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, División Entomología, Paseo del Bosque s/n 1900 La Plata, Buenos Aires, Argentina. Fax: 00542214257527. Email: dcarpint@fcnym.unlp.edu.ar

ISSN 0165-0521 print/ISSN 1744-5140 online © 2007 Taylor & Francis DOI: 10.1080/01650520600997611

Thorax. Pronotum (Figure 1) with anterior lobe smooth, weakly elevated; posterior lobe with small scattered punctuations; collar slightly raised. Paranota carina-like. Scutellum well developed with small scattered punctuations. Metathoracic scent gland (Figure 4) provided with a Y-shaped peritreme that covers the entire metapleuron. Fore wings (Figure 3) with defined membrane and clavus, punctuated, with long, erect, scattered hairs except for membrane; outer margins serrated. Clavus welldeveloped and punctuated, costal area narrow with one row of small rounded punctuations; subcostal area narrow at base of hemelytra, widest at base of membrane, from there gradually narrowing down following the margins of the costal area but not surrounding it completely; discoidal area triangular, widest part with six rows of punctuations; membrane without nervures.

Legs. Slender, procoxae more separated from mesocoxae than the latter from metacoxae.

Abdomen. Ventrally covered with scattered long, white, semidecumbent hairs.

Type-species by present designation. Pterovianaida melchiori sp. n.

Etymology. Ptero - in allusion to their macropterous condition; vianaida - to indicate yet another genus in the family.