A new species of Triatominae from Tamil Nadu, India

Abstract

Abstract. A new species of the genus Linshcosteus Distant, 1904 (Hemiptera: Reduviidae: Triatominae) is described from specimens collected near Kalakkadu, Tamil Nadu state, southern India. Specimens were found in deep crevices between rocks, in a region of semi-arid scrub jungle. The distinctiveness of the new species was demonstrated by a morphometric analysis including the five previously described species of Linshcosteus, all from India. Nine measurements of the head were used in an isometric size-free principal component analysis. In terms of discrete morphology the new species, Linshcosteus karupus sp.n. GalvaÄ o, Patterson, Rocha & Jurberg differs from the most similar one, L. kali Lent & Wygodzinsky, 1979, by its very prominent anterolateral projections of the pronotum, by the length to width ratio of the pronotum, by the pilosity of the head and several other characters, including phallic structures. A revised key is presented for the six species of the genus.

An Insight into the Sialomes of Bloodsucking Heteroptera

“…Notice that the sialome of Oncopeltus, a member of the Pentatomomorpha-the most closely related suborder to the Cimicomorpha (see http://tolweb.org/Heteroptera/10805) [76,167]-revealed virtually nothing in common with the Cimicomorpha, and the Cimicidae sialome also revealed little in common with the Reduviidae, perhaps as expected by the divergence of these families (see http://tolweb.org/Cimicomorpha/10817). Zooming-in on the Triatomine group, it will be interesting in the future to describe the sialomes of additional tribes of the Triatomine, such as the Bolboderini, which includes bugs that feed on insect hemolymph, the Cavernicolini that are associated with bats, and members of the Linshcosteus genus that are found in India [168] and could be divergent members. Zooming a little out and as indicated by Schofield and Galvão [49], facultative blood feeding is found in non-Triatominae members of the Reduviidae, including the Emesinae, Harpactorinae, Peiratinae, Physoderinae, and Reduviinae.…”

Estudos sobre domiciliação espontânea em galinheiros experimentais por população silvestre de triatomíneos no Município de Araraquara, São Paulo, no período de XI/1998 a III/2002

“…Porém, é de nosso entendimento, seguir o proposto por BARRETTO (1979BARRETTO ( , 1985 e admitir esse ciclo como parte integrante do ciclo doméstico. CARCAVALLO et al, 2000CARCAVALLO et al, , 2001SCHOFIELD 2000;SILVEIRA 2000;GALVÃO et al 2002;HYPSA et al 2002;GALVÃO et al 2003).…”

“…Podemos referir-nos ainda, ao fenômeno denominado por RYCKMAN (1951) cleptohemodeipnonismo (RABINOVICH 1972;SCHOFIELD 1988SCHOFIELD , 1994SCHOFIELD , 2000CARCAVALLO et al, 1999b;. de Chagas humana (WEINMAN D et al, 1978;LENT e WYGODZINSKY, 1979;GORLA et al, 1997;CARCAVALLO et al, 2000b;GALVÃO et al 2002).…”