MEMORANDUM **

Rudy Diaz-Ruano, a native and citizen of Guatemala, petitions pro se for review of the Board of Immigration Appeals’ (“BIA”) order denying his motion to reopen removal proceedings. Our jurisdiction is governed by 8 U.S.C. § 1252. We review for abuse of discretion the denial of a motion to reopen, De Martinez v. Ashcroft, 374 F.3d 759, 761 (9th Cir. 2004), and we deny in part and dismiss in part the petition for review.

Diaz-Ruano has waived any challenge to the BIA’s dispositive determination that he failed to establish prejudice because his failure to depart within his voluntary departure period rendered him ineligible for cancellation of removal. See Martinez-Serrano v. INS, 94 F.3d 1256, 1259-60 (9th Cir. 1996) (issues not specifically raised and argued in a party’s opening brief are waived); see also 8 U.S.C. § 1229c(d) (2004).

We lack jurisdiction to review the BIA’s decision not to invoke its authority to reopen proceedings sua sponte. See Mejia-Hernandez v. Holder, 633 F.3d 818, 824 (9th Cir. 2011).

In light of this disposition, we need not address Diaz-Ruano’s remaining contentions.

PETITION FOR REVIEW DENIED in part; DISMISSED in part.