Contents

Starý, J.
    New species of the Trichocera (Metatrichocera) saltator species group (Diptera: Trichoceridae)

Jäch, M.A.
    Nucleotops endroedyyoungai sp.nov. (Coleoptera: Hydraenidae)

Kodada, J. & Jäch, M.A.
    Roraima carinata gen. et sp.nov. and Neblinagena doylei sp.nov., two Larainae from Mount Roraima, Venezuela (Coleoptera: Elmidae)

Čiampor, F. Jr.
    Homalosolus zitnanskae sp.nov. from Borneo (Coleoptera: Elmidae)

Belcari, A.
    Ethological and morphological notes on Tomosvaryella frontata (Diptera: Pipunculidae), parasitoid of the Tamarix leafhopper, Opsius stactogalus

Hebauer, F. & Hendrich, L.
    Two new species of Helochares from Northern Australia (Coleoptera: Hydrophilidae)

Hernando, C.
    Duvalius lindbergi orbayi ssp.nov. from the Karakorum in Pakistan (Coleoptera, Carabidae)

Zettel, H.
    Aphelocheirus kodadai sp.nov. aus Borneo (Heteroptera: Aphelocheiridae)

Schillhammer, H.
    Nomenclatoral and distributional notes on the subfamily Staphylininae (Coleoptera: Staphy-linidae)

Sacchetti, P., Belcari, A., Romani, R., Isidoro, N. & Bin, F.
    External morphology and ultrastructure of male antennal glands in two diapriids (Hymenoptera: Diapriidae)

Thiéry, A., Martin, C., Malosse, Ch. & Thiéry, D.
    Morphology and chemical characterization of the egg chorion in tingids: a case study of the plane tree Corythucha ciliata (Hemiptera: Tingidae)

Borovec, R.
    Four new species of Trachyphloeus (Coleoptera: Curculionidae)

Starý, J. 1999. New species of the Trichocera (Metatrichocera) saltator species group (Diptera: Trichoceridae). Entomol. Probl. 30(1): 1-10.

Four species of the Trichocera saltator species group of the subgenus Metatrichocera Dahl, 1966, as re-defined quite recently (Starý 1998), are described from Central Europe, viz. T. (M.) calva sp.nov., T. (M.) montana sp.nov., T. (M.) bilobata sp.nov. and T. (M.) antennata sp.nov. Both male and female terminalia of all the species are illustrated. A prelimi-nary key is appended to Czech and Slovak species of the T. (M.) saltator species group.

Jäch, M.A. 1999. Nucleotops endroedyyoungai sp.nov. (Coleoptera: Hydraenidae). Entomol. Probl. 30(1): 11-12.

Nucleotops endroedyyoungai is described from South Africa. It is dedicated to the late Sebastian Endrödy-Younga.

Kodada, J. & Jäch, M.A. 1999. Roraima carinata gen. et sp.nov. and Neblinagena doylei sp.nov., two Larainae from Mount Roraima, Venezuela (Coleoptera: Elmidae). Entomol. Probl. 30(1): 13-30.

A new genus and species, Roraima cari-nata, and a new species, Neblinagena doylei, both from Mount Roraima in Venezuela, are described and illustrated. The genus Roraima is a very distinctive genus which can be readily distinguished from any of the known laraine genera by the shape and carination of the pronotum and by the unique forking and fusion of the medial field veins of the hind wing. Neblinagena doylei is recognised by narrow pronotal depressions, feeble sublateral pronotal carinae, shallowly impressed elytral striae with small and widely spaced punctures and by the penis being subparallel in apical half.

Čiampor, F. Jr. 1999. Homalosolus zitnanskae sp.nov. from Borneo (Coleoptera: Elmidae). Entomol. Probl. 30(1): 31-34.

A new riffle beetle species Homalosolus zitnanskae sp.nov., belonging to the tribe Macronychini, is described from the Borneo. It differs from known species of the genus Homalosolus Jäch & Kodada in: smaller size; anterior angles of pronotum not so acuminate; apex of elytra more rounded; ventrites as well as intercoxal process more flattend; metasternum in posterior half without distinct medial depression; lateral margins of elytra more distinctly serrate; male genitalia distinctly different in: rounded, shovel-like apex, ejaculatory duct without spines.

Belcari, A. 1999. Ethological and morphological notes on Tomosvaryella frontata (Diptera: Pipunculidae), parasitoid of the Tamarix leafhopper, Opsius stactogalus. Entomol. Probl. 30(1): 35-46.

Ethological and morphological observations carried out on a pipunculid fly Tomosvaryella frontata, living on the Tamarix leafhopper, Opsius stactogalus are presented. The pre-mating phase is characterized by a long period in which the couple fly for a long time close to the leaves; mating is repeated and characterized in both sexes by intense abdominal vibrations of short duration. Concerning the larval morphology, the young larva is maggot-like with well developed spinules on each thoracic and abdominal segment and a terminal vesicle. The head is undifferentiated with a simple mouth opening with no labial structures and an indistinct cephalopharyngeal skeleton. No spiracular openings are present. The full-grown larva shows a typical cuticle with characteristic outgrowths. The head is markedly bilobate with an antennomaxillary complex at its apex. Maxillary sensory structure shows different sensilla at the tip. The external respiratory system has a pair of anterior spiracles and a pair of posterior spiracles arranged on a sclerotized plate. Morphological features present in both instars are presented and related to their behaviour. Finally, modifications in parasitized leafhoppers are discussed.

Hebauer, F. & Hendrich, L. 1999. Two new species of Helochares from Northern Australia (Coleoptera: Hydrophilidae). Entomol. Probl. 30(1): 47-51.

Helochares (Hydrobaticus) nigripalpis sp.nov. and Helochares (Hydrobaticus) wattsi sp.nov. are described from the Kakadu National Park in the Northern Territories of Australia. The first is well characterised by its black ultimate joint of the maxillary palpi, the dense and coarse surface punctation and the male genitalia. The latter species differs from all small Australian species of the genus known so far by its broad body shape, the black labrum and the male genitalia. Some details about their habitats and an updated key to the Australian species of the subgenus Hydrobaticus are also included.

Hernando, C. 1999. Duvalius lindbergi orbayi ssp.nov. from the Karakorum in Pakistan (Coleoptera, Carabidae). Entomol. Probl. 30(1): 53-56.

A new subspecies of the cave ground-beetle from Afghanistan Duvalius lindbergi Coiffait, 1961 is described, Duvalius lindbergi orbayi ssp.nov. It was found in the mountain system of the Karakorum in Pakistan, and is well characterised by its external morphology, although with an almost identical aedeagal structure to that of the nominal form. This new subspecies, which is the first Duvalius known from Pakistan, was found at 2,350 m in an endogenous environment at more than 800 km NE of the previous known localities of the species.

Zettel, H. 1999. Aphelocheirus kodadai sp.nov. aus Borneo (Heteroptera: Aphelocheiridae). Entomol. Probl. 30(1): 57-59.

Aphelocheirus kodadai sp.nov. from the Crocker Range, Sabah, Borneo, is described as new. The new species is closely related with A. minor Polhemus & Polhemus, 1988, and A. breviculus Nieser & Chen, 1991, both endemic in Borneo, from which it differs in the shape of the pronotum and the embolium, in the length of the rostrum, in the female sternite 7, and (from A. minor) in the male parameres. An identification key to the Aphelocheirus species of Borneo is provided.

Zettel, H. 1999. Aphelocheirus kodadai sp.nov. aus Borneo (Heteroptera: Aphelocheiridae). Entomol. Probl. 30(1): 57-59.

Aphelocheirus kodadai sp.nov. from the Crocker Range, Sabah, Borneo, is described as new. The new species is closely related with A. minor Polhemus & Polhemus, 1988, and A. breviculus Nieser & Chen, 1991, both endemic in Borneo, from which it differs in the shape of the pronotum and the embolium, in the length of the rostrum, in the female sternite 7, and (from A. minor) in the male parameres. An identification key to the Aphelocheirus species of Borneo is provided.

Schillhammer, H. 1999. Nomenclatoral and distributional notes on the subfamily Staphylininae (Coleoptera: Staphy-linidae). Entomol. Probl. 30(1): 61-62.

Thirty-two new synonymies and nine new combinations within the subfamily Staphy-lininae are proposed. Gabrius trossuloides Coiffait, 1966 (nec Cameron, 1933) is renamed G. trossuliformis. Revised faunistic data for Philonthus peliomerus Kraatz are provided.

Sacchetti, P., Belcari, A., Romani, R., Isidoro, N. & Bin, F. 1999. External morphology and ultrastructure of male antennal glands in two diapriids (Hymenoptera: Diapriidae).Entomol. Probl. 30(1): 63-71.

The ultrastructure of "sex segments" of male antennae have been studied in two diapriids representative of the subfamily Diapriinae, Trichopria drosophilae and Coptera occidentalis, using scanning and transmission electron microscopes. T. drosophilae has one modified antennomere (A4) bearing a carina while C. occidentalis bears a peg-like process on A3 and a carina on A4. In both species all these external structures can be considered as release structures, being associated with epidermal glands. The glandular complexes of both species are formed by bicellular units composed of a class 3 secretory cell and a canal cell. Ultrastructural observations did not reveal noticeable differences in cytological features of the three glands. Moreover, C. occidentalis male antennal glands are provided with structures to store the secretion. They consist of a large reservoir in the A3 glandular complex and of a small bulb-like reservoir in each of the secretory units in the A4 gland. All the release structures were found to be covered by an abundant and viscous thread-like secretion. The possible involvement of male antennal glands in sex recognition and the diversity in the skeletal morphology of sex segments in other diapriids are shown and discussed.

Thiéry, A., Martin, C., Malosse, Ch. & Thiéry, D. 1999. Morphology and chemical characterization of the egg chorion in tingids: a case study of the plane tree Corythucha ciliata (Hemiptera: Tingidae). Entomol. Probl. 30(1): 73-82.

The sycamore lace bug Corythucha ciliata (Say) is a subsocial phytophagous species. The egg morphology and chorionic architecture of this tingid, as well as oviposition, are described. The egg shape and specialized opercular region are close to ova of other known species belonging to the genus Corythucha. Beside the morphological characterization of the eggshell structure, Dichloromethane extracts of the egg surface have been performed. 20 compounds have been isolated, including several saturated and unsaturated C16-C18 fatty acids already identified in the eggs of other insect species. The biological activity of the identified compounds have not been assayed in this work.

Borovec, R. 1999. Four new species of Trachyphloeus (Coleoptera: Curculionidae). Entomol. Probl. 30(1): 83-90.

Four new species of the genus Trachyphloeus Germar , 1817 are described, illustrated and compared to similar species: Trachy-phloeus corsicus sp.nov. from Corsica, T. tenuis sp.nov. from Mallorca and T. pelletieri sp.nov. from Algeria belonging to the group of species around T. laticollis Boheman, 1843, and T. solitus sp.nov. from Spain belonging to the subgenus Pseudolacor-dairius Escalera, 1923. Keys to related species are included.