Geovan Henrique Corrêa

New record of predatory ladybird beetle (Coleoptera, Coccinellidae) feeding on extrafloral nectaries

New record of predatory ladybird beetle (Coleoptera, Coccinellidae) feeding on extrafloral nectaries. Feeding by Exoplectra miniata (Germar) on extrafloral nectaries of Inga edulis Mart. was observed in Nova Friburgo, Rio de Janeiro, Brazil. This is the first record of this behavior for Exoplectrini.

Feeding by the coccinellid Psyllobora rufosignata (Coleoptera: Coccinellidae) on the Asian grapevine leaf rust fungus Phakopsora euvitis (Basidiomycota: Uredinales)

Abstract Feeding by the coccinellid Psyllobora rufosignata on the rust fungus Phakopsora euvitis was confirmed by observing uredospores of P. euvitis in gut contents of Ps. rufosignata. This is the first record of Ps. rufosignata feeding on P. euvitis and the first record of any Halyziini species feeding on any species of Basidiomycota.

Revisão das espécies brasileiras do gênero Exoplectra Chevrolat (Coleoptera, Coccinellidae, Exoplectrinae, Exoplectrini)

The Brazilian species of Exoplectra Chevrolat, 1844, based on the morphological analysis of external characters and genitalia, are revised. Among the 37 species in the genera, 14 Brazilian species were analysed, including three new species. It was studied the type material of nine of them. The lectotypes of E. angustifrons Weise, 1895, E. calcarata (Germar, 1824), E. coccinea (Fabricius, 1801) and E. miniata (Germar, 1824) are designated. Exoplectra companyoi Mulsant, 1850 is revalidated; E. aenea (Fabricius, 1801), E. bernardinensis Brethes, 1925, E. impotens Mulsant, 1850, E. luteicornis Mulsant, 1850 and E. irregularis (Crotch, 1874) are provisionally removed from the genus. Two new species from Brazil are proposed: E. columba sp. nov., from Parana and E. bimaculata sp. nov., from Amazonas. Dicotomic key for species is presented as well as pictures and illustrations for the main structures used in the identification.

Comportamento e ciclo de vida de Phaedon confinis (Coleoptera, Chrysomelidae) em condições de laboratório

Some aspects of the behavior and biology of Phaedon confinis Klug, 1829 are evaluated on the host plant Senecio brasiliensis (Spreng.) Less. The adult insects were collected in Ponta Grossa (Parana, Brazil) and were kept in an average temperature of 20.03oC. The eggs of P. confinis are elongated and yellowish, with an average total amount of 756.75 ± 50.19 eggs / female with an average of 7.54 ± 0.99 eggs / chutch. The average incubation period was 7.38 ± 0.21 days and the average viability of the eggs were 44.69% ± 7.45. The larva has dark brown coloration, with short bristles distributed on the body and the form was similar in the three larval instars, with size increasing in each ecdisys. The three instars lasted on average 5.81 days, 4.82 days and 21.84 days, respectively; and the average survival reached in the thirth instar was 5.27%. The pupal period presented average duration of 5.58 days and average survival of 3.88%. The average longevity of the females was 229 days and of the males 213.75 days.

Revision of the genus Harpasus Mulsant (Coleoptera, Coccinellidae, Chilocorini)

Harpasus Mulsant, 1850 was studied based on the morphology of the exoskeleton and genitalia. The type material of Harpasus aureus Almeida & Carvalho, 2006, H. quadrifolium Gonzalez, Correa & Almeida, 2008 and a homotype of H. zonatus (Mulsant, 1850) were examined. The lectotype of H. eversmanni (Mulsant, 1850) was designated and two new species were described, Harpasus unifasciatus sp. nov. (Teresopolis, RJ, Brazil) and Harpasus ferrugineus sp. nov. (Puerto Carreno, Vichada, Colombia). Herein a diagnosis for the genus and its seven species, identification key and information about biological aspects are presented.

A new species of Harpasus Mulsant (Coleoptera, Coccinellidae, Chilocorinae) from Peru

A new species from Peru, Harpasus quadrifolium González, Corrêa & Almeida sp.nov. is described and illustrated (type locality: Chanchamayo, Peru).

Figures 12 – 15 In A New Species Of Harpasus Mulsant (Coleoptera, Coccinellidae, Chilocorinae) From Peru

FIGURES 1 – 6. Habitus of Harpasus quadrifolium Gonzalez, Correa & Almeida sp. nov.; 1, dorsal view; 2, ventral view; 3, lateral view; 4, posterior view; 5, frontal view; 6, specimen labels.

COCCINELÍDEOS (INSECTA, COLEOPTERA) PRESENTES EM HORTALIÇAS (PONTA GROSSA - PR)

O presente trabalho teve como principal objetivo realizar um levantamento sistematico dos representantes da familia Coccinellidae que ocorrem em hortalicas da cidade de Ponta Grossa - PR, visto que ha uma escassez de dados referentes a biodiversidade e a distribuicao de tais insetos nessa regiao. As coletas ocorreram em intervalos de quinze dias, aproximadamente, entre julho de 2004 e agosto de 2006, nas hortas do Colegio Agricola Estadual Augusto Ribas (Universidade Estadual de Ponta Grossa). Os coleopteros foram coletados manualmente, sacrificados e etiquetados. Para cada inseto, foram registrados os dados de coleta. No labora-torio, foram triados em morfo-especies, montados e identificados. Foram registrados 318 individuos de coccinelideos sendo onze especies predadoras Cryptolaemus montrouzieri , Scymnus sp., Hyperaspis festiva , Harpasus aureus , Coleomegilla quadrifasciata, Cycloneda sanguinea , Eriopis connexa , Harmonia axyridis , Hippodamia convergens , Olla v-nigrum , Hippodamia sp.; uma especie fitofaga Epilachna paenulata ; e uma micofaga Psyllobora gratiosa . Palavras-chave: Coccinellidae, ocorrencia, bioecologia, Campos Gerais.