O. Merkl szerk.: Folia Entomologica Hungarica 68. (Budapest, 2007)

(sensu ELIOT 1973)in the dorsal forewing surface and the female anterior ductus bursae is much longer than the posterior ductus bursae; the group is named after Denivia hemon, which is one of the most common and widely distributed Neotropical lycaenid species. A KEY TO DENIVIA OF SOUTH AND SOUTHEAST BRAZIL Hindwing large tornai lobe with filamentous tail at vein CuA2 terminus, which is twiddled in the middle of its length 2 Hindwing with tornai lobe, filamentous tail at vein CuA2 terminus, which is twiddled right at the wing margin 4 Forewing ventral surface with medial and submedial pattern, hindwing ventral surface mottled in the basal region D. deniva Forewing ventral surface without medial pattern, hindwing ventral surface not mottled in basal area 3 Hindwing ventral surface with ash brown basal and marginal areas, medial area reddish brown D. curitabaensis Hindwing ventral surface with warm brown basal area, medial and marginal areas brown with green hue D. chaluma Male forewing ventral surface with anal blue scales, hindwing medial pattern gleaming green D. hemon Male forewing ventral surface without blue scales, hindwing medial pattern pale brown or whitish without gleaming scales Denivia espiritosanto sp. n. Acknowledgements - Prof. Dr. OLAF MIELKE in UFPR (Curitiba, Brazil) always willingly supported our work. Dr. ROBERT ROBBINS (Washington DC, USA) curated the UFPR lycaenids several years ago, which was an initial guide for building up the local lycaenid collection of the junior author. Dr. KURT JOHNSON (New York, USA) was an excellent adviser and help concerning neotropical lycaenids for both of us. Curators listed in the introduction gave access to the valuable collections under their care. Mr. HERBERT MlERS (Joinville, Brazil) and Mr. Ivo RANK (Sáo Bento do Sul, Brazil) contributed significantly to the knowledge of the