ABSTRACT. PANURGILLUS, A NEW GENUS OF PA NU RGINAE, WITII DESCRIPTI ON OF FOURTEEN SPECI ES FROM S OUTHERN BRA ZIL (HVMENO PTERA, A NDREN IDA E).PanurgilIus, a generic name used by J.S. Moure throughout various years in lill. as a substitue of Panllrginlls in the Neotropical Apifauna, is formally described. Ali specimens of lhe species here described were collecled during surveys of bees and melittophilous plants in th state ofRio Grande do Sul, southem Brazil. Various species of Panurgillus also occur in olher Slales of southern Brazil, in Argentina and probably in Uruguay, Paraguay and Eastern Bolivia. The bees are small (3,9-7,4 mm), black, with generally a few yellow paintings, two submarginal cells, lhe Isl m-cu dislanl to lhe base ofthe second submarginal cell, the clypeus nOI projected, lhe faci al foveae di slinct, scopa with simple, long hairs and lhe gonobase absent. Pa/lurgilllls vagabll/ldus Cockerell, 1918 is transferred to Pallurgillus as the type species and thirteen new species are described: P. eusliclus, P. jlavilarsis, P. jormosus, P. g uarilicola, P. hamalus, P. harlerae, P. holoSliclUS, P. malvacearum , P. mil/ulus , P. pe re~iae , P. plul11osulus, P. polilUS and P. reLiculalus. From some Slructures were took SEM photographs. KEY WORDS. Hymenoptera, Apoidea, Andrenidae, Panurginae, Pa/lurg il/us, bee systematics, southern Brazil Na região neotropical, a subfamília Panurginae é representada por mais de 20 gêneros (MICHENER 1979), mas em várias partes da América do Sul a apifauna aindaé pouco con h ecida. Levantamentos recentes de abe lh as e de plantas melitófilas no Estado do Rio Grande do S ul mostraram que existem muitas espécies de abelhas ainda não descri tas no sul do Brasi I