Tag Archives: Katydid

Day 7 in Belize: Last day at Las Cuevas

Today was our last day at Las Cuevas Research Station and we had a full day. We collected all the camera traps that we set up the first day. Later in the evening, we looked through the camera trap photos and the most exciting photo was of a Tapir!

We also excavated a young and old leafcutter ant nest and saw the chamber where they keep their fungi garden in the older nest. The ants bring the leaves to the fungi for it to digest to a form that the ants can eat. It was a little scary when the army ants came out of the nest and started surrounding our boots because they can cut through pants and draw blood.

It was a great day for spotting Orthoptera. I saw at least two katydids. Both mimicked brown leaves to avoid predation. I think one of them was the Dead leaf katydid (Orophus tesselatus) because it has a very similar shape and pattern of the wings to the picture on my ID card.

Leaf mimic katydid

 

Dead leaf katydid (Orophus tesselatus)

The last Orthoptera I saw was dead and had its antennae and legs eaten off which makes it harder to identify. The hind wings were like a bright red fan which made me think it was the Giant Red Winged Grasshopper (Tropidacris cristata) and not a katydid. It was also very large and had bumps on the pronotum which are characteristics of this grasshopper.

Dead Giant Red Winged Grasshopper

 

Hind wings of dead grasshopper

Some privacy please…

Unbelievable encounter today—I witnessed two giant katydids mating near a massive leaf cutter ant nest. The amorous pair fled to the safety of a tree where I shot this photo of them.

OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA

These two, and the third of the same general appearance (who I assume was the lookout) were highly camouflaged and had large spines on their hind legs.

This all occurred while we were digging out the leaf cutter ant nest in search of their fungus garden. These highly complex social insects spend all day collecting foliage, which they use to feed not the ants, but their fungus garden, which in turn is the ants’ only source of food.

OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA

In order to cut up the foliage into ant sized pieces the animals have large, sharp mandibles for slicing. But it’s not just leaves that they slice with these formidable jaws, but also young biologists! After being nibbled on by a minor worker (these insects have a caste system based on body and specifically head size—the minors are the smallest of these castes) I thought these ants were chumps. Then the major workers had a much easier time cutting through callouses on my hands. The soldiers however (pictured here), were truly tough, drawing blood from my fingers with their bites. Luckily no stings, however, so the pain was manageable.

OLYMPUS DIGITAL CAMERA
OLYMPUS DIGITAL CAMERA