ORIGINAL ARTICLE A new macropterous genus with a new species of Vianaididae (Heteroptera, Tingoidea, Vianaididae) from Peru SARA I. MONTEMAYOR & DIEGO L. CARPINTERO Divisio ´n Entomologı ´a, Museo de Ciencias Naturales de La Plata, UNLP, Buenos Aires, Argentina (Received 17 April 2006; accepted 3 September 2006) Abstract In the present contribution a new genus and species is described and illustrated, Pterovianaida melchiori, from Peru. This is the first non-fossil macropterous Vianaididae known and it is the first time this family is reported from Peru. Keywords: Macropterous, new genus, new species, Peru, Vianaididae Introduction The Vianaididae are a small group of very peculiar Heteroptera. Recent genera are exclusively distrib- uted in the Neotropical Region and correspond to coleopteroid forms. Fossil genera are submacropter- ous or macropterous and belong to the Cretaceous amber of New Jersey. Up to now four Vianaididae genera were known: Anommatocoris China, 1945 with three species from Argentina, Panama and Trinidad; Thaumamannia Drake and Davis, 1960 with two species from Bolivia, Surinam and Guyana; Vianagramma Golub and Popov, 2000 and Vianathauma Golub and Popov, 2003, both of them fossil and monotypic. Although all recent species correspond to coleopteroid forms with vestigial eyes and completely coriaceous hemelytra, and are characterized by their myrmecophilous (Schuh & S ˇ tys, 1991; Schuh & Slater, 1995), some macro- pterous individuals that remain as are mentioned in the bibliography. While Vianaididae were originally described by Kormilev (1955) as a family close to Tingidae, Drake & Davis (1960) considered them as a group of highly specialized Tingids and therefore changed their status to subfamily. Some authors followed these criteria (Drake & Froeschner 1962; Drake & Ruhoff 1965; Doesburg 1977; Schuh & S ˇ tys 1991; Schuh & Slater 1995) but other disagreed and treated the vianaidids as a family (Scudder 1959; Carayon 1962; S ˇ tys & Kerzhner 1975; Froeschner 1996; Lis 1999; Golub & Popov 1998, 2000, 2003; Guilbert, 2001). The fossil macropterous genus Vianagramma provided new key evidence to establish Vianaididae as a family and to consider the Tingidae as a close but distinct lineage. In this contribution we describe a new macro- pterous genus composed of one species from Peru, which is also the first Vianadidae identified for this country. Results Pterovianaida gen. n. Head (Figure 1). Triangular in dorsal view, convex above. Eyes well developed, in dorsal view drop-like, in lateral view ovate, higher than wide; ocelli absent. Bucculae very narrow, subrectangular in lateral view, in ventral view subparallel, contiguous. Antennae (Figure 2) moderately long and slender, segments II, III and IV subequal, approximately three times segment I. Segment I barrel-shaped, segment II slightly claviform, segments III and IV cylindrical, wider at the center. Correspondence: D. L. Carpintero, Museo de Ciencias Naturales de La Plata, Divisio ´ n Entomologı ´a, Paseo del Bosque s/n 1900 La Plata, Buenos Aires, Argentina. Fax: 0054 221 4257527. Email: dcarpint@fcnym.unlp.edu.ar Studies on Neotropical Fauna and Environment, August 2007; 42(2): 133–136 ISSN 0165-0521 print/ISSN 1744-5140 online # 2007 Taylor & Francis DOI: 10.1080/01650520600997611