172 E. T. CRESSON. 



ETJXORIDES, Cresson. 

 americanus, Cress., Trans. Am. P^nt. Foe. iii, p. 107, 9- 



XYLONOMUS, Grav. 

 australis, Cress., Trans. Am. Ent. Soc. iii, p. IfiT, 9 • 

 humeralis, Sa?/, Contrib. Macl. Lye. i, p. 74, 9- 

 cincticomis, Ci-ess., Proc. Ent, Soc. Phil, iv, p. 288, 9- 

 stig-mapterus, Say, Long's 2d Exped. ii, p. .^25. {% ^). 

 frigidus, Cress., Trans. Am. Ent. Soc. iri, p. 168, 9- 

 albopictas, Cress., Trans. Am. Ent. Soe. iii, p. 168, % . 



ECHTHBUS, Grav. 

 niger, Cress., Can. Ent. i, p. 37, % ^ . 

 abdominalis. Cress., Can. Ent. i, p. 37, % ^ ~ 



ODONTOMERUS, Grav. 

 aethiops, Cres.'*., Proc. Ent. Soc. Phil, iv, p. 289, % ^ . 

 mellipes, -Say, Oontrib. Macl. Lye. i,p. 74; Bost. Jour. ii. p. 242. % 9. 

 vicinus, Cress., Trans. Am. Ent. Soc. iii, p. 168, % . 

 bicolor, Cre.^s., Trans. Am. Ent. Soc. iii, p. 109, 9- 

 abdominalis, Cress., Proc. Ent. Soc. Phil, iv, p. 289, 9-" 



DESIDERATA. 

 Acaenitus melleus, Say, Bost. Jour, ii, p. 249, 9, 

 Pimpla humida, Say, Bost. Jour, ii, p. 224, 9> — This evirlently l>eIo«ags to the 



genus jRAys-.sa. 

 Pimpla rufipes, Brulle, Hymen, p. 102, % 9- — This is probably South American 



while his annulipes is a common North American species. 

 Anomalon divaricatus, Say, Bost. Joar. ii, p, 244. — This is a species of GIf/pia 



and possibly identical with G. 'pulchripes described above. 



