Diversidade e sazonalidade de crisomelídeos (Coleoptera: Chrysomelidae) em pomar, no município de Ponta Grossa, Paraná, Brasil

Abstract

RESUMO -Este trabalho teve como objetivo levantar informações sobre os padrões de composição faunística, estrutura da comunidade e sazonalidade de Chrysomelidae num pomar localizado na região dos Campos Gerais do Paraná. Durante cerca de dois anos de amostragem, foram coletados 3.661 coleópteros e, destes, 1.103 crisomelídeos, representando 30,1% dos besouros capturados. Eumolpinae e Galerucinae foram as duas subfamílias que apresentaram maior abundância e riqueza de espécies, sendo que as oito mais representativas no pomar foram: Eumolpinae sp. 7 e Eumolpinae sp. 15, Diabrotica speciosa, Iphimeis dives, Spintherophyta semiaurata, Colaspis sp. 1 e Colaspis sp. 2 e Syphrea sp. 1, representando 91,7% dos indivíduos coletados. Em relação às árvores frutíferas, observou-se que o maior número de insetos foi coletado em laranjeira e tangerineira; a laranjeira teve a maior riqueza de espécies, e o caquizeiro apresentou o maior índice de diversidade. A redução considerável de crisomelídeos no segundo ciclo anual demonstra que a família tem uma oscilação temporal acentuada. A primavera foi a estação de maior abundância nos dois anos de coleta, e os fatores meteorológicos não apresentaram correlação com a abundância de crisomelídeos. Termos para indexação: Análise faunística; sazonalidade; árvores frutíferas; bioecologia; flutuação de crisomelídeos; Campos Gerais do Paraná. CHRYSOMELIDS DIVERSITY AND SEASONAL OCCURRENCE (COLEOPTERA: CHRYSOMELIDAE) IN AN ORCHARD IN PONTA GROSSA DISTRICT, PARANÁ, BRAZILABSTRACT -This study aimed to obtain information about the fauna composition standards, community structure and Chrysomelidae seasonality in an orchard located in Campos Gerais region of Paraná. During the nearly two years of sampling, 3,361 coleopterous were collected, and among these coleopterous, 1,103 belonged to Chrysomelidae family, representing 30.1% of the captured beetles. Eumolpinae and Galerucinae subfamilies showed the biggest species abundance and richness, furthermore, the most representative to the orchard were: Eumolpinae sp. 7 and Eumolpinae sp. 15, Diabrotica speciosa, Iphimeis dives, Spintherophyta semiaurata, Colaspis sp. 1 and Colaspis sp. 2 and Syphrea sp. 1, representing 91.7% of the collected coleopterous. In relation to the fruit trees, it was observed that the biggest insect number was collected on the orange and tangerine trees; orange tree had the biggest species richness index and persimmon tree showed the biggest diversity index. There was a considerable reduction of the Chrysomelidae species on the second annual cycle, and this fact demonstrated that the family has a great temporal variation. Spring was the season with the largest abundance on two years of collection and the meteorological factors did not show any relation to the Chrysomelidae abundance.

Iphimeis dives (Crysomelidae) Beetle occurrence in beans in western Parana State, Brazil

“…Basso et al (1974) also reported that this insect attacks the eggplant (Solanum melongela). Milléo et al (2013) mentioned that I. dives occur very often in various fruit tree orchards (orange, lemon, tangelo, tangerine, persimmon, apple, nectarine, pear, peach). Wiest and Barreto (2012), reporting the insect pests evolution on soybean crops in Mato Grosso state, mentioned that in 1988 I. dives was considered a secondary pest of this crop.…”

“…The Chrysomelidae family consists of various coleopterous, including the Iphimeis dives species (Germar, 1824), also known as vine defoliator beetle or green beetle, which has been reported attacking various fruit trees, some crops and vegetables (Basso et al, 1974;Mariconi, 1962;Milléo et al, 2013;. Wiest and Barreto, 2012).…”