Materials for the study of the fauna of Coleoptera specially protected natural areas of the Altai territory (the mouth of the Peschanaya river)

The Altai Territory is notable for its poorly studied entomofauna of specially protected natural areas. The work first provides the results of the study of the fauna of necrophilous Coleoptera on the territory of the natural monument "The Mouth of the Peschanaya River". The collection was conducted with the help of soil traps with bait. 51 species from 7 Coleptera families were found. Carabidae and species of other families not belonging to the ecological group under study were not taken into account. Staphylinidae was the most numerous in terms of species (54,9% of the total number of species), significantly inferior to Silphidae and Scarabaeidae (13,7% and 9,8% respectively), the share of the remaining four families (Histeridae, Leiodidae, Hydrophilidae, Dermestidae) was 21,6% in total. Silphidae (Nicrophorus vespillo, Oiceoptoma thoracicum, etc.) dominated the numbers. The dominant species (Nicrophorus vespilloides) belongs to the same family. Common and numerous were Anoplotrupes stercorosus, Aphodius rectus (Scarabaeidae), Sciodrepoides watsoni (Leiodidae). Of staphilinids, the most numerous in terms of species were not dominant, only three species (Philonthus cruentatus, Aleochara curtula, Drusilla canaliculata) had the second class of abundance, the rest were single species, from 1 to 4 individuals. In Staphylinidae, in addition to the usual herpetobionic and necrophilous species, species characteristic of the banks of reservoirs (Philonthus quisquiliarius, Bledius sp.), fungi (Oxyporus maxillosus, Gyrophena sp.) were present in the collections. An assessment of species richness, dominance and equilibrium in the community of necrophilous Coleoptera showed average values of Shannon index (H = 2,2), Berger-Parker index (d = 0, 0,43) and Pielou’s evenness index (E = 0, 0,57).

Los Staphylinidae (Coleoptera) sarcosaprófilos del Parque Natural de Sant Llorenç del Munt i l’Obac, Barcelona, España

Resumen Se presentan datos relativos a la comunidad de Staphylinidae (Coleoptera) sarcosaprófilos asociada a carroña de cerdo en el Parque Natural de Sant Llorenç del Munt i l’Obac, Barcelona, nordeste de la península ibérica. Para el estudio se emplearon cuatro trampas cebadas con restos de cerdo (costilla de cerdo) colocados en agua, situadas en cuatro hábitats diferentes, y colgadas a 1,5 m del suelo. Se tomaron 68 muestras desde febrero hasta diciembre de 2018. Se capturaron 843 individuos pertenecientes a 17 especies y, 5 subfamilias (10 especies de Aleocharinae, 3 de Staphylininae, 2 de Omaliinae, 1 de Proteininae y 1 de Tachyporinae), presentando su mayor abundancia en los meses de verano (junio, julio, agosto). Tres especies resultaron ser las más abundantes y más frecuentes, Aleochara (Aleochara) curtula (Goeze, 1777), Aleochara (Aleochara) lata Gravenhorst, 1802 y Aleochara (Xenochara) haematoptera. De cada especie se presenta el material estudiado, datos ecológicos, abundancia, frecuencia y su corología mundial e ibérica. De las 17 especies encontradas, 6 son nuevas citas para la Comunidad Autónoma de Cataluña: Aleochara (Heterochara) clavicornis L Redtenbacher, 1849, A.(Xenochara) sparsa Heer, 1839, Haploglossa villosula (Stephens, 1832), Proteinus atomarius Erichson, 1840, Philonthus (Philonthus) virgo (Gravenhorst, 1802) y Mycetoporus longulus Mannerheim, 1830. Philonthus (Philonthus) succicola Thomson, 1860, ya citada de la Comunidad, es nueva cita para Barcelona. A bstract Data regarding the community of sarcosaprophilous Staphylinidae (Coleoptera) associated with pig carcass in Sant Llorenç del Munt i L’Obac Natural Park Barcelona, northwest of the Iberian Peninsula are presented. For the study, 4 traps were used, baited with pig remains placed in water, located in 4 different habitats, hanging 1.5 m from the ground. 68 samples were taken from february to december 2018. 843 individuals belonging to 17 species, belonging to 5 subfamilies (10 Aleocharinae, 3 Staphylininae, 2 Omaliinae, 1 Proteininae, and 1 Tachyporinae) were captured, presenting their greatest abundance in the months of summer (june, july, august). Three species were found to be the most abundant and most frequent, Aleochara (Aleochara) curtula (Goeze, 1777), Aleochara (Aleochara) lata Gravenhorst, 1802 and Aleochara (Xenochara) haematoptera Kraatz, 1858. For each species, the material studied, ecological data, abundance, frequency and its world and Iberian chorology are presented. Among the 17 species found, 6 are new records for the autonomous community of Catalonia: (Aleochara (Heterochara) clavicornis L. Redtenbacher, 1849, A. (Xenochara) sparsa Heer, 1839, Haploglossavillosula (Stephens, 1832), Proteinusatomarius Erichson, 1840, Philonthus (Philonthus) virgo (Gravenhorst, 1802) and Mycetoporuslongulus Mannerheim, 1830. Philonthus Philonthus) succicola Thomson, 1860, already from the community, represent a new record for Barcelona.

VARIATION OF SPERM PRECEDENCE IN THE ROVE BEETLE ALEOCHARA CURTULA (COLEOPTERA: STAPHYLINIDAE)

In order to quantify the outcome of sperm competition in the mating system of the rove beetle Aleochara curtula we performed three different mating experiment series. Paternity was established by DNA fingerprinting with oligonucleotide probes. We found a precedence of the last male with a proportion of eggs fathered by the last male of 87% (median). Nevertheless, we observed a large variation of P2-values in A. curtula and cases of mixed paternity were documented as well as cases of 100% or 0% paternity of the last male. The variation of P2-values correlates with the efficiency of spermatophore and sperm transfer.