B. Albopilosum
No, at this size the flap would be far smaller - roughly the bottom 10% of the area circled. I have illustrated on this photo of my 2.5" female - red is where you have circled and the blue is where the spermathecae and flap are.
That is why it is so difficult at the smaller sizes - what you're looking for at only 1.5" is very small.
 
@jrh3 Don't get discouraged. Once you see it a couple of times, and become more familiar with the different structures that different species have, it will become much easier for you to spot.
 

Media information

Category
Spermathecae sexing (Molts)
Added by
jrh3
Date added
View count
356
Comment count
4
Rating
0.00 star(s) 0 ratings

Image metadata

Device
Apple iPhone XR
Aperture
ƒ/1.8
Focal length
4.3 mm
Exposure time
1/121
ISO
64
Flash
Auto, did not fire
Filename
040996FD-C14E-4461-A40A-634684A99AA9.jpeg
File size
1.3 MB
Date taken
Tue, 07 May 2019 3:37 PM
Dimensions
1537px x 2050px

Share this media

Top