A new macropterous genus with a new species of Vianaididae (Heteroptera, Tingoidea, Vianaididae) from Peru Author Montemayor, Sara I. Author Carpintero, Diego L. text Studies on Neotropical Fauna and Environment 2007 2007-08-01 42 2 133 136 journal article 10.1080/01650520600997611 42dcf7ba-9e01-4d50-97f3-e20520ede6f9 3542008 Pterovianaida melchiori sp. n. Body brownish, antennae and legs reddish brown, clothed with long, slender, scattered, suberect hairs. Total length 2.45 mm . Figures 4, 5. (4) Metathoracic scent gland. (5) Pygophore. Head ( Figure 1 ). Slightly granulated, covered with macrochaetae, scattered and slightly curved. Length 0.23 mm , width across eyes 0.3 mm . Interocular space 0.09 mm . Rostrum reaching second abdominal segment. Antennae ( Figure 2 ) covered with suberect hairs that have the same length as width of antennal segment interspersed with hairs twice the length of width of antennae. Length segment I= 0.11 mm ; II= 0.31 mm ; III= 0.33 mm ; IV= 0.37 mm . Thorax. Pronotum length 0.32 mm ; basal width 0.6 mm . Collar presents in anterior and lateral margins a few long erect hairs. Metathoracic scent gland ( Figure 4 ) with anterior branch curved downwards, more developed and raised than posterior branch; the latter slender and directed backwards. Rostral channel faintly developed. Abdomen. Pygophore ( Figure 5 ) narrower than the rest of the abdomen; lateral margins glabrous, posterior margin covered with long, thin, erect hairs interspersed with shorter ones; dorsally at its posterior margin it invaginates and then protrudes as a flat projection; ventrally it forms a uniform lobe. Paramere glabrous, curved, gradually narrows towards the apex which is romus; posterior margin with two lobes at its base, the first more obvious than the second. Material examined. Holotype male , Peru , Ucayali , Kirigueti ( light trap ), 73 ° 07´08"W , 11 ° 38´13"S , August 2004 , J. Williams coll., (slide mounted), in the collection of the Museo de La Plata ( MLP ). Etymology. This species is dedicated to Melchior Borsinger, grandfather of the first author.