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The architectural features of the five Nasutitermes species occurring in a Neotropical floodplain (varzea) forest on llha de
Marchantaria in central Amazonia are described: external nest and runway architecture, nest volume, nest height above ground, nesting trees, degree of polycalism). These characteristics are used to build a tentative field key to the nest-building
termite species which should be tested for its usefulness for ecological studies of central Amazonian termites.
Four new species of scytodid spiders from Brazil are described: Scytodes becki sp.n. from Niquelandia and Scytodes
eleonorae sp.n. from Sao Domingos, both in the state of Goias; Scytodes skuki sp.n. from Aripuana, Mato Grosso and
Scytodes strussmannae sp.n. from Xapuri, Acre. Together with the synanthropic species S. globula Nicolet and the Brazilian species S. itapevi Brescovit & Rheims these four new species form a distinct group within the Neotropical Scytodes, herein named "globula group" New records for S. globula and S. itapevi are also reported.
The wolf spider genus Aglaoctenus is revised, and of the 12 original species only two are considered valid: A . castaneus
(Mello-Leitáo) and A. lagotis (Holmberg). Eight specific names are considered junior synonyms of A. lagotis: Porrimosa
granadensis (Keyserling), P. freiburguensis (Keyserling), P. diversa (O.P.-Cambridge), P. obscura (Keyserling), P. glieschi
(Mello-Leitáo), P. callipoda (Mello-Leitáo), Aglaoctenus bifasciatus Tullgren and A. harknessi (Chamberlin). Aglaoctenus
guianensis Caporiacco, described based on an immature specimen from French Guyana is considered species inquirenda
and Porrimosa securifera Tullgren, based on a female specimen from Argentina is transferred to Orinocosa Chamberlin.
The Aglaoctenus species are distributed exclusively in South America, except Chile.