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Superfamília ICHNEUMONOIDEA - Acervo Digital de Obras Especiais

Superfamília ICHNEUMONOIDEA - Acervo Digital de Obras Especiais

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144 INSETOS DO BRASIL<br />

TOWNES (1949), tratando dos hábitos <strong>de</strong> Stephanidae diz<br />

o seguinte:<br />

"Stephanids are often collected on <strong>de</strong>ad tree trunks.<br />

Because of this and their habitus, the species are generally<br />

presumed to be parasites of wood boring Coleoptera. Other<br />

possible hosts are Aculeate Hymenoptera nesting in wood.<br />

The only known rearing record is of a short series of Diastephanus<br />

leucostictum in the United States National Museum<br />

from Agrilus kalshoveni (Buprestidae) in Java. The adults<br />

are sluggish and awkward in walking and slow in flight".<br />

Trabalho bem interessante sôbre os hábitos <strong>de</strong> um Estefani<strong>de</strong>o<br />

da Austrália é o <strong>de</strong> RODD (1951). Segundo êle, o inseto<br />

parasita larvas <strong>de</strong> Bostrychidae.<br />

Na figura 61 dou a cópia fotográfica das figs. 1-3 dêsse<br />

trabalho, nas quais se vêm 3 tempos do ato da perfuração <strong>de</strong><br />

um tronco, <strong>de</strong>ntro do qual havia larvas brocas daquele Coleoptero.<br />

Fig. 61 - Três tempos do ato da perfuração <strong>de</strong> um<br />

tronco pelo ovipositor <strong>de</strong> um Stephanus (De Rodd,<br />

1951, figs. 1-3, cóp. fotogr, <strong>de</strong> <strong>de</strong> G. Durend).

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