PROC. BIOL. SOC. WASH. 95(2), 1982, pp. 377-385 TWO NEW SPECIES OF THE FROG GENUS HYLODES FROM CAPARAO, MINAS GERAIS, BRASIL (AMPHIBIA: LEPTODACTYLIDAE) W. Ronald Heyer Abstract. — Two new species of the leptodactylid frog genus Hy lodes, H. babax and H. vanzolinii, are described from the Parque Nacional do Caparao, Minas Gerais, Brasil. The identities of Elosia {=Hylodes) glabra and H. lateristrigatus are reviewed. During a survey of the herpetofauna of the Parque Nacional do Caparao in November-December 1980, Dr. P. E. Vanzolini and I collected specimens of two species of Hy lodes. Study of these frogs in the laboratory reveals that both species are new to science. Examination of other Hylodes collected recently in the Atlantic Forests of Brasil, suggests that the current allocation of specific names to certain Hylodes species is in error. Reassignment of specific names is clarified preparatory to the description of the two new species from Caparao. Advertising calls were recorded on a Uher CR 134 cassette recorder with a Uher microphone or a Sony TCM 280 cassette recorder with a Sennheiser K3U microphone. Calls were analyzed on a Kay Sonagraph 6061 B, narrow filter, AGC in the off position. Current Status of Names Relatively few names have been proposed for members of the genus Hylodes. As currently understood, the following clusters of species can be recognized on the basis of external morphology. (1) The H. pulcher group contains Hylodes pulcher (B. Lutz, 1951), a very distinctive, moderate sized, slender, ranoid-like species. The distinctiveness of the species derives from its bright life colors; most individuals have bright blue and/or yellow dorsal spotting. (2) The H. mertensi group contains Hylodes mertensi (Bokermann, 1956), a large (56 mm SVL), ro-bust species with leathery dorsal skin. (3) The H. nasus group contains species that are moderate to large sized, of robust body form, with granular dorsal sur-faces, and lacking light dorsolateral stripes. Eight names have been proposed for members of this group: Elosia aspera Miiller, 1924; Hyla nasus Lichtenstein, 1823; Hyla ranoides Spix, 1824; Elosia nasuta Tschudi, 1838; Elosia bufonium Girard, 1853; Hylodes truncatus Steindachner, 1864; Elosia nasus meridionalis Mertens, 1927; and Elosia perplicata Miranda-Ribeiro, 1926. (4) The H. lateri-strigatus group contains species that are of small to moderate size, body form slender, ranoid-like, dorsum smooth, and in most members with light dorsolateral stripes. The names proposed for this group are Elosia lateristrigata Baumann, 1912; Elosia glabra Miranda-Ribeiro, 1926; Elosia magalhaesi Bokermann, 1964; Elosia ornata Bokermann, 1967; Hylodes regius Gouvea, 1979. Both new species belong to this latter cluster.
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