Ruptitermes pitan Acioli & Constantino, 2015 红头腹爆白蚁

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1. A new interpretation of the defense glands of neotropical Ruptitermes (Isoptera, Termitidae, Apicotermitinae)

   Ana Maria Costa–Leonardo · 2004 · Acervo Digital da Universidade Estadual Paulista (Universidade Estadual Paulista)

   Resumen

   Suicidal altruism has been reported for some species of eusocial insects, in which the individual dies in defense of the society. The termites of the genus Ruptitermes are known for the suicidal behavior of the workers which liberate a sticky defensive secretion by body bursting. In the present paper it is given a new interpretation of the defense glands of Neotropical Ruptitermes based on the morphological analysis of three species collected at Rio Claro, SP, Brazil. Before the current study, the suicidal defensive behavior was attributed to the dehiscence of the salivary gland reservoirs. The defense or dehiscent glands of Neotropical Ruptitermes are pair structures rounded in shape that are independent of the salivary glands. The dehiscent glands consist of multiple secretory units that are kept together by thin connective tissue. Each secretory unit is composed of one cell generally with one peripheral nucleus and characteristic secretion. The three species studied here present some histological differences in the secretory units, probably related to the chemical composition of the secretion.

2. A taxonomic revision of the neotropical termite genus Ruptitermes (Isoptera, Termitidae, Apicotermitinae)

   Agno Nonato Serrão Acioli, Reginaldo Constantino · 2015 · Zootaxa

   Resumen

   The taxonomy of Ruptitermes Mathews 1977 is revised. Nine new species are described: R. araujoi, sp. n. (from Brazil), R. atyra, sp. n. (from Brazil, Peru, and Panama), R. bandeirai, sp. n. (from Brazil), R. cangua, sp. n. (from Brazil), R. kaapora, sp. n. (from Paraguay and Brazil), R. krishnai, sp. n. (from Trinidad), R. maraca, sp. n. (from Brazil), R. piliceps, sp. n. (from Brazil), and R. pitan, sp. n. (from Brazil). Ruptitermes franciscoi (Snyder 1959), new combination, is transferred from Anoplotermes Fr. Müller to Ruptitermes. Ruptitermes proratus Emerson 1949 is placed under the synonymy of R. reconditus (Silvestri, 1901). The genus is redescribed to accommodate all the species included. Ruptitermes arboreus, R. reconditus and R. xanthochiton are redescribed based on the examination of large series. A key to the 13 species of the genus based on the external morphology of workers is provided. The enteric valve armature is described and illustrated for all species except R. kaapora. Distribution maps are presented for all species.

3. Morphological and nest notes of Ruptitermes arboreus (Emerson), an Amazonian soldierless termite

   João Rafael Alves-Oliveira, Valéria Barbosa Rodrigues, Agno Nonato Serrão Acioli, Renato Almeida de Azevedo, Elizabeth Franklin, José Wellington de Morais · 2022 · EntomoBrasilis

   Resumen

   Ruptitermes arboreus (Emerson) is a litter-feeder soldierless termite that builds arboreal cartonated nests. In this paper, we describe and illustrate arboreal nests of R. arboreus, while also describing a fully clayish nest built upon the trunk of a fallen tree. Additionally, we provided physical and populational parameters for two nests. We also illustrate all castes except alates and record two termitophilous species occurring inside the nests.

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