Showing posts with label identifying insects. Show all posts
Showing posts with label identifying insects. Show all posts

Thursday, June 28, 2012

Sometimes biodiversity surprises you by appearing in unexpected places. Walking through the garden from the garage, this juvenile or nymph katydid jumped onto a load of clean laundry and rode into the house.

Katydids are herbivorous insects and they do nibble on my roses at night. But they also are important food for many of the bird and lizards that eat insects in my yard. As long as predators can find clean, safe food in our yard, they come and maintain a balance. Only two or three katydids seem to survive to adulthood.

Two species of katydids, common in the Los Angeles area, are both residents in our yard.

This nymph is a fork-tailed bush katydid (Scudderia mexicana); it will grow up to be all green with long, thin leaf-shaped wings.

The other species we see is the broad-winged katydid (Microcentrum rhombifolium) To see a photo of this classic, katydid with wide, green leaf-shaped wings.



Insects that eat your plants are best kept in check by a balanced ecosystem with predators. Put the insecticides aside and attract insect predators to your yard.

Friday, June 08, 2007

Backyard Biodiversity Project - Day 8

Who knew that five cements steps leading up to the front door could be such a challenge. This seemingly sterile landscape shelters communities tucked in cracks and along the edges where debris collects.

There are the remnants of a European honey bee, a lone pill bug marching along, clusters of springtails breaking down the debris into soil.

Everything is small here. My loop reveals that the tiny spider with its web among the brick edging is a young black widow. One springtail stands out from the rest. It is larger, honey colored and has longer antennae.

Then I stumble across the truly unusual. In this brown and grey world, a lime-green maggot only 4mm long. Is it masquerading as a caterpillar? What is it doing among the dead leaves? What is it?

I search through my books and find nothing. I go back to take a photo and it is gone.

Searching the Internet I finally find that it is a larva from the Syrphid fly family, a kind of flower or hover fly.
This green guy was looking for aphids or other insects to eat.

Just as importantly, I found two wonderful insect identification resources:
  • The Bug Guide - scientific source with a great search capability
  • What's That Bug - two "save-that-beneficial-insect" like-minded folks also from Los Angeles helping people all over the world identify insects

A driving force of the Backyard Biodiversity Project is becoming aware of the living things that are sharing this small piece of the planet with me. Be INFORMED before you squash! Most bugs, even my green maggot, are beneficial to humans and the planet.