Creo sexing

[aychen222]

I know there was a thread about sexing creos on here before but I couldn't pick out the differences. Anyway here are my 2 creos, just wanted to figure out which is which. Creo 2 (V.C.) is 1 molt ahead of Creo 1(Kane)

Creo 1

Creo 2

 

[agent A]

First is male second is female

 

[aychen222]

First is male second is female

What do you look for?

 

[GreenOasis]

Honestly, it is going to be difficult for you to tell at that size unless, 1) you have others to compare to, and #b they are at least L3.

There's no visual difference in the sexes until they are L3 (this doesn't apply to all species, but works for Creos). At that L3, I can grab my handy-dandy 10x loupe & pen-light & look at the last abdominal segment. The female will have one large segment at the end (and sometimes you can see a little 'V' notch in it), the male will have a divided segment, giving a higher segment count if you are the segment-counting type.

From around L4 on, it's easy because the male Creos will develop thicker antennae (but again, it's helpful to have a larger group with both sexes, so that you have something to compare to).

 

[GreenOasis]

P.S. I think they are both female, but better pics of that last segment would be extremely helpful.

 

[agent A]

P.S. I think they are both female, but better pics of that last segment would be extremely helpful.

i beg to differ

the females have a prominent pointing ovipositor, as the second one does

the males have a unishaped abdomen as does your first one

this is a topic i started abt it, i will try and get better pics later

http://mantidforum.net/forums/index.php?showtopic=28138

 

[aychen222]

Here are some more shots of the last segment

Creo 1

Creo 2

 

[agent A]

the first is deffo female but im a bit deadlocked on the second, but i would venture towards female

 

[gripen]

Both females.