 • 

 decorus, iS!ay., Bost. Jour. Xat. Hist, i, 248. Cress., Trans. Am. Ent. Soc. ii, }». 

 260, ^ 9. 



ACCENITES, Grav. 



rupinsulensis, Walsk. Cress,, Trans. Am. Ent. Soc. iii, p. 143,9- 



RHYSSA, Grav. 

 persuasoria, Linn., Ac. Cress,, Proc, Ent. Soc. Phil, iv, ji, 27D. % 9 

 albomaculata, Cress., Proc, Ent. Soe, Phil, iii, p. 31S, 9- 

 canadeusis, Cre.ss., Can. Ent. i, p, 35, 9 • 



THALESSA, Ilolmgr. 

 Nortoni. Cress., Proc. Ent. Soc. Phil, iii, p. 317, 9- 

 lunator, Fabr., Ent. Syst, ii, p. 162, ( *& ? ). 

 atrata, Fabr., Ent, Syst, ii, p. 179. Brulle, Ilym. tab. 40, fig. 1, 9. 



laevigata, Brulle, Hym, p, 78; tab, 40 fig, 2, %. 

 nitida, Cress., Proc Eut. Soe, Phil, iii, p. 319, %. 



EPHIALTES, Grav. 

 rex, Kricchb., Stett, Ent. Zeit. .xv, p. 1.55, ( 9 )- 

 occidentalis, Cress., Proc. Ent. Soc. Phil, iv, p. 269, 9. 

 tuberculatus, Fo¥,rcr, Grav. Ich. Eur. iii, p. 228, ( 9 )• 

 perlongus, Cress., Trans. Am, Ent. Soc. iii,p, 143, %. 

 macer. Cress., Can, Ent, i, p. 35, 'J, 9- 

 albipes, d-ess.. Trans, Am. Ent. Soc. iii, p. 143, 9- 

 irritator, Fabr., Eut. Syst. ii, p. 164. ( 'J, 9-) 



EPIMECIS, Brulk'. 

 Wiltii, Cress., Trans. Am. Ent. Soc. iii, p. 143, 9. 



PERITHOUS, Ilolmgr. 

 pleuralis, Cress., Can. Eut. i, i>. .'Ki, 9 • 



THERONIA,, Ilolmgr. 

 melanocephala, lirullc, Ilym. ]i. ii!). ( /^ 9 ). 

 fulvescens, Cress., Proc, Ent. Soc. Phil, iv, p, 208, ( "J, 9 )• 



