Showing posts with label Weevil. Show all posts
Showing posts with label Weevil. Show all posts

Wednesday, April 18, 2012

A bee curls up in a flower for the night, and a long-nosed bug keeps him company…

As I was walking the Little Miami Trail the other evening, a small stand of one of my favorite spring flowers, Appendaged Waterleaf (Hydrophyllum appendiculatum), caught my eye. Its papery and delicate petals of lavender were lit just right in the early evening sun, so I stopped to snap a few photos. As I trained my camera lens on the blossom, I noticed two types of bugs. I could see one was a bee curled up behind the stamens, seemingly tucked in for the night, and one was a strange-looking bug with a very long nose, scurrying around checking out every part of the flower. On closer inspection, I noticed his antenna seemed to be positioned half-way down his “nose,” which added to his cool factor. After going home and checking in my insect field guide, I learned the long-nosed beetle was some sort of snout beetle (weevil) in the family Curculionidae, and the “nose” was actually an extended part of the head that ended in a mouthpart aimed at letting the weevil bore into fruit, cotton bolls, wheat, and other vegetation.


A bee is curled up in an Appendaged Waterleaf (Hydrophyllum appendiculatum) blossom...and just above the flower, a tiny weevil is scoping out the area.


This clump of Appendaged Waterleaf was in the shadows behind the first patch I saw. I noticed the same type of bee was hanging out in the blossom, but another species of weevil was crawling around on the blossom. It was larger and darker than the little yellow-striped weevil I had just seen on the first blossom.


The warm evening sun highlighted this bee as he readied himself for the night. Male bees often do not return to the hive in the evening, spending the night in the protection of a flower blossom instead.


...let's zoom in on this furry little beast (although, if he is a male drone, he's not much of a beast because drones don't have stingers!). I love those little balls of pollen sticking to his legs...


...up pops Mr. Weevil! His super long "nose" or snout is called a rostrum (Latin for beak) and is really a downward curved extension of the head that ends in saw-like mouthparts that can bore into nuts, fruit, plants, etc. Notice how his antenna are located halfway down the rostrum (strange and cool...).


...not the greatest photo, but it does show his pattern and coloration. He's black with yellow or yellowish-green stripes and tiny dots and dents. According to my National Audubon Society's "Field Guid to Insects & Spiders," pg 612, snout beetles and weevils (family Curculionidae) are "hard-bodied beetles" that make up the largest family of insects, coming in at 40,000 species worldwide and 2,500 species in North America (now I don't feel so badly not know what species this guy is).


Appendage Waterleaf blossoms are busy places in the evening!
Most weevils are plant specific, e.g., "Acorn Weevils" feed on acorns and lay their eggs inside an acorn. The infamous "Boll Weevil" feeds on cotton bolls and lays eggs in the boll, destroying the crop.

Here is a video from National Geographic that shows an Acorn Weevil busy at work: