Compound Eye of a Moth

Moths (like many other adult insects) have compound eyes and simple eyes. The Compound eyes are made up of many hexagonal lens/corneas which focus light from each part of the insects field of view onto a rhabdome (the equivalent of our retina). They have simple eyes (ocelli) which can only differentiate dark from light.

Proboscis of a Moth.

Moths have very long proboscis, or tongues, which they use to suck nectar or other fluids. These proboscis are very tightly coiled when not in use, like a hosepipe. When in use, the proboscis are uncoiled to their full length and in some species, that length is remarkably long.

Head part of Mosquito Larvae

The head of the mosquito larva is basically prognathous. The mouthparts, therefore, are considered as anterior appendages. The mandibles and maxillae exhibit a wealth of taxonomic characters that, unfortunately, are not extensively used in mosquito taxonomy. A lateral palatal brush (mouth[/no-lexcion] brush) is borne anteriorly on either side of the mouth. In most larvae, the brushes consist…

Polytene Chromosome from salivary glands of Chironomus Larvae

Polytene chromosomes are giant chromosomes common to many dipteran (two-winged) flies. They begin as normal chromosomes, but through repeated rounds of DNA replication without any cell division (called endoreplication), they become large, banded chromosomes.  Polytene chromosomes are usually found in the larvae, where it is believed these many-replicated chromosomes allow for much faster larval growth than if the cells remained…

Spider

The eye arrangement can be a key factor when identifying spiders to family, and sometimes to genus, but are almost never useful in identifying to species. For identifying to species, spinnerets and leg details (especially first and 4th legs) are also useful. However, the best thing anyone can do is to get an extreme closeup…

Unidentified insect in my balcony

I saw this super small insect this morning, and trapped using a tap. It was a slow moving, so very easy to catch. I tried to picture it but it appears to be some common insect, not able to identify further. Need help in it identification.

Dragonfly leg(トンボの足観察)

授業での観察記録です。 サンプルは鴨川公園で捕まえたバッタです。 撮影はiPadで、写真は何も加工していません。 デジタルズームも使っていません。

Antennae of male mosquito

Mosquitoes use their antennae as movement receivers that respond to oscillations of air particles within the insects’ surroundings. The brush-like male antennae are sensitive to sound waves, particularly to those of the frequency of the wingbeat of females; so when a male midge ‘hears’ a female with his antennae, he flies towards the source of…

Grasshopper leg(バッタの足観察)

  授業での観察記録です。 サンプルは鴨川公園で捕まえたバッタです。 撮影はiPadで、写真は何も加工していません。 デジタルズームも使っていません。

Cricket leg(コオロギの足観察)

授業での観察記録です。 サンプルは鴨川公園で捕まえたコオロギです。 撮影はiPadで、写真は何も加工していません。 デジタルズームも使っていません。

Posterior Spiracle of Maggots ( Musca domestica Larvae)

Here’s a beautiful and detailed picture of the processed Posterior Spiracle of the Musca domestica Larvae, which was collected from an infected wound. The larvae was boiled in 10% NaOH for about 5 mins and was thoroughly rinsed in water. It was then dehydrated for 2 – 5 mins in increasing concentrations of alcohol ( 70%,…

Tiny white cohabitants in the worm bin

The springtail is a small and naturally abundant invertebrate with complex mouthparts used to suck fluids from decomposed foods and fungi. What makes them unique is a forked tail-like appendage called a furcula under the abdomen that launches the springtail into the air for a quick getaway. One thing they have in common with red wigglers is that…

Head part of an Ant

Ant heads, especially the eyes and mandibles, come in all shapes and sizes. Ants use their heads to sense information about the world around them. This is very important for their survival and the life of the colony. If you watch an ant’s head, the antennae are always moving back and forth, touching, tasting, and…

Aphis gossypii (Common Cotton Aphid)

Name of Institution: CMR National PU College at ITPL, Bangalore. Student’s Name: Anjali Manoj Specimen Observed:  Aphis gossypii (Common Cotton Aphid)                                                                  On the 24th of July, I,…

Common Fruit Fly

Drosophila melanogaster, red eyed, wild type. It is widely used for biological research in genetics, physiology, microbial pathogens, and life history evolution

Wings of Trichogramma chilonis, an important biocontrol agent

Trichogramma chilonis is one of the most widely used biocontrol agents in India. This minute parasitoid is capable of parasitising the eggs of a number of lepidopteran pests on a variety of agricultural crops. [Specimen obtained from Omprakash Navik]  

Glowing hemolymph in an insect

I made a really puzzling observation today. I found a very small flying insect (~1mm) at a friends house. I could not identify if it was a really small fly, wasp or something else. Intrigued; I ended up putting it inside a foldscope. As luck would have it; I squashed the big and a whole…

Mosquito larva ?

I just assembled my Foldscope two nights ago and because of work hadn’t had a chance to go in the field and find something, so I decided to look at what might be growing in a bath water recycling system I have on my porch. I was expecting to find the usual suspects that I…

Question about High Magnification Lens

I have troubles getting centered image when using the High Magnification Lens. The image is always side-shifted and I don’t know if the problem comes from the lens assembling. On the other hand, with the LML the pictures are centered: All pictures are a fly wing.

Itchy exploration

The following images will make your head itch. If you are wondering what they show, let me tell you I have two kids and we live in Argentina (we’re in summer now). Yes! Lice! Never before I thought a louse would be a source of gratification for me. And that’s only because of Foldscope. Have…

Putting the Foldscope to the Test in the Amazon Rainforest

I made my first journey to the Peruvian Amazon about a year ago due to the discovery of a new kind of arachnid known as the ‘decoy spider‘. Since then, I’ve returned to a field site stationed at the Tambopata Research Center and have covered an array of new and interesting arthropods including glow worms and tentacled caterpillars….

From the City to the Jungle with the Foldscope

For the past few months, I’ve been conducting research in the Peruvian Amazon. But when I’m not trekking through the jungle, I’m based in Los Angeles, one of the largest cities in the U.S. So for this post I thought I’d compare and contrast a few things I’ve investigated with my Foldscope, but the moral…

What Does an Insect Leg Look Like Up close? (BioE80 Spr 2015)

In one square mile of land, it’s possible to find more insects than human beings on the entire planet. Truly, we are living on an insect’s planet. Yet, I know so relatively little about them. Armed with a foldscope and the poor dead insect gathered from my windowsill, I set out to change that. I…