Tag Archives: Lythrum salicaria

Arboretum: Giant Water Bugs and Biocontrol Beetles

Exploring in the meadow of the Arnold Arboretum last weekend, I came upon this giant water bug (Belostoma sp.). This large insect — they named it “giant” for a reason — preys on creatures as large as small fish. It can inflict a very painful bite, and so is also called toe biter. Thanks to John Epler for the ID.

Giant water bug
Giant water bug

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Arboretum: Southern Magnolia, Wildflowers, and Parasitic Plants

Can Southern magnolia trees survive in Boston? I thought not. Even the Arboretum’s own Bulletin of Popular Information, didn’t think so, saying in May of 1911 that Magnolia grandiflora is “not hardy at the north.” That changed in 1983, when a tree was planted behind the Visitor Center. More accessible, however, is a tree just off Meadow Road behind a red maple. Planted in 1998, this cultivar — Bracken’s Brown Beauty — is doing very well.

Southern magnolia flower
Southern magnolia flower (accession 278-98-A)

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Giant Black Beetles at Jamaica Pond

We came across two large black beetles yesterday just off the path around Jamaica Pond. The beetles were possibly engaged in the act of mating. If so, the female beetle was much larger than the male and her orange belly was showing.

Pair of broad-necked root borer beetles
Pair of broad-necked root borer beetles

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