The genus Beardius Reiss et Sublette is emended based on the inclusion of three new species, B. aciculatus, B. lingulatus and B. triangulatus netted along small rivers in the Guanacaste province in NW Costa Rica. B. aciculatus and B. parcus Reiss et Sublette also is present in samples from Vera Cruz, Mexico. A new record of B. parcus from Mato Grosso, Brazil, is given. The female of the genus is described for the first time based on B. parcus Reiss et Sublette. The genus is shown to be closely related to Paratendipes Kieffer. A cladogram is erected showing three species pair with B. aciculatus and B. parcus as the sister group of the remaining. A key to male imagines is given.

Lumbriculus illex sp.n. is described from the Komarovka Stream, north of Vladivostok. It differs from all other congeners in having single-pointed setae and very long spermathecal ampullae. L. sachalinicus Sokolskaya, 1967 is regarded as its closest relative.

Helicopsyche annae sp.n., H. barbata sp.n., H. bifida sp.n., H. jacquemarti sp.n., H. pedunculata sp.n., H. stoltzei sp.n., H. tanzanica sp.n., H. ulugurensis sp.n. and H. usambarensis sp.n. (Trichoptera : Helicopsychidae) are described.All the new species inhabit mountainous areas in eastern Tanzania. Helicopsyche marlieri Jacquemart, 1957 fromeastern Zaïre is redescribed. A key to the species known from East Africa is provided. Distributional and ecologicaldata are discussed and briefly analyzed.

The generic diagnosis of Euryhapsis Oliver and the description of E. cilium Oliver are augmented. E. fuscipropessp.n. is described as male imago and shown to be close to E. cilium. The systematic position of the genera related toBrillia Kieffer and Eurycnemus van der Wulp is discussed. A review and a key to male and female imagines of generaof the Brillia group with single gonostyli are given. The generic diagnoses of the genera Irisobrillia Oliver, TokyobrilliaKobayashi & Sasa, and Pseudobrillia Niitsuma are augmented or emended. The description of the female imago of T. longicosta Oliver is augmented. T. anderseni sp. n. from Tanzania is described as male and female imago, the description of the male imago of I. Tamamegaseta augmented and the female described. The description of the male imago of P. komorii Niitsuma is augmented.

The systematics of phlebotomine sandflies have significantly advanced in the last two decades through the incorporation of a growing body of information on the biology of sandflies and the introduction of new techniques: chromosome analysis, enzyme electrophoresis, detailed morphological studies, laboratory rearing and colonization, and multivariate morphometrics. These techniques have been used mainly in the study of intra-specific variation of vector species. The rôle of sandfty systematics in the epidemiology of leishmaniasis is discussed.