| comparative study of the stridulatorium sulcus, buccula and rostrum of nymphs of triatoma klugi carcavallo et al, triatoma vandae carcavallo et al and triatoma williami galvão et al (hemiptera: reduviidae). | ultrastructural analysis of the ventral region of the head--rostrum, buccula and stridulatorium sulcus--of 1st, 3rd and 5th instars of triatoma klugi carcavallo et al, triatoma vandae carcavallo et al, and triatoma williami galvão et al, are described in here. morphological differences in the analyzed structures for all three triatoma species studied were detected under scanning electron microscopy, allowing their grouping by their morphological similarities. species-specific differences at each ... | 2010 | 20305897 |
| chromosomal characteristics and distribution of constitutive heterochromatin in the matogrossensis and rubrovaria subcomplexes. | since 1966 the triatomines were grouped in complexes and specific subcomplexes. although the complex and subcomplexes not have taxonomic importance, should be monophyletic groups and cytogenetic tools have proved to be of great importance to characterize these species groupings. based on this, this paper aims to describe the chromosomal characteristics and heterochromatic pattern of matogrossensis and rubrovaria subcomplexes, in order to contribute to the taxonomic and evolutionary relationships ... | 2015 | 25917494 |
| [comparative morphology of eggs and nymphs of triatoma vandae carcavallo, jurberg, rocha, galvão, noireau & lent, 2002 and triatoma williami galvão, souza & lima, 1965]. | eggs and all nymphs of these species were studied employing light microscopy (lm) and scanning electron microscopy (sem). the major differences observed by lm in the eggs were related to the presence and the distribution of pores on the surface of their chorion. morphological differences among three nymphal stages (1st, 3rd, and 5th) development of each species were observed. the differential characteristics are chromatic and in the shape of connexival spots. the ultrastructure of the ventral re ... | 2005 | 16302066 |
| spermatogenesis and nucleolar behavior in triatoma vandae and triatoma williami (hemiptera, triatominae). | this study describes spermatogenesis in triatoma vandae and the nucleolar behavior of t. vandae and triatoma williami, with a cytotaxonomic focus. analysis of mitotic and meiotic metaphases of t.vandae confirms the species karyotype. t. vandae presents some characteristics during meiosis that differentiate it from t. williami, including the presence of a chromocenter with two sex chromosomes individualized during early prophase, and the presence of a bi- or tripartite corpuscle inpolyploid nucle ... | 2015 | 26505362 |
| [triatoma vandae sp.n. of the oliveirai complex from the state of mato grosso, brazil (hemiptera: reduviidae: triatominae)]. | there are several specific complexes belonging to the genus triatoma laporte, 1832, which are generally associated to specific geographic areas. recent publications have linked the oliveirai complex to ecosystems of mato grosso, which are also present in other brazilian states and even in other bordering countries as eastern paraguay. the study of the abundant material collected during the last years allowed the description of several new species of the oliveirai complex: t. jurbergi carcavallo, ... | 2002 | 12219129 |