A new species of Plectrocnemia (Trichoptera: Polycentropodidae) from Rovno amber.

A new caddisfly species Plectrocnemia kirmikhia sp. nov. (Polycentropodidae) is described from Priabonian Rovno amber (Upper Eocene, 33.937.8 million years old). Now the family Polycentropodidae is represented in Rovno amber by 16 named species, and the genus Plectrocnemia includes 5 described species in this locality.

New Caddisflies (Insecta, Trichoptera) from the Krabi and Phang Nga Provinces, southern Thailand.

An updated list of the caddisfly species occurring in Krabi and Phang Nga Provinces, southern Thailand, comprises 76 species. Among them, 69 species are found in Krabi Province and 17 in Phang Nga Province, 4 are new for science and 2 new for Thailand. New species from the families Hydroptilidae (Hydroptila nevdomek sp. n.), Polycentropodidae (Nyctiophylax dosyhpor sp. n.), Psychomyiidae (Psychomyia dabudettak sp. n.), and Leptoceridae (Setodes pokamest sp. n.) are described. Hydroptila namcattien Malicky Chantaramongkol 2007 and Setodes kybele Malicky Chantaramongkol 2006 are new species for Thailand. Faunistic considerations and comparisons to other regions of Thailand are provided.

Comparison of sensory structures on the antenna of different species of Philopotamidae (Insecta: Trichoptera).

Structure and distribution of sensilla were studied in sixteen species of the caddisfly family Philopotamidae. Their antennae bear numerous curved trichoid and pseudoplacoid sensilla and fewer coronal, styloconic and chaetoid sensilla on the flagellar segments. The most numerous pseudoplacoid sensilla have non-specific localization. The curved trichoid sensilla form clusters ventrally on each antennal segment. Sensilla belonging to coronal, styloconic and chaetoid types have specific positions. Long grooved trichoid sensilla are located nonspecifically in all the studied species. The average number of sensilla per segment decreases from the proximal to distal part of the flagellum. Scapus and pedicellum are devoid of most types of sensilla, however, they bear the Böhm bristles and long trichoid sensilla. A positive correlation between antenna dimensions and its cuticular structures is found.

A new species of Tinodes (Trichoptera: Psychomyiidae) from Madagascar.

The genus Tinodes (Psychomyiidae) has a wide distribution in the Eastern Hemisphere with the richest species assemblages in the Oriental and southern parts of the Western Palearctic regions. In comparison with the species assemblages in those regions, diversity of the African species of this genus is relatively poor. A brief review of the 10 then-known Afrotropical species belonging to the genus Tinodes was published by Johanson & Oláh (2007) together with descriptions of 14 new species. Some of these new species came from the Eastern African Arc of crystalline mountains, although 5 species have been found in Madagascar and the Comoros where no species of the genus Tinodes have been known previously. These new findings suggest continuing poor knowledge of the Afrotropical faunas where many species escaped descriptions until the beginning of the XXI century.

New data on caddisflies (Insecta: Trichoptera) from Lombok (Indonesia) with descriptions of two new species.

Knowledge of caddisflies of the Sunda Islands was insufficiently known until recent times; a survey of the caddis fauna of this area was given by Malicky (2010) and some more data were published recently (Malicky et al. 2011). A summary on the particular features of Trichoptera from 3 adjacent islands, Bali, Lombok, and Java, were given by Malicky et al. 2014. These were the first surveys of the local caddisfly fauna of Lombok, listing 60 species and anticipating that more species should occur there. It was shown that the caddisfly fauna of these islands is largely homogenous and there are not sufficient differences between Bali and Lombok to support the hypothesis of Wallace's line (Malicky et al. 2014). The comparative analysis showed continuous impoverishment of the caddis fauna from the Asian continent over the chain of islands from west to east. Unfortunately, the Trichoptera fauna of the easternmost Sunda Islands, Sumba, Sumbawa, Flores, Timor, and the Moluccas is almost unstudied. The Trichoptera fauna of these islands is, according to present knowledge, Asian. Since the previous material from Lombok was collected only once at the end of the wet season, it was necessary to have more data from other seasons. Hence we made another effort to sample caddisflies in this area. As a result, 8 more species were found, 2 of which were new for science. The updated list (Table 1) includes now 68 species.

Three new caddisflies species of the fossil genus Archaeotinodes (Insecta: Trichoptera: Ecnomidae) from the Baltic Amber.

Three new caddisflies species of the fossil genus Archaeotinodes: Archaeotinodes petropolitana sp. nov., Archaeotinodes regiomontana sp. nov., and Archaeotinodes rossica sp. nov. from the Baltic amber (Upper Eocene, 40 million years old), are described and illustrated.

New data on Rhyacophila (Trichoptera: Rhyacophilidae) from West Malaysia and Indonesia (Lombok and Bali) with descriptions of two new species.

A new species, Rhyacophila langkawia sp. n., belonging to the R. curvata Group sensu Schmid (1970) is described. The samples provide also material of the previously undescribed species cited by Schmid (1970) as R. schmidi, a nomen nudum; this species is described as R. schmidirossia sp. n., also in the R. curvata Group. Other sampled species were Rhyacophila curvata Morton, recorded for the first time from Negeri Sembilan (West Malaysia) and Lombok (Indonesia); Rhyacophila stheneboia Malicky & Prommi (Pahang and Negeri Sembilan, West Malaysia), and Rhyacophila anakbatukau Malicky, recorded for the first time from Lombok (Indonesia). Updated lists of the Rhyacophila species found in West Malaysia and Indonesia are provided.

Identification of a sex pheromone produced by sternal glands in females of the caddisfly Molanna angustata curtis.

In the caddisfly Molanna angustata, females produce a sex pheromone in glands with openings on the fifth sternite. Gas chromatographic analyses of pheromone gland extracts with electroantennographic detection revealed four major compounds that stimulated male antennae. These compounds were identified by means of gas chromatography-mass spectrometry and enantioselective gas chromatography as heptan-2-one, (S)-heptan-2-ol, nonan-2-one, and (S)-nonan-2-ol in the approximate ratio of 1:1:4:10, respectively. Field tests showed that the mixture of the two alcohols was attractive to males whereas addition of the corresponding ketones reduced trap catches. The sex pheromone of M. angustata, a species in the family Molannidae within the suborder Integripalpia, is similar to the pheromones or pheromone-like compounds previously reported from six other trichopteran families, including members of the basal suborder Annulipalpia. This suggests that minimal evolutionary change of the pheromone chemistry has taken place within the leptoceroid branch of integripalpian Trichoptera compared to the ancestral character state.