Alt-rockers Toad the Wet Sprocket [ tickets ], who played a series of shows at "intimate venues" earlier this month, will extend their current unofficial reunion run through the summer.

The California-based band, which officially broke up in 1998, but has continued to work together in various configurations over the years, kicks off the outing May 21 in National Harbor, MD. After a few more May shows, the outing lurches forward to late June, with dates spread out across July. Details are included below.

Toad the Wet Sprocket hasn't released a studio album since 1997's "Coil," which peaked at No. 19 on the Billboard 200 album chart, but has issued a few posthumous affairs, including the 2004 live CD "Welcome Home: Live at the Arlington Theatre, Santa Barbara 1992," a set that chronicles the band's first show in its hometown following the breakthrough success of 1991's platinum-selling "Fear."

Frontman Glen Phillips continues to nurture a solo career, and early last year released an online-only EP, "The Secrets of the New Explorers." The set follows 2006's full-length "Mr. Lemons."

More recently, Phillips formed a folk-rock supergroup, which initially called itself The Scrolls, but eventually settled on the name Works Progress Administration, featuring Nickel Creek's Sean Watkins (guitar) and Sara Watkins (fiddle), along with pianist Benmont Tench (Tom Petty & The Heartbreakers), fiddler Luke Bulla, multi-instrumentalist Greg Leisz, drummer Pete Thomas (Elvis Costello & The Attractions) and bassist Davey Faragher (Imposters, Cracker). Samples from the band's planned debut album are streaming at WPA's website.