Category: insects (Page 66 of 88)

Bug of the Week: Pallid-winged Grasshoppers

Grasshoppers are moving in Arizona right now.

One of the most common species is the native pallid-winged grasshopper, Trimerotropis pallidipennis.

It can be difficult to identify grasshoppers because members of a single species vary a lot in color. The two grasshoppers in the photographs are within a few feet of each other, but notice how much darker the top one’s wing bands are (it isn’t just the lighting). Grasshoppers often blend into the background so well that you don’t see them until they jump and fly.

Pallid grasshoppers feed on desert grasses and when the grasses dry up, they move or “disperse” to areas with more food. According to this article, pallid grasshoppers have been found flying at altitudes of 3000-5000 feet for long distances. In one record in 1966 pallid grasshoppers from the western United States were found in Hawaii. That’s a long flight!

Are grasshoppers still active where you live? What colors do you see?

Bug of the Week: Western Spotted Cucumber Beetle

Today’s beetle has a name longer than it is: the Western Spotted Cucumber Beetle, Diabrotica undecimpunctata undecimpunctata.

This particular subspecies is only found in Arizona, California, and Oregon.

The scientific name undecimpunctata refers to the Latin for “11 spots.” As my husband pointed out, this one looks more like it has 12 spots.

Does anyone recognize the flower?

Bug of the Week: Sap Beetles

Lately we’ve had a couple of good wind storms that have knocked the last few grapefruit off the tree.

Taking advantage of the damaged and rotting fruit are some tiny beetles.

The first thing you notice about these beetles is that they tend to shun the light.

As soon as I opened the fruit, the beetles began to run. I got a lot of photographs of the bottoms of beetles disappearing out of view.

Called sap beetles, or sometimes picnic beetles, they feed inside spoiled, rotting fruit.

There goes one now. You might also notice that its hardened top wings, called elytra, are shorter than its abdomen. Also notice the nobs on the ends of the antennae. Those are characteristic of Nitidulidae, the sap beetle family.

This fruit contained two different kinds.

Can you see the similarities between the two different types of beetles?

As scavengers, sap beetles are part of nature’s clean up crew.

Have you ever seen sap beetles in fruit you have thrown in the compost heap?

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