Staphylinidae (Coleoptera) Associated to Cattle Dung in Campo Grande, MS, Brazil

Abstract

Neotropical Entomology 31(4): 641-645 (2002) Staphylinidae (Coleoptera) Associados a Fezes Bovinas em Campo Grande, MS RESUMO -Este trabalho foi executado com o objetivo de determinar as espécies locais de estafilinídeos fimícolas, devido à importância destes predadores e ou parasitóides no controle natural de parasitos de bovinos associadas às fezes. Para tanto, massas fecais com 1, 2 e 3 dias de idade foram coletadas semanalmente em uma pastagem de Brachiaria decumbens Stapf, no período de maio de 1990 a abril de 1992. As fezes foram acondicionadas em baldes plásticos, opacos, com capacidade para 15 litros, contendo aberturas lateral e no topo, onde foram fixados frascos para a captura, por um período de 40 dias, dos besouros estafilinídeos presentes nas massas fecais. Após este período a massa fecal e o solo existente nos baldes eram examinados e os insetos remanescentes recolhidos. Foi coletado um total de 13.215 exemplares, pertencendo a 34 espécies e/ou morfo espécies. Foram observados os seguintes doze gêneros: Oxytelus (3 espécies; 70,1%); Falagria (1 sp.; 7,9); Aleochara (4 sp.; 5,8); Philonthus (3 sp.; 5,1); Atheta (2 sp.; 4,0); Cilea (2 sp.; 1,2); Neohypnus (1 sp.; 0,7); Lithocharis (1 sp.; 0,7); Heterothops (2 sp.; 0,6); Somoleptus (1 sp.; 0,08); Dibelonetes (1 sp.; 0,06) e, Dysanellus (1 sp.; 0,04). As sete espécies mais abundantes, constantes e ou freqüentes, seguidas, respectivamente, pelo percentual de indivíduos coletado, foram: Oxytelus sp.1 (38,8%); Oxytelus sp.2 (28,1); Falagria sp. (7,9); Philonthus sp.1 (4,1); Atheta sp.1 (3,7); Aleochara sp.1 (3,6) e Oxytelus sp.3 (3,2). Doze presumíveis espécies (3,6% do total coletado) foram identificadas apenas até família. PALAVRAS-CHAVE: Insecta, coleóptero fimícola, pastagem, diversidade ABSTRACT -This work was carried out in order to determinate the local fimiculous Staphylinidae species due to these predators and or parasites importance on the natural control of the dung associated bovine parasites. For that, fecal masses 1, 2 and 3 days old were weekly collected on a pasture of Brachiaria decumbens Stapf, from May 1990 through April 1992. The feces were conditioned in 15-liter opaque plastic buckets, containing lateral and top openings, where flasks were fastened for capturing Staphylinidae beetles present in these masses, during a 40-day period. After this period the soil and fecal masses from the buckets were examined and the remaining insects collected. A total of 13215 specimens were collected, belonging to 34 species. The following twelve Genera were observed: Oxytelus (3 species; 70.1% of the specimens collected); Falagria (1 sp.; 7.9); Aleochara (4 sp.; 5.8); Philonthus (3 sp.; 5.1); Atheta (2 sp.; 4.0); Cilea (2 sp.; 1.2); Neohypnus (1 sp.; 0.7); Lithocharis (1 sp.; 0.7); Heterothops (2 sp.; 0.6); Somoleptus (1 sp.; 0.08); Dibelonetes (1 sp.; 0.06) and, Dysanellus (1 sp.; 0.04). The seven most abundant, constant, and or frequent species, followed respectively by the percentage of collected specimens, were: Oxytelus sp.1 (38.8%); Oxytelu...

Coleoptera associated with undisturbed cow pats in pastures in Southeastern Brazil

“…Among the Scarabaeidae, Dichotomius bos (Blanchard) was the most frequent and constant species. This and other paracoprid species present natural nocturnal and twilight activity (Koller et al 1999(Koller et al , 2002Aidar et al 2000). Because of this and due to the fact that dung pats were collected during the morning period, the paracoprids and telecoprids frequency and constancy may have been underestimated when compared to those of endocoprids that remain in the dung pat.…”

Species diversity and community structure of rove beetles (Coleoptera: Staphylinidae) attracted to dung of sika deer in coniferous forests of southwest Japan

“…() and Koller et al . (). These studies have suggested that domination by a few oxyteline species sometimes occurs.…”

“…; Davis ; Guimarães & Mendes ; Koller et al . ; Walsh & Posse ; Mendes & Linhares ). Recently, Staphylinidae received special attention for use in forest biodiversity surveys due to their high abundance, diversity, ease of sampling and sensitivity to local environmental conditions (Pohl et al .…”

“…Some predaceous and parasitoid species are thought to act as biological control agents of dung breeding pest flies in Australia, southern Africa and South America (e.g. Macqueen & Beirne 1975;Harris et al 1982;Davis et al 1988;Wright et al 1989;Davis 1994;Guimarães & Mendes 1998;Koller et al 2002;Walsh & Posse 2003;Mendes & Linhares 2006). Recently, Staphylinidae received special attention for use in forest biodiversity surveys due to their high abundance, diversity, ease of sampling and sensitivity to local environmental conditions (Pohl et al 2008;Vásquez-Vélez et al 2010).…”

Insecticide resistance in the horn fly: alternative control strategies

“…Aleochara spp. decreased the population of several fly species developing on bovine faeces, including H. i. exigua (Wright et al , 1989) in Australia and H. irritans in Brazil (Guimarães & Mendes, 1998; Koller et al , 2002; Mariategui et al , 2004). Together with coprophagus colepoterans, histerids were introduced into Australia (Tyndale‐Biscoe, 1996) and the U.S.A. (Fincher, 1995) to evaluate their potential for horn fly control.…”