Label definitions
We need your help finding Female insects among a large number of Male insects.
It’s very important that you catch every single Female insect!

Please use one of these 3 labels:

Male: This insect is a male. I’m certain

Female: This insect is a female

Unsure: There is 1 or more mosquito that I’m not sure about

HOW TO TELL MALE INSECT FROM FEMALE INSECT
You look at 3 things:

1. The central antennae of a male insect branches off into a three-prong
trident at the end. The central antennae of a female insect is shaped like
a needle and doesn’t branch

Example0

2. The side antenna of the male are furry. The side antenna of the female
are more sparse

Example1

3. Generally a male insect has a U-shaped tail with a small indent, while a
female insect has a sharper and more pointy tail

Example2

You should categorize any insect you see that has at least 2 of the 3 female
characteristics as a FEMALE (for example needle central antennae and
smooth side antenna)

**If you’re not sure, you should categorize the image as Unsure **

You should categorize an insect as a Male ONLY IF you verify at least
2 of the 3 characteristics above for male (for example branched central
antennae AND furry side antenna)

The purpose of this task is to find the small number of females among a large
number of males. It is EXTREMELY important that you do not miss any females.

If you’re not sure, or if the image is blurry, contains multiple insects etc.
please use Unsure. You should never label an image as a Male unless you’re sure
it is a Male. We encourage you to use Unsure as often as you need to. You won’t
be penalized for using Unsure.

Edge case example
Example3

Once in a while you may see an insect on its side. This one is a male (tail
indent and furry side antenna). However if you cannot be sure always use Unsure.
Never label an insect as male if you’re not sure

Example4

This insect has furry side antenna (male chracteristic), branched central
antennae (male characteristic), but a pointy female-looking tail. It’s okay to
label it as a male because it has 2 out of 3 male criteria. though if you’re
uncertain labeling it as Unsure works too (never label something uncertain
as Male)