Contribuição ao estudo comparativo da genitália externa em sub-famílias de Reduviidae (Hemiptera-Heteroptera)

Five representatives of the Reduviid sub-families (Microtominae, Piratinae, Ectrichodiinae, Reduvinae and Triatominae), were studied with special reference to the morphology of the male and female genitalia. Drawings were made of the Terminalia from various angles (dorsal, ventral and lateral) to facilitate future studies on comparative morphology and to show the structural modifications present in the material studied. These detailed descriptions are based on the Terminology proposed by DUPUIS (1955). Selected references on previous morphological descriptions of genitalia are given as guide to future works on the group.Cinco representantes de sub-famílias de Reduviidae (Microtominae, Piratinae, Ectrichodiinae, Reduviinae e Triatominae), foram estudados abordando-se principalmente estruturas da genitália dos machos e das fêmeas sob variados ângulos, (dorsal, ventral e de perfil), com o intuito de propiciar condições a um trabalho de morfologia comparada e mostrar as modificações estruturais existentes. É feita uma descrição pormenorizada com indicações nas figuras, usando a terminologia proposta por DUPUIS (1955) e oferecida uma indicação de trabalhos selecionados sobre morfologia da genitália

Estudo da genitália externa masculina de duas espécies de Opisthacidius Berg, 1879 (Hemiptera, Reduviidae, Reduviinae)

In order to stablish new taxonomic characters for the genus Opisthcidius a detailed comparative study of the male external genitalia was performed in O. rubropictus (H. Shaeffer, 1848), the type species, and O. pertinax (Breddin, 1903), mantioned as predators of triatomines. The most representative phallic structures were: the median process of pygophore, the phallosoma struts and the vesica process

Estudos bionômicos de Dipetalogaster maximus (Uhler, 1894) (Hemiptera, Reduviidae, Triatominae): III. Dinâmica populacional

A population dynamics study of D. maximus was caried out under laboratory condictions (28-C e 65% ñ 5% U.R.) and the methodology was the same that have been used for hearing this insects. In order to evaluate the population growth rate of this species, during a 24 months period, five colonies started with a couple recently emerged were observed. Each couple (a male and a female) was mantained in a glass container measuring 20 cm of diameter and 20 cm in height with filter paper on the botton. The insects were monthly feeding with normal mice blood, and at this day the number of eggs, nymphal stages and adults was registered. All graphical representations of the populations growth rate showed the same shape. It was found that the average of nymphal stage represented 64.31% of the hole population whereas the oviposition curved showed to be inverse to this one (28.57%) a small percentage of adults was found: males 3.85% and females 3.12%. In this study observations on the biologycal cycle, longevity and fertility rates were also carried out