Wolfram Mey

Global diversity of butterflies (Lepidotera) in freshwater

In Lepidoptera, the subfamily Acentropinae and Pyraustinae of Crambidae (Pyraloidea) and the family Arctiidae (Noctuoidea) contain species with true aquatic larvae, which live submerged during larval development. In Pyraustinae and Arctiidae only a few species exhibit an aquatic life-history. From the latter, aquatic larvae are known from the Neotropical genus Paracles. The number of aquatic Paracles species is unknown. The Acentropinae are predominantly aquatic. They are distributed worldwide, and reach the highest diversity in tropical regions of South East Asia/Malesia and in the Neotropical Region. At present, the Acentropinae include a total of 50 genera and 737 described species. All genera, assigned to the subfamily, are listed in a table, and the numbers of included species are indicated. The taxonomy and phylogeney of the genera are inadequately known. The species have a minor economic importance, however, they are very sensitive to degradation of water quality and habitat destruction.

Phylogeny of the Arctopsyche composita‐group (Insecta, Trichoptera: Arctopsychidae) with the description of three new species from Vietnam

Arctopsyche mesogona sp.n., A. vietnamensis sp.n. and A. cervinata sp.n. are newly described from the Fan Si Pan Mountain Range of North Vietnam. These species belong to the compasita—group, which is a Palaearctic faunal element in an area which is conventionally regarded as part of the Oriental Region. Phylogenetic relationships of the species are examined.

Rhyacopsyche Mutisi n. sp. ‐ a new microcaddisfly with an unusual larva from Colombia (trichoptera, hydroptilidae)

Collecting of caddisflies in Colombia resulted in the discovery of an unde‐scribed species of Rhyacopsyche. The larvae and pupae were firmly attached with long, silken threads to stones in a mountain brook. The pupae were floating freely in the current. On the basis of pharate adults the species is described as Rhyacopsyche mutisi n. sp. The description provides an expanded definition of the genus.

Synopsis of the Ethmiinae (Lepidoptera, Gelechioidea: Depressariidae) of the Afrotropical Region and descriptions of new species

In Africa south of the Sahara 55 valid species of the subfamily Ethmiinae have been recognised to date. These species are listed alphabetically including important synonyms. The country of origin and the depository of the type material are indicated. In this article seven new species are communicated from Kenya, Namibia and South Africa. They are described as Ethmia aberdaresi sp. n., Ethmia anikini sp. n., Ethmia kagamegensis sp. n., Ethmia karasbergensis sp. n., Ethmia kunenica sp. n., Ethmia kuisibi sp. n., and Ethmia fluviatilis sp. n. The adult moths of the new species are illustrated in colour. The male and female genitalia are depicted as black/white photos including line drawings of lateral and dorsal views of male genitalia. The systematic position of the new species is briefly discussed.

Three new species of the genus Arctopsyche McLachlan, 1862 from Asia (Insecta: Trichoptera: Arctopsychidae)

Three new species of Arctopsyche McLachlan, 1862 are described, A. wuyshanensis sp. n. from mainland China, A. hsui sp. n. from Taiwan and A. loeffleri sp. n. from Vietnam. The male genitalia are illustrated and the relationships of the new species within the composita group are discussed.

On a Small Collection of Caddisflies (Insecta: Trichoptera) from Sachalin, USSR

Collecting of caddisflies on Sachalin Island in 1989 yielded 24 species. Most of them are recorded from the island for the first time. Two species proved to be new to science. They are described as Lype excisa sp. n. and Mystacides pacifica sp. n. Additional information on morphological variation of some species is also presented.

Maesaipsyche mekongensis sp. n. – the Third Species of the Genus from South-East Asia (Trichoptera, Arctopsychidae)

Maesaipsyche mekongensis sp. n. is described from Laos. The type series was collected near the Mekong River, which is suggestive of a potamobiontic habitat of the larvae. The male genitalic apparatus is illustrated.

A Second Species of Apatidelia Mosely from China (Trichoptera, Apataniidae)

Apatidelia gansuensis sp. n. is described from Ganzu Prov. on the basis of two males. The genitalic apparatus is illustrated.

Setodes fluviovivens sp.n. ‐ a New Potamobiontic species from the Mekong River of Kambodia (Trichoptera: Leptoceridae)

Setodes fluviovivens sp. n. is described and figured from material collected 1914 on the Mekong River in Kambodia.